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Peacock, Wendy Lorraine. "Adaptive aspects of fat storage in small mammals." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288387.
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This thesis examines the effect of diet, photoperiod and perceived predation risk on the body composition and energy balance of voles (Clethrionomys sp and Microtus sp). These rodents are able to regulate their fat mass in response to the changeable environment in which they live by adjusting components of their energy intake and expenditure; thus making them potential candidates for the study of obesity. Throughout, body composition was determined using both destructive (dissections, Soxhlet) and non-destructive techniques (total body electrical conductivity (TOBEC), morphometrics), whilst energetic variables measured included food intake, assimilation efficiency, resting metabolic rate and daily energy expenditure (DEE). In addition, the usefulness of four non-destructive methods of measuring body composition in voles was assessed and compared to chemical analysis. When fed a diet high in fat (45 %), bank voles (Clethrionomys glareolus) reduced their food intake such that the amount of energy assimilated was equal to that on the control diet and increased fat oxidation to match intake almost immediately. On a standard diet, these voles gained approximately 10% body mass when switched from short to long photoperiod without corresponding adjustments in energy intake or expenditure, even during the period of most weight gain. When weasel (Mustela nivalis) faeces was introduced to simulate predation risk, male bank voles reduced the amount of body mass gained in response to photoperiod change, concurrent with a reduction in food intake and an increase in DEE. Both male and female voles exhibited elevated levels of faecal corticosterone when exposed to weasel faeces, indicating increased stress. In a field experiment, male field voles (Microtus agrestis) from sites with low weasel activity were heavier than those from sites with high weasel activity. There were no differences in body mass between sites with differing vole density.
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Greer, Elisabeth. "Genetic analysis of feeding behavior and fat storage in Caenorhabditis elegans." Diss., Search in ProQuest Dissertations & Theses. UC Only, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3297785.
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Samra, Jaswinder Singh. "Regulation of fat mobilisation in normal subjects in the post-absorptive state : role of hormones." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319044.
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Goff, Michael J. "Fat and oil derivatives for use as phase change materials /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3144418.
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Flynn, Michael Gerald. "Fat storage in athletes : the metabolic and hormonal responses to swimming and running exercise." Virtual Press, 1987. http://liblink.bsu.edu/uhtbin/catkey/516210.
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Despite similar rates of energy expenditure during training, competitive swimmers have been shown to store significantly greater amounts of body fat than competitive runners. In an attempt to explain these discrepancies, male collegiate swimmers (n=8) and runners (n=8) were monitored during 45 min of swimming and running, respectively (75% V02 max), and during two hours of recovery. In addition, a group of male competitive triathletes (n=6) were similarly monitored during and after both swimming and running exercise.Blood samples were obtained after 15 min rest prior to exercise and at 0, 15, 30, 60 and 120 min of recovery and were analyzed for glucose, lactate, glycerol, free fatty acids, insulin, glucagons, norepinephrine (NE) and epinephrine (E). Respiratory gases were collected at 15 min intervals during exercise and at 15, 30, 45, 60, 90 and 120 min of recovery. Heart rate and mean body temperature were recorded at 10 min intervals throughout recovery. There were no differences in post-exercise oxygen consumption or heart rate while the RER suggested increased fat oxidation after exercise for the swimmers and the swimming triathletes. The mean body temperature and mean skin temperatures were significantly lower throughout 120 min of recovery for the swimmers compared to the runners. The triathletes demonstrated a similar tendency but these differences were not significant. The serum glucose levels were significantly greater (P<0.05) immediately post-exercise for the runners compared to the swimmers (6.71 +0.29 and 4.97 +0.19 mmol•1-1, respectively). Blood glucose values were also significantly greater immediately post-run for the triathletes (6.40 +0.26 and 4.87 ±0.18 mmol-l-1 for running and swimming, respectively). Blood glucose values remained elevated for runners and the running triathletes up to 30 min of recovery. Free fatty acids were similar after the run and the swim, but glycerols were increased immediately after running in the runners (P<0.05) and the triathletes (P<0.05). Differences in blood glucose levels or fat release were not explained by differences in NE, E or cortisol. The glucagon-to-insulin (G:I) ratio was significantly increased after exercise in the swimmers and the swimming triathletes. This, combined with a reduced RER after the swimming trials, suggests that the reduced glucose levels were due to reduced hepatic glycogen stores. The results of this study suggest that there were differences in substrate utilization during running and swimming exercise of the same intensity. These differences were not explained by NE, E or cortisol; however, the increased G:T ratio suggests increased carbohydrate use during exercise in the swimmers. Finally, body fat differences between runners and swimmers were not explained by differences in post-exercise energy expenditure or fat oxidation.
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White, Jason Franklin Suppes Galen J. "Flammability characterization of fat and oil derived phase change materials." Diss., Columbia, Mo. : University of Missouri--Columbia, 2005. http://hdl.handle.net/10355/6252.
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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on February 12, 2010). Thesis advisor: Dr. Galen J. Suppes. Includes bibliographical references.
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Xu, Yanjun [Verfasser], Ronald P. [Akademischer Betreuer] [Gutachter] Kühnlein, and Ahmed [Gutachter] Mansouri. "Regulation of Drosophila melanogaster body fat storage by store-operated calcium entry / Yanjun Xu ; Gutachter: Ronald P. Kühnlein, Ahmed Mansouri ; Betreuer: Ronald P. Kühnlein." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1132813042/34.
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Moreira, Gabriel Costa Monteiro. "Genome-wide association studies reveal genomic regions and positional candidate genes for fat deposition in chickens." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-17072018-191146/.
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Excess of fat deposition is a negative factor for poultry production, which affects feed efficiency and consequently the costs of meat production. The incorporation of genomic tools in poultry breeding programs may help to accelerate the selection for increased production efficiency. In this context, we genotyped approximately 2,000 42 days-old chickens from two different populations (Brazilian F2 Chicken Resource population and TT broiler Reference Population) using a high-density SNP array (600K, Affymetrix) to estimate genomic heritability of fatness-related traits, to identify genomic regions and positional candidate genes (PCGs) associated with these traits. We performed genome-wide association (GWAS) analysis using GenSel software (Bayesian approach) to identify 1 Mb genomic windows associated with abdominal fat, skin and carcass fat content traits. The search for PCGs were made within each genomic windows associated considering their Gene Ontology (GO) terms and also the literature information. We also integrated into this study NGS-SNPs data from both populations and selection signature regions identified in Brazilian F2 Chicken Resource population to refine the list of PCGs. The genomic heritability values for fatness-related traits were from moderate to high (greater than 0.30). We identified quantitative trait loci (QTL) for abdominal fat, skin and carcass fat content traits harboring several PCGs involved in biological processes of fat deposition. We identified several NGS-SNPs annotated in potential functional regions in our PCGs and some of those were predicted as deleterious and high impact mutations. Besides that, some genes overlapped with selection signature regions in Brazilian F2 Chicken Resource population. Important candidate genes for fat deposition were identified, providing new insights to achieve a better understanding of the genetic control of fat deposition in chickens.O excesso de deposição de gordura é um fator negativo para a produção de aves, o que afeta a eficiência alimentar e consequentemente os custos da produção de carne. A incorporação das ferramentas genômicas em programas de melhoramento de aves pode ajudar a acelerar a seleção para aumentar a eficiência da produção. Neste contexto, genotipamos cerca de 2.000 aves de 42 dias de duas populações diferentes (população F2 experimental brasileira e população de corte referência TT) usando um chip de SNPs de alta densidade (600K, Affymetrix) para estimar a herdabilidade genômica de características relacionadas à deposição de gordura, para identificar regiões genômicas e genes candidatos posicionais (PCGs) associados a essas características. Realizamos análises de associação genômica ampla (GWAS) usando o programa GenSel (abordagem Bayesiana) para identificar janelas genômicas de 1 Mb associadas com características de gordura abdominal, pele e conteúdo de gordura na carcaça. A busca por PCGs foi feita dentro de cada janela genômica associada, considerando os Gene Ontology (GO) terms e também a informação da literatura. Integramos neste estudo NGS-SNPs identificados em animais parentais de ambas as populações, e além disso, regiões de assinaturas de seleção identificadas na população F2 experimental brasileira para refinar a lista de PCGs. Os valores de herdabilidade genômica para as características relacionadas à gordura foram de moderado a alto (maior que 0,30). Identificamos QTL para características de gordura abdominal, pele e conteúdo de gordura na carcaça contendo PCGs envolvidos em processos biológicos de deposição de gordura. Identificamos vários NGS-SNPs anotados em regiões potencialmente funcionais em nossos PCGs e alguns desses foram preditos como mutações deletérias e de alto impacto. Além disso, alguns genes se sobrepuseram com regiões de assinatura de seleção na população F2 experimental brasileira. Foram identificados importantes genes candidatos para a deposição de gordura, fornecendo novos insights para alcançar uma melhor compreensão do controle genético da deposição de gordura em frangos.
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Baumbach, Jens [Verfasser], Ronald P. [Akademischer Betreuer] Kühnlein, and Herbert [Akademischer Betreuer] Jäckle. "An in vivo RNAi screen identifies evolutionary conserved Drosophila fat storage regulators / Jens Baumbach. Gutachter: Ronald P. Kühnlein ; Herbert Jäckle. Betreuer: Ronald P. Kühnlein." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2014. http://d-nb.info/1051132541/34.
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Sutterlin, William R. "Using environmental chemistry technologies for the removal of arsenic from drinking water, and fat and oil based phase change materials for thermal energy storage /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3137754.
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Baumbach, Jens Verfasser], Ronald P. [Akademischer Betreuer] Kühnlein, and Herbert [Akademischer Betreuer] [Jäckle. "An in vivo RNAi screen identifies evolutionary conserved Drosophila fat storage regulators / Jens Baumbach. Gutachter: Ronald P. Kühnlein ; Herbert Jäckle. Betreuer: Ronald P. Kühnlein." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2014. http://nbn-resolving.de/urn:nbn:de:gbv:7-11858/00-1735-0000-0022-5EAF-7-5.
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Cai, Yingqi. "Lipogenic Proteins in Plants: Functional Homologues and Applications." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404563/.
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Although cytoplasmic lipid droplets (LDs) are the major reserves for energy-dense neutral lipids in plants, the cellular mechanisms for packaging neutral lipids into LDs remain poorly understood. To gain insights into the cellular processes of neutral lipid accumulation and compartmentalization, a necessary step forward would be to characterize functional roles of lipogenic proteins that participate in the compartmentalization of neutral lipids in plant cells. In this study, the lipogenic proteins, Arabidopsis thaliana SEIPIN homologues and mouse (Mus Musculus) fat storage-inducing transmembrane protein 2 (FIT2), were characterized for their functional roles in the biogenesis of cytoplasmic LDs in various plant tissues. Both Arabidopsis SEIPINs and mouse FIT2 supported the accumulation of neutral lipids and cytoplasmic LDs in plants. The three Arabidopsis SEIPIN isoforms play distinct roles in compartmentalizing neutral lipids by enhancing the numbers and sizes of LDs in various plant tissues and developmental stages. Further, the potential applications of Arabidopsis SEIPINs and mouse FIT2 in engineering neutral lipids and terpenes in plant vegetative tissues were evaluated by co-expressing these and other lipogenic proteins in Nicotiana benthamiana leaves. Arabidopsis SEIPINs and mouse FIT2 represent effective tools that may complement ongoing strategies to enhance the accumulation of desired neutral lipids and terpenes in plant vegetative tissues. Collectively, our findings in this study expand our knowledge of the broader cellular mechanisms of LD biogenesis that are partially conserved in eukaryotes and distinct in plants and suggest novel targets that can be introduced into plants to collaborate with other factors in lipid metabolism and elevate oil content in plant tissues.
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Amur, Hrishikesh. "Storage and aggregation for fast analytics systems." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50397.
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Computing in the last decade has been characterized by the rise of data- intensive scalable computing (DISC) systems. In particular, recent years have wit- nessed a rapid growth in the popularity of fast analytics systems. These systems exemplify a trend where queries that previously involved batch-processing (e.g., run- ning a MapReduce job) on a massive amount of data, are increasingly expected to be answered in near real-time with low latency. This dissertation addresses the problem that existing designs for various components used in the software stack for DISC sys- tems do not meet the requirements demanded by fast analytics applications. In this work, we focus specifically on two components:
1. Key-value storage: Recent work has focused primarily on supporting reads with high throughput and low latency. However, fast analytics applications require that new data entering the system (e.g., new web-pages crawled, currently trend- ing topics) be quickly made available to queries and analysis codes. This means that along with supporting reads efficiently, these systems must also support writes with high throughput, which current systems fail to do. In the first part of this work, we solve this problem by proposing a new key-value storage system – called the WriteBuffer (WB) Tree – that provides up to 30× higher write per- formance and similar read performance compared to current high-performance systems.
2. GroupBy-Aggregate: Fast analytics systems require support for fast, incre- mental aggregation of data for with low-latency access to results. Existing techniques are memory-inefficient and do not support incremental aggregation efficiently when aggregate data overflows to disk. In the second part of this dis- sertation, we propose a new data structure called the Compressed Buffer Tree (CBT) to implement memory-efficient in-memory aggregation. We also show how the WB Tree can be modified to support efficient disk-based aggregation.
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Mao, Yandong. "Fast in-memory storage systems : two aspects." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93819.
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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 109-114).
This dissertation addresses two challenges relating to in-memory storage systems. The first challenge is storing and retrieving data at a rate close to the capabilities of the underlying memory system, particularly in the face of parallel accesses from multiple cores. We present Masstree, a high performance in-memory key-value store that runs on a single multi-core server. Masstree is derived from a concurrent B+tree. It provides lock-free reads for good multi-core performance, which requires special care to avoid writes interfering with concurrent reads. To reduce time spent waiting for memory for workloads with long common key prefixes, Masstree arranges a set of B+trees into a Trie. Masstree uses software prefetch to further hide DRAM latency. Several optimizations improve concurrency. Masstree achieves millions of queries per second on a 16-core server, which is more than 30x as fast as MongoDB [6] or VoltDB [17]. The second challenge is replicating storage for fault-tolerance without being limited by slow writes to stable disk storage. Lazy VSR is a quorum-based replication protocol that is fast and can recover from simultaneous crashes of all the replicas as long as a majority revive with intact disks. The main idea is to acknowledge requests after recording them in memory, and to write updates to disk in the background, allowing large batched writes and thus good performance. A simultaneous crash of all replicas may leave the replicas with significantly different on-disk states; much of the design of Lazy VSR is concerned with reconciling these states efficiently during recovery. Lazy VSR's client-visible semantics are unusual in that the service may discard recent acknowledged updates if a majority of replicas crash. To demonstrate that clients can nevertheless make good use of Lazy VSR, we built a file system backend on it. Evaluation shows that Lazy VSR achieves much better performance than a version of itself with traditional group commit. Lazy VSR achieves 1.7 x the performance of ZooKeeper [42] and 3.6 x the performance of MongoDB [6].
by Yandong Mao.
Ph. D.
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Wires, Jacob Taylor. "Storage system design for fast nonvolatile memories." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63305.
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Nonvolatile memories are transforming the data center. Over the past
decade, enterprise flash has evolved to provide a thousand times more
random-access throughput than mechanical disks, with a thousand times
lower latency and ten times more capacity. These remarkable
improvements completely reshape software concerns, allowing storage
systems to take a more central role in dynamic resource management,
but demanding that they do so with significantly lower overheads.
This thesis presents several novel software techniques for managing
high-density storage systems. In particular, it describes a
probabilistic approach to workload modeling that provides guaranteed
error bounds while dramatically reducing memory overheads relative to
existing state-of-the-art algorithms. It also documents the design and
implementation of a storage controller that leverages dynamic
constraint satisfaction techniques to continually optimize data and
network flow placement for performance, efficiency, and scale.
These advances are presented within a broader design framework that
provides a flexible and robust platform for managing all aspects of
storage resource allocation. Informed by experiences and insights
gained over six years of building an enterprise scale-out storage
appliance, it is based on three key ideas: light-weight
abstraction to decouple logical resources from physical
hardware, online analysis to capture workload requirements,
and dynamic actuation to adjust allocations as requirements
change. Together, these capabilities allow storage software to
dynamically adapt to changing workload behavior and allow stored data
to play a more active role in data center computing.Science, Faculty of
Computer Science, Department of
Graduate
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Lopes, Shailesh M. "Evaluation of fats and oils & their derivatives as potential phase change materials (PCM) for thermal energy storage /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418045.
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Hastuti, Pudji. "The fate of pirimiphos-methyl during storage and processing of rapeseed." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335918.
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Oh, Sang Joon. "Electromagnetics of inertial energy storage systems with fast electromechanical energy conversion /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.
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Műller, Martin. "Zdravotně technické a plynovodní instalace v předškolním zařízení." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372073.
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The thesis deals with the technical and gas installation with the use of precipitation water in pre-school facilities. The theoretical part deals with fat traps. The experimental part is focused on water flows, pre-school facilities. In the design and calculation part are drafted sewerage, water supply, gas pipeline, use of rain water and connection of the building to utility networks. The thesis was elaborated according to current standards, laws and decrees
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Liu, Chengjian. "ESetStore: an erasure-coding based distributed storage system with fast data recovery." HKBU Institutional Repository, 2018. https://repository.hkbu.edu.hk/etd_oa/507.
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The past decade has witnessed the rapid growth of data in large-scale distributed storage systems. Triplication, a reliability mechanism with 3x storage overhead and adopted by large-scale distributed storage systems, introduces heavy storage cost as data amount in storage systems keep growing. Consequently, erasure codes have been introduced in many storage systems because they can provide a higher storage efficiency and fault tolerance than data replication. However, erasure coding has many performance degradation factors in both I/O and computation operations, resulting in great performance degradation in large-scale erasure-coded storage systems. In this thesis, we investigate how to eliminate some key performance issues in I/O and computation operations for applying erasure coding in large-scale storage systems. We also propose a prototype named ESetStore to improve the recovery performance of erasure-coded storage systems. We introduce our studies as follows. First, we study the encoding and decoding performance of the erasure coding, which can be a key bottleneck with the state-of-the-art disk I/O throughput and network bandwidth. We propose a graphics processing unit (GPU)-based implementation of erasure coding named G-CRS, which employs the Cauchy Reed-Solomon (CRS) code, to improve the encoding and decoding performance. To maximize the coding performance of G-CRS by fully utilizing the GPU computational power, we designed and implemented a set of optimization strategies. Our evaluation results demonstrated that G-CRS is 10 times faster than most of the other coding libraries. Second, we investigate the performance degradation introduced by intensive I/O operations in recovery for large-scale erasure-coded storage systems. To improve the recovery performance, we propose a data placement algorithm named ESet. We define a configurable parameter named overlapping factor for system administrators to easily achieve desirable recovery I/O parallelism. Our simulation results show that ESet can significantly improve the data recovery performance without violating the reliability requirement by distributing data and code blocks across different failure domains. Third, we take a look at the performance of applying coding techniques to in-memory storage. A reliable in-memory cache for key-value stores named R-Memcached is designed and proposed. This work can be served as a prelude of applying erasure coding to in-memory metadata storage. R-Memcached exploits coding techniques to achieve reliability, and can tolerate up to two node failures. Our experimental results show that R-Memcached can maintain very good latency and throughput performance even during the period of node failures. At last, we design and implement a prototype named ESetStore for erasure-coded storage systems. The ESetStore integrates our data placement algorithm ESet to bring fast data recovery for storage systems.
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Ramasamy, Thilahavathy. "Fate of Foodborne Pathogens During Osmotic Dehydration and Subsequent Storage of Apples." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/34379.
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The fate of E. coli O157:H7 and Salmonella spp. during osmotic dehydration of apples was determined at different processing temperatures, times and calcium chloride (CaCl2) concentrations. Apple slices were inoculated to achieve an 8 log CFU/ apple slice concentration of a five strain mixture of E. coli O157:H7 or Salmonella spp. and were soaked in sucrose solutions (60% w/w). In the first study, apple slices were subjected to osmotic dehydration at three different temperatures: 20°C, 45°C and 60°C. In a second study, CaCl2 was added in the sucrose solution at concentrations of 2%, 4% and 8% to determine its efficacy as an antimicrobial agent. The storage effect of osmotic dehydrated apples on pathogen survival was also tested for seven days at 4°C.
Samples were withdrawn at appropriate time intervals, diluted with 0.1% peptone water and surface plated onto recovery media. Recovery of E. coli O157:H7 was compared on Tryptic Soy Agar + 50 ppm nalidixic acid (TSAN) and MacConkey Sorbitol agar (MCS). Recovery of Salmonella was compared on TSAN and XLD agar.
There was lower microbial reduction at the lower temperatures tested with approximately 1.0 and 3.0 log CFU/apple slice reduction at 20°C and 45°C, respectively. The population reduction of cells was highest at 60°C, with an approximate five log reduction for both microorganisms (P<0.001). CaCl2 used as an additive in the osmotic solution, was associated with slightly higher reduction of both E. coli O157:H7 and Salmonella spp. Greater than a 5 log reduction was observed when the combination of CaCl2 (8%) and 60°C processing temperature was used. During refrigerated storage E. coli O157:H7 and Salmonella decreased by approximately 4.5 log CFU/apple slice, but were still recoverable via direct plating at Day seven.
The results of this study show that the survival of E. coli O157:H7 and Salmonella in osmotically dehydrated fruit is influenced by the osmotic processing method used and the level of additive (i.e., CaCl2) utilized. Parameters associated with decreased survival of pathogens, and therefore, improve product safety, include increasing temperature and time of processing and increasing concentration of CaCl2. However, E. coli O157:H7 and Salmonella in artificially contaminated apple slices, survived osmotic dehydration processing and subsequent storage under processing and storage parameters of this study. Therefore, processors who produce osmotically dehydrated fruit must consider the potential food safety impact of the osmotic dehydration processes they choose.
Master of Science
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Gragnani, Filippo. "Riorganizzazione del sistema di stoccaggio di un sub-fornitore con tecniche di storage assignment e storage allocation: il caso Bosh Rexroth Oil Control S.p.A." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
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Il progetto sviluppato nell’elaborato di tesi nasce a fronte della scarsa performance rilevata dalla Funzione Qualità di Bosch Rexroth Oil Control S.p.A., in merito al Quality KPI “ppm”. L’analisi della causa radice di quest’ultimo ha dimostrato come un External WorkBench (EWB), sub-fornitore operante per conto di Rexroth, presentasse importanti lacune nella gestione del proprio magazzino e come fra i due attori della stessa supply chain ci fosse una marcata asimmetria informativa. L’obiettivo dell’elaborato di tesi è stato dunque quello della riorganizzazione del magazzino di EWB: attraverso criteri di Storage assignment e Storage allocation si sono determinate posizione e numero di locazioni da riservare ad ogni referenza nella struttura ricettiva del terzista, così da ottimizzare le attività di stoccaggio e prelievo da esso effettuate. In questo contesto è stata introdotta anche una Fast Pick area dimensionata secondo le strategie EQS, EQT e OPT e valutata attraverso le F.O. Tempo e Spazio. La mappatura prodotta fornirà un contributo determinante all’estensione del WMS di Rexroth ad EWB, così da colmare il gap informativo.
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Shankar, Dipti. "Designing Fast, Resilient and Heterogeneity-Aware Key-Value Storage on Modern HPC Clusters." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1563522337179638.
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Longo, Luca. "Optimal design of an EV fast charging station coupled with storage in Stockholm." Thesis, KTH, Energiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-216162.
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Pereira, Antonio M. "Energy-storage multifunctional composites." Diss., Restricted to subscribing institutions, 2009. http://proquest.umi.com/pqdweb?did=2026649971&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
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Merck, Madeline F. "Variability of Water Storage and Instream Temperature in Beaded Arctic Streams." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/912.
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The purpose of this study is to investigate variation in water export and instream temperatures throughout the open water season in a beaded Arctic stream, consisting of small pools connected by shallow chutes. The goals are to better understand heat and mass movement through these systems, how this may impact chemical and biological processes, and the resulting shifts with changes in climate. This is accomplished by first examining the extent and variability of water storage and export through qualitative analysis of observational data. Further, heat fate and transport is examined through development of an instream temperature model. The model formulation, a simple approach to model calibration and validation, and information regarding residence and characteristic times of different pool layers are presented. Using temperatures measured at high spatial resolution within the pools and surrounding bed sediments as well as other supporting data (e.g., instream flow, specific conductivity, weather data, and bathymetry), various types of storage within the pools, banks, and marshy areas within the riparian zone, including subsurface flow paths that connect the pools, were found. Additionally, data illustrated that some pools will stay stratified during higher flow periods under certain weather conditions. Through modeling efforts, the dominant heat sources were found to vary between stratified layers. It was also found that potential increases in thaw depths surrounding these pools can shift stratification and mixing patterns. These shifts can further influence mass export dynamics and instream water quality. Given the amount and different types of storage within these systems and the influence of stratification patterns on the residence times in the pools, Imnavait Basin and similar beaded Arctic watersheds will likely experience delayed export of nutrients that are limiting in most Arctic systems.
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Lopes, Shailesh M. "Synthesis, characterization and applications of fats and oil derived phase change materials." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5938.
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Thesis (Ph. D.)--University of Missouri-Columbia, 2007.The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on March 20, 2009) Vita. Includes bibliographical references.
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Esser, John R. "Assessment and reduction of insect infestation of cured fish in South East Asia, with laboratory studies on Chrysomya megacephala (Fab.), a principal causative agent." Thesis, Durham University, 1988. http://etheses.dur.ac.uk/6592/.
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A survey of cured fish establishments in 5 countries of South East Asia, revealed that cured fish is a nutritionally and economically important commodity in the region and that insect infestation, in particular blowfly infestation during processing and dermestid beetle infestation during storage, are major causes of losses in cured fish. Many processors have responded by illegally applying household and agricultural insecticides to their fish. Field investigations in Indonesia and Thailand, identified Chrysomya megacephala (Fab.) as the most widespread cause of infestation during processing. Lucilia caprina (Wied.) was also a common cause of infestation. Dermestes maculatus (Degeer), D. carnivorus (Fab.), D. ater (Degeer) and Piophila casei (L.), were the most common causes of infestation during storage. These species were able to tolerate the relatively high salt concentrations of the processed fish. Field infestation reduction trials, demonstrated that salting the fish for an extended period failed to provide protection against insect infestation. Guarding the salting tank with a closely fitting lid, prevented blowfly infestation during salting. Flyscreens were found to reduce blowfly infestation during drying, but the design used, presented practical difficulties and was not acceptable to the processor. The pyrethroid insecticide Fastac (alphacypermethrin), prevented blowfly infestation during processing at concentrations as low as 0.00.3% and had a marked repellent effect against blowflies at a concentration of 0.001%. Fastac, applied at a concentration of 0.006%, protected fish against dermestid beetle infestation and damage. Fastac residues in fish treated with a 0.006% dip decreased to less than 2 rag/kg after drying and 1 week's storage. The pyrethroid insecticide deltamethrin, prevented insect infestation during processing and storage, when applied as a 0.003% dip before drying. The FAO/WHO approved insecticide piriraiphos-methyl, reduced blowfly infestation and prevented damage during processing and reduced dermestid beetle infestation during storage, when applied as a 0.03% dip before drying. This treatment resulted in residues, after processing, that were within the FAO/WHO maximum residue limit of 10 mg/kg.Spray applications of pirimiphos-methyl, at dosages of 5-20 mg/kg and deltaraethrin, at dosages of 1-3 mg/kg, were effective in reducing dermestid beetle infestation of smoked fish during storage. Laboratory investigations demonstrated that C. megacephala produced similar numbers of male and female offspring and that there was no difference between the mortalities of the 2 sexes. Female flies greatly outnumbered male flies at the processing site. Mean lifespans of C. megacephala cage populations ranged from 47-54 days and the maximum survival time ranged from 80-98 days. C. megacephala eggs matured within 3 weeks of adult emergence and the mean egg count for the adult female flies was 221.The presence of C. megacephala eggs on fish, stimulated oviposition by C. megacephala and freshly laid eggs were found to have a higher stimulatory effect than eggs which had been previously boiled. Fish being salted exerted a marked, differential attractive effect on gravid, female flies. When presented with fish of a range of salt concentrations, C. megacephala preferentially oviposited on the fish with the lowest salt concentration. In the absence of choice, C. megacephala readily oviposited on fish with relatively high salt contents of 30-40% (dwb). A feeding medium salt content of 33.8% was necessary to significantly reduce larval growth rate and salt contents in excess of 39.5% were necessary to obtain high larval mortalities. Salt contents of up to 39.5% had no effect on pupal mortality.
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Sundgren, Robert. "Optimization of a battery energy storage system : For utilization of peak shaving and fast frequency reserve." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172786.
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As Sweden switches to increasing renewable electricity production the demand on the energy grid and energy market will become higher. Since a bigger part of the electricity consumption will come from flowing energy sources the production will become less stable and harder to plan with the consumption. The inertia of the electrical system will also decrease since solar and wind power are not synchronously connected to the electrical system which will make the system more sensitive to interference. In order to keep the short-term balance so that the frequency remains at 50 𝐻𝑧, Svenska kraftnät has several reserves at their disposal. As of summer 2020, Svenska kraftnät will launch a new reserve called Fast frequency reserve (FFR) with the purpose to deal with rapid imbalances. By supplementing a wind farm with a battery energy store system (BESS), it becomes possible to even out the wind farm's intermittent electricity production by applying peak shaving and lower the grid costs for the wind farm. Because a BESS can provide power within a fraction of a second and is therefore is suitable to provide FFR. To study the profitability and determine what capacity and power a BESS needs for peak shaving and FFR with a wind farm, an optimization model was built in MATLAB to study the profitability of a BESS with multiple power and capacity combination. In addition, the cycling of the BESS and the limitation of peak shaving was also studied to get deeper knowledge about the limitations. The optimization model is using hourly generation data from a wind farm in northern Sweden. Besides the BESS optimization, a separate optimization model was built in order regulate the output power to minimize the generation cost by prolonging the service life of a wind turbine (WTG). The purpose of this optimization was to study if regulating the output power could lower the generation cost, more for the WTG. In addition of the net income the loss of electricity was also studied. The optimization used hourly data during one time period every season during of 2019. The optimization for the BESS showed that the levelized cost of storage (𝐿𝐶𝑂𝑆𝐸) is currently too high for a BESS to be used for only peak shaving with a wind farm. For a BESS to be feasible together with a wind farm the 𝐿𝐶𝑂𝑆𝐸 needs to decrease towards 𝐿𝐶𝑂𝑆𝐸<6 𝐸𝑈𝑅/𝑀𝑊ℎ, and when the BESS also supplied FFR the income increased between 1.5 – 8% depending on the power output for the BESS. The capacity was the limiting factor for the BESS when preforming peak shaving while FFR was limited by the power because of the low energy demand in FFR. Lowering the power output for a WTG resulted in an increased net income for every month between 10 – 90% although this increased income will become more apparent when the operation and maintenance cost starts to drop over a couple of year but this open up a discussion of how an owner should operate there WTG.
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Burant, Aniela S. "Fate of Organic Compounds in High Salinity Waters and Supercritical CO2 Associated with Carbon Storage Environments." Research Showcase @ CMU, 2015. http://repository.cmu.edu/dissertations/602.
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Carbon capture, utilization, and storage (CCUS), including enhanced oil recovery (EOR), is one of the most promising mitigation strategies for climate change. CCUS involves the capture of CO2 from point sources and the subsequent injection of that CO2 into geologic storage formations. Depleted oil reservoirs will be the first targets of CCUS due to the economic benefits associated with EOR. EOR operations are expected to produce large volumes of wastewater brines with the crude oil. Brines, which can have high concentrations of salts and dissolved organic compounds; and CO2, which can have dissolved organic compounds, have potential to leak into shallower aquifers. Therefore, fundamental research is needed on the levels of organic compounds in both the reservoir brines and CO2 in case of leakage. This thesis was divided into two parts. Part I was concerned with the aqueous solubility of organic compounds in brines. The presence of dissolved salts typically results in a decrease in organic compound aqueous solubility, this is called the salting-out effect, and it is typically modeled by the Setschenow Equation. Setschenow constants, which are empirical salting-out parameters, are assumed to be additive, meaning that they are applicable in mixed electrolyte solutions. However, this has not been verified by extensive experimental work. For accurate risk assessment modeling, Setschenow constants are needed for NaCl and CaCl2 for hundreds of organic compounds relevant to oil and gas reservoirs. However, there are only ~190 reported NaCl Setschenow constants and ~19 reported CaCl2 Setschenow constants. For the majority of these compounds, the validity of the Setschenow Equation has only been proven up to 0.5 – 1 M NaCl/CaCl2; and has not been extended up to salt concentrations relevant to oil and gas reservoir brines. The first objective of this study was to determine the validity of the Setschenow Equation for selected hydrophobic compounds in the range of 2 – 5 M NaCl, 1.5 – 2 M CaCl2, and in mixed electrolyte brines. The salting-out effect was measured in NaCl, CaCl2, and mixed Na-Ca brines for naphthalene, fluorene, phenanthrene, thiophene, benzothiophene, and dibenzothiophene. In this study, the Setschenow Equation was proven to be valid up to 2 – 5 M NaCl and 1.5 – 2 M CaCl2 for the organic compounds studied here. Setschenow constants were additive for fluorene and thiophene from moderate to high ionic strengths. Results demonstrated that previously determined Setschenow constants measured at low salt concentrations do not need to be re-measured at high salt concentrations. Objective 2 was to determine the validity of the Setschenow Equation for selected hydrophilic compounds up to 5 M NaCl, 2 M CaCl2, and in mixed electrolyte brines. The Setschenow Equation was proven to be valid in predicting the salting-out effect up to those high salt concentrations for three phenol, p-cresol, hydroquinone, 9-hydroxyfluorene, pyrrole, and hexanoic acid. Setschenow constants were additive for p-cresol and 9-hydroxyfluorene up to high ionic strengths. In addition to demonstrating the validity of the Setschenow Equation for these selected organic compounds, both Objective 1 and 2 added to a sparse database of NaCl and CaCl2 Setschenow constants. In Objective 3 models were evaluated, updated, and developed for prediction of Setschenow constants. Two models, a poly-parameter linear free energy relationship (pp-LFER) and a single parameter (sp) LFER, for prediction of NaCl Setschenow constants were evaluated and updated with new NaCl Setschenow constant data from both this study and the literature. The pp-LFER uses the Abraham solvation parameters of the organic compound of interest as inputs and the sp-LFER uses the octanol-water partitioning coefficient of the organic compound to predict NaCl Setschenow constants. Both models produced predictions of Setschenow constants that had good agreement with the experimental NaCl Setschenow constants in this study. The update of these models increased the breadth of organic compounds, and therefore confidence, in these models. In addition, four new models were developed to predict Setschenow constants of four other salts, which include CaCl2, KCl, LiCl, and NaBr. Extensions of this study include determining whether the Setschenow Equation is valid in predicting the salting-out effect for additional organic organics, different salts, and in additional mixed electrolyte systems. Finally, Part II of this study explored the data gaps related to the partitioning of organic compounds from water to sc-CO2. Objective four was to develop new linear partitioning models based on experimental water-sc-CO2 data of selected nitrogen, sulfur, and oxygen containing organic compounds and literature data. There are only ~37 organic compounds that have reported water-sc-CO2 partitioning coefficients; however thousands of partitioning coefficients are needed over a range of temperature and pressure conditions. Therefore, models are needed to accurately predict these partitioning coefficients. Partitioning coefficients over a range of temperatures and pressures were measured for thiophene, pyrrole, and anisole. Those measured partitioning coefficients followed trends based on vapor pressure and aqueous solubility. These partitioning coefficients, along with literature values were used to update a pp-LFER. Five new models based on inputs of vapor pressure, aqueous solubility, and CO2 density were developed to predict water-sc-CO2 partitioning coefficients. Those models were developed using data from this study and literature data. Four of those models are specific to organic compound classes, which include monopolar substituted benzenes, polar substituted benzenes, chlorinated phenols, and nitrogen containing compounds, and the other model is available to any organic compound that has vapor pressure, aqueous solubility, and CO2 density inputs that fall within the specified training range. Possible extensions of this study include further research testing of different groups of organic compounds in water-sc-CO2 systems, co-solvency effects, determining the effects of the salting-out effect in water-sc-CO2 partitioning, and using sc-CO2 for water treatment.
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Andersson, Malin. "Energy storage solutions for electric bus fast charging stations : Cost optimization of grid connection and grid reinforcements." Thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-317283.
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This study investigates the economic benefits of installing a lithium-ion battery storage (lithium iron phosphate, LFP and lithium titanate, LTO) at an electric bus fast charging station. It is conducted on a potential electric bus system in the Swedish city Västerås, and based on the existing bus schedules and routes as well as the local distribution system. The size of the energy storage as well as the maximum power outtake from the grid is optimized in order to minimize the total annual cost of the connection. The assessment of the distribution system shows that implementing an electric bus system based on opportunity charging in Västerås does not cause over-capacity in the 10 kV grid during normal feeding mode. However, grid reinforcements might become necessary to guarantee potential backup feeding modes. Batteries are not a cost effective option to decrease grid owner investments in new transformers. However, battery energy storage have the possibility to decrease the annual cost of connecting a fast charging station to the low-voltage grid. The main advantage of the storage system is to decrease the fees to the grid owner. Of the studied batteries, LTO is the most cost effective solution because of its larger possible depth-of-discharge for a given cycle life. The most important characteristics, that determine if a fast charging station could benefit economically from an energy storage, is the bus frequency. The longer the time in between buses and the higher the power demand, the more advantageous is the energy storage.
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KEMACHEEVAKUL, PATIYA. "FATE OF MICRO-ORGANIC POLLUTANTS ON THE RECOVERY OF PHOSPHORUS FROM URINE." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/151966.
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Parker, Deborah Karen. "Hydrophobic polypeptides in beer, foam and haze and their fate during the brewing process and in storage." Thesis, Heriot-Watt University, 2002. http://hdl.handle.net/10399/440.
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Wood, Brandon C. (Brandon Christopher). "Exploring kinetics and thermodynamics in fast-ion conductors and hydrogen-storage materials using ab-initio molecular dynamics." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42136.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.Includes bibliographical references (p. 173-190).
We investigate the interplay between various kinetic processes and thermodynamic factors in three materials--silver iodide (AgI), cesium hydrogen sulfate (CsHSO4), and sodium alanate (NaAlH4)-using ab-initio molecular dynamics simulations. The time-averaged and instantaneous silver substructure in the fast-ion conductor AgI is analyzed, resulting in a set of ordering rules that govern the distribution of the mobile silvers in the first coordination shell surrounding an iodine. We find evidence of an independent phase transition of the silver ions which drives the structural transformation to the high-mobility phase. A thermodynamic motivation for the existence of fast-ion conduction is suggested in terms of an entropic stabilization associated with the decrease in silver mobility upon melting. We also find a unique chemical signature for the fourth nearest-neighbor silver to an iodine. This fourth silver is weakly bound and relatively unconstrained, and we isolate it as the predominant agent in the diffusion process. Next, a detailed statistical analysis is performed on simulations of the fuel-cell electrolyte CsHSO4 to isolate the interplay between the dynamics of the O-H chemical bonds, the ... H hydrogen bonds, and the SO4 tetrahedra in promoting proton conduction. A high reversal rate limits the apparent success rate of the otherwise rapid chemical-bond dynamics, which are dominated by the Grotthuss mechanism of proton transfer. Rapid angular hops in concert with small reorientations of the SO4 tetrahedra constitute a new dominant mechanism for hydrogen-bond network reorganization. The SO4 dynamics are found to control the attempt rate of chemical-bond dynamical events and the success rate of hydrogen-bond dynamical events; this enables a novel interpretation of the diminished CsHSO4/CsDSO4 isotope effect.
(cont.) Two distinct timescales for SO4 reorientation events are linked to different diffusion mechanisms along different crystal directions. Finally, a graph-theoretic analysis of the hydrogen-bond network topology demonstrates an increased likelihood for diffusion in connectivity configurations favoring linear network chains over closed rings. We have discovered and characterized a new phase (-y) of the hydrogen-storage material NaAlH4 that is energetically close to the known ground state. The manifestation of this phase is kinetically inhibited in the bulk but is favored in a (001) surface slab above 225 K. The transition involves first activating the surface AlH4 rotational modes. This is followed by a lattice expansion perpendicular to the slab and a shear of successive lattice planes. A possible connection between 7-NaAlH4 and the dehydrogenation product Na3aAH6 is suggested. We also show that hydrogen transport in NaAlH4 can be treated independently from the observed phase transition, and that the presence of certain point defects can enable transport of hydrogen via a structural diffusion mechanism. A link between long-range hydrogen migration and the rotational mobility of A1Hz groups is demonstrated.
by Brandon C. Wood.
Ph.D.
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Zhu, Jiqing. "Storage Stability and Phase Separation Behaviour of Polymer-Modified Bitumen : Characterization and Modelling." Doctoral thesis, KTH, Bro- och stålbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-195089.
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Polymer-modified bitumen (PMB) is a high-performance material for road construction and maintenance. But its storage stability and phase separation behaviour are still not sufficiently understood and need to be studied toward a more successful and sustainable application of PMB. In this thesis, the equilibrium thermodynamics and phase separation dynamics of PMB are investigated with the aim at a fundamental understanding on PMB storage stability and phase separation behaviour. The development of polymer modifiers for paving bitumen is reviewed. The phase separation process in unstable PMBs is captured by fluorescence microscopy at the storage temperature (180 °C). A coupled phase-field model of diffusion and flow is developed to simulate and predict the PMB storage stability and phase separation behaviour. The temperature dependency of PMB phase separation behaviour is modelled by introducing temperature-dependent model parameters between 140 °C and 180 °C. This model is implemented in a finite element software package and calibrated with the experimental observations of real PMBs. The results indicate that storage stability and phase separation behaviour of PMB are strongly dependent on the specific combination of the base bitumen and polymer. An unstable PMB starts to separate into two phases by diffusion, because of the poor polymer-bitumen compatibility. Once the density difference between the two phases becomes sufficiently significant, gravity starts to drive the flow of the two phases and accelerates the separation in the vertical direction. The proposed model, based on the Cahn-Hilliard equation, Flory-Huggins theory and Navier-Stokes equations, is capable of capturing the stability differences among the investigated PMBs and their distinct microstructures at different temperatures. The various material parameters of the PMBs determine the differences in the phase separation behaviour in terms of stability and temperature dependency. The developed model is able to simulate and explain the resulting differences due to the material parameters. The outcome of this study may thus assist in future efforts of ensuring storage stability and sustainable application of PMB.Polymermodifierade bitumen (PMB) är ett högpresterande material för väganläggning och underhåll. Men PMB:s lagringsstabilitet och fassepareringsegenskaper är inte tillräckligt förstådda än och behöver studeras för en mer framgångsrik och hållbar användning av PMB. I denna avhandling studeras termodynamisk jämvikt och fasseparation av PMB med målsättning att uppnå en grundläggande förståelse av PMB:s lagringsstabilitet och fassepareringsegenskaper. Utvecklingen av polymermodifierade bitumen sammanfattas. Fasseparationsprocessen av instabil PMB:s studeras med hjälp av fluorescens mikroskopi vid lagringstemperatur (180 °C). En kopplad fas-fälts modell som beskriver diffusion och flöde har utvecklats för att simulera och förutsäga PMB:s lagringsstabilitet och fassepareringsegenskaper. Temperaturberoendet hos PMB:s fasseparation har beskrivits genom att införa temperaturberoende modellparametrar mellan 140 °C och 180 °C. Denna modell är införd i ett finit element program och kalibrerad med experimentella observationer på verkliga PMB. Resultaten indikerar att lagringsstabiliteten och fasseparationen hos PMB är starkt beroende av den specifika kombinationen av basbitumen och polymer. En instabil PMB börjar separera i två faser genom diffusion, beroende på dålig bitumen-polymer kompatibilitet. När skillnaden i densitet mellan de två faserna blir tillräckligt stor kommer gravitationen att driva flödet av de två faserna och accelerera separationen i vertikalled. Den föreslagna modellen, baserad på Cahn-Hilliards ekvation, Flory-Huggins teori och Navier-Stokes ekvation, kan beskriva stabilitetsskillnaderna mellan de undersökta PMB:erna och deras distinkta mikrostruktur vid olika temperaturer. De olika materialparametrarna hos PMB bestämmer skillnaden i fassepareringsegenskaper i termer av stabilitet och temperaturberoende. Den utvecklade modellen kan simulera och förklara de resulterande skillnaderna på grund av materialparametrarna. Resultatet av denna studie kan bidra till att säkerställa lagringsstabilitet och hållbara applikationer för PMB.
QC 20161102
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Skog, Nestorovic Benjamin, and Douglas Lindén. "Techno-economic analysis of Battery Energy Storage Systems and Demand Side Management for peak load shaving in Swedish industries." Thesis, KTH, Kraft- och värmeteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277824.
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The Swedish electrical grid has historically been robust and reliable, but with increased electrification in numerous sectors, out-phasing of nuclear power and a high market diffusion of wind power, the system is now facing challenges. The rotational energy in the system is expected to decrease as a result of higher shares of intermittent energy sources, which can affect the stability of the grid frequency negatively. To manage increased frequency drops, the new Fast Frequency Reserve (FFR) market will be implemented by June 2020 in the Nordic power system. Simultaneously, it is expected that the demand of electricity will increase significantly in the transport and industry sectors in the coming years. Several DSOs already today indicate challenges with capacity and power security and have or will implement power tariffs as an economic incentive to prevent these problems. For energy intensive customers, such as industries, it will become important to reduce power peaks to avoid high grid fees. Several peak load shaving strategies can be utilized by industries to reduce their power peaks and thus the power tariff. The aim of this study is to economically analyze peak load shaving for Swedish industries. This is done using Li-Ion BESS and DSM, and to maximize the utilization of the BESS by including energy arbitrage and FFR market participation into the analysis. Firstly, a literature review is conducted within the topics of peak load shaving strategies, energy arbitrage and ancillary services. Secondly, data is gathered in collaboration with WSP Systems – Energy, the initiators of the project, to conduct case studies on two different industries. These cases are simulated in the modeling software SAM, for technical analysis, and then economically evaluated with NPV. Also, nine scenarios are created for the emerging FFR market concerning the number of activations per year and the compensation price per activation. The results from the case studies indicate that peak load shaving of 1 – 3 % with BESS provides a positive NPV for both case industries. However, higher percentages result in negative NPVs when no additional revenue streams are included. When considering energy arbitrage, it is concluded that the additional revenues are neglectable for both industries. Participating in the FFR market provides similar trends in the results as before. The exception is valid for scenarios with high numbers of FFR activations and compensation prices, where positive NPVs for all levels of peak load shaving can be concluded. The peak load shaving strategy DSM is implemented for one of the industries, where efficiency measures are concluded to have the most impact on the economic evaluation. If all efficiency measures would be implemented, the electricity consumption would be reduced by 17 %. Additionally, the power peaks would be reduced with 18 % and result in a significantly more positive NPV than peak load shaving using BESS. A sensitivity analysis concerning BESS capital cost and power tariff price concludes that the BESS price has a strong relation to the NPV, where a BESS price reduction of 60 % results in an NPV increase of at least 100 %. BESS prices have decreased the past years and are expected to keep decreasing in the future. Hence, investments in BESS can become more profitable and attractive in the coming years. Finally, for future research, it is recommended to combine the methodology from this study together with a load forecasting method. This combined methodology could then be practically applied to case specific industries with high peak loads.Det svenska elnätet har historiskt sett varit robust och pålitligt, men i takt med ökad elektrifiering i flera sektorer, utfasning av kärnkraft samt ökad mängd installerad vindkraft ställs nu systemet inför nya utmaningar. Bland annat förväntas rotationsenergin i systemet minska som ett resultat av högre andelar intermittenta energikällor i systemet. För att hantera detta kommer den nya Fast Frequency Reserve (FFR) marknaden finnas tillgänglig från och med juni 2020. Samtidigt förväntas även efterfrågan på el inom transport- och industrisektorn öka markant de kommande åren. Redan idag är effektbrist ett problem i vissa regioner, vilket kan komma att förvärras. Många nätägare ska eller har redan infört effekttariffer för utnyttjande av deras elnät, vilket är ett ekonomiskt incitament för att hantera effektproblematiken där kunder med en mer flexibel elkonsumtion kommer gynnas. För större elförbrukare, som exempelvis industrier, kan det bli ekonomiskt betydelsefullt att sänka sina effekttoppar och därmed undvika höga nätavgifter. För att minska effekttoppar finns ett flertal så kallade peak load shaving-strategier, som kan utnyttjas av industrier för att minska kostnaderna för effekttariffen. Syftet med denna studie är att analysera peak load shaving för svenska industrier, med hjälp av ett Li-Ion batterilagringssystem och efterfrågeflexibilitet, samt maximera utnyttjandet av batteriet genom att inkludera energiarbitrage och deltagande i FFR-marknaden i analysen. Ett första steg i arbetet är att utföra en litteraturstudie för de berörda områdena. I ett andra steg insamlas data tillsammans med WSP, initiativtagaren av projektet, för att kunna göra en fallstudie på två industrier. För dessa fallstudier undersöks de tekniska förutsättningarna för att implementera peak load shaving-strategier genom modellering i simuleringsprogrammet SAM. Sedan utreds de ekonomiska förutsättningarna för fallstudierna, där NPV används som ekonomiskt nyckeltal. Dessutom skapas nio scenarion för den kommande FFR-marknaden för att uppskatta kostnader och inkomster. Resultatet av fallstudien visar att 1 – 3 % kapade effekttoppar med batterilagring ger ett positivt NPV för båda industrierna. Över 3 % blir resultatet negativt utan ytterligare inkomstströmmar inkluderade. Energiarbitrage konstateras att bidra med marginella positiva fördelar. Vid inkludering av FFR-marknaden i analysen erhålls liknande trender i resultaten, bortsett från scenarion med relativt högt antal avrop och pris. I dessa fall blir även 4 – 10 % kapade effekttoppar ekonomiskt attraktiva. För en av industrierna utvärderas efterfrågeflexibilitet, där effektivisering av elkrävande processer har störst inflytande på resultatet. Vid implementering av samtliga effektiviseringsåtgärder skulle elkonsumtionen minska med 17 %. Dessutom minskar effekttopparna med 18 %, vilket resulterar i ett signifikant mer positivt NPV, jämfört med användningen av batterilager. En känslighetsanalys gällande batteripris och effekttariffer, konstaterade att batteripriset har en stark påverkan på NPV. Vid en batteriprisminskning på 60 % ökar NPV med minst 100 %. Därmed kan batteriinvesteringar bli mer gynnsamma och attraktiva om batteripriser fortsätter att falla, vilket flera prognoser indikerar. Slutligen rekommenderas framtida studier att kombinera metodiken från detta arbete med en prognostiseringsmetod för elanvändning i industrier. Denna kombinerade metod kan sedan praktiskt tillämpas på fallspecifika industrier med höga effekttoppar.
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Duggal, Niti. "Retail location analysis a case study of Burger King & McDonald's in Portage & Summit Counties, Ohio /." [Kent, Ohio] : Kent State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=kent1196133312.
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Thesis (M.A.)--Kent State University, 2007.Title from PDF t.p. (viewed July 10, 2007). Advisor: Jay Lee. Keywords: Retail Location Analysis; geographic information systems(GIS); Statistical Analysis; Regression Analysis; Geocoding; Catchment Area Analysis; Buffer Polygons; Thiessen Polygons; McDonald's; Burger King; Fast Food Restaurants; Overlay Analysis. Includes bibliographical references (p. 130-151).
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Chandrakar, Shant. "Memory Architecture Template for Fast Block Matching Algorithms on Field Programmable Gate Arrays." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/495.
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Fast Block Matching (FBM) algorithms for video compression are well suited for acceleration using parallel data-path architectures on Field Programmable Gate Arrays (FPGAs). However, designing an efficient on-chip memory subsystem to provide the required throughput to this parallel data-path architecture is a complex problem. This thesis presents a memory architecture template that can be parameterized for a given FBM algorithm, number of parallel Processing Elements (PEs), and block size. The template can be parameterized with well known exploration techniques to design efficient on-chip memory subsystems. The memory subsystems are derived for two existing FBM algorithms and are implemented on a Xilinx Virtex 4 family of FPGAs. Results show that the derived memory subsystem in the best case supports up to 27 more parallel PEs than the three existing subsystems and processes integer pixels in a 1080p video sequence up to a rate of 73 frames per second. The speculative execution of an FBM algorithm for the same number of PEs increases the number of frames processed per second by 49%.
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Ng, Kok Siew. "Decarbonised polygeneration from fossil and biomass resources." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/decarbonised-polygeneration-from-fossil-and-biomass-resources(e3b9e6d2-9716-44ca-b775-0ffe88fb47f1).html.
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Utilisation of biomass resources and CO2 abatement systems in currently exploited fossil resource based energy systems are the key strategies in resolving energy sustainability issue and combating against global climate change. These strategies are affected by high energy penalty and high investment. Therefore, it is imperative to assess the viability of these energy systems and further identify niche problem areas associated with energy efficiency and economic performance improvement. The current research work has two parts. The first part presents techno-economic investigation of thermochemical conversion of biomass into the production of fuels (Fischer-Tropsch liquid or methanol) and electricity. The work encompasses centralised bio-oil integrated gasification plant, assuming that the bio-oil is supplied from distributed pyrolysis plant. Bio-oil is a high energy density liquid derived from biomass fast pyrolysis process, providing advantages in transport and storage. Various bio-oil based integrated gasification system configurations were studied. The configurations were varied based on oxygen supply units, once-through and full conversion configurations and a range of capacities from small to large scale. The second part of this thesis considers integration of various CO2 abatement strategies in coal integrated gasification systems. The CO2 abatement strategies under consideration include CO2 capture and storage, CO2 capture and reuse as well as CO2 reuse from flue gas. These facilities are integrated into cogeneration or polygeneration systems. The cogeneration concept refers to the production of combined heat and power while polygeneration concept is an integrated system converting one or more feedstocks into three or more products. Polygeneration is advocated in this work attributed to its high efficiency and lower emission. Furthermore, it can generate a balanced set of products consisting of fuels, electricity and chemicals. It is regarded as a promising way of addressing the future rapidly growing energy demands. A holistic approach using systematic analytical frameworks comprising simulation modelling, process integration and economic analysis has been developed and adopted consistently throughout the study for the techno-economic performance evaluation of decarbonised fossil and bio-oil based systems. Important design methodology, sensitivity analysis of process parameters and process system modifications are proposed. These are to enhance the efficiency as well as lower the economic and environmental impacts of polygeneration systems. A shortcut methodology has also been developed as a decision-making tool for effective selection from a portfolio of CO2 abatement options and integrated systems. Critical and comprehensive analyses of all the systems under considerations are presented. These embrace the impact of carbon tax, product price evaluation and recommendations for sustainability of low carbon energy systems.
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Shedd, Brian Ethan. "Multifunctional composites for data storage, artificial muscles, and microstructures." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1779690431&sid=15&Fmt=2&clientId=48051&RQT=309&VName=PQD.
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Lé, Tao. "Fundamental insights into dynamic ionic exchange in vertically-oriented nanostructured materials via fast electrogravimetric methods. Applications to energy storage mechanisms." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS202.
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Une meilleure compréhension des mécanismes d’échanges ioniques au sein de matériaux d’électrode de supercondensateurs peut être obtenue en couplant les méthodes de caractérisation électrochimique avec des mesures de microbalance à quartz. Parmi les matériaux d’électrodes en cours de développement, une grande amélioration des performances ont été obtenues avec des nanostructures verticales, cependant la technique de microbalance à quartz électrochimique n’a pas encore été employée sur ce type d’électrodes. L’objectif de cette thèse est d’appliquer les méthodes de caractérisation par microbalance à quartz électrochimique à des électrodes de supercondensateurs nanostructurées verticalement. Les nanostructures étudiées au cours de cette thèse sont les nanofils de silicium, les nanofils de PEDOT, les nanofils hybrides silicium/PEDOT ainsi que les voiles de graphène orientés verticalement (VOGNs). La croissance de ces nanostructures a été obtenue directement sur la surface de la microbalance en minimisant les effets sur la qualité de cette dernière. L’effet de l’amortissement de la résonance par ces nanostructures a été étudié dans différents types d’électrolytes. Les échanges ioniques dynamiques ayant lieu au sein d’électrodes à base de VOGNs et de nanofils de PEDOT ont pu être dévoilés. Ces premières avancées dans l’application des mesures électrogravimétriques à des nanostructures verticales ont montré l’étendue des possibilités pour la caractérisation de supercondensateurs à électrodes nanostructurées. Les limites de ces techniques dues aux amortissements hydrodynamiques ont également été montrées pour les architectures plus épaissesA better understanding of the ionic exchange mechanisms within supercapacitor electrode materials can be obtained by coupling classical electrochemical techniques with microbalance measurements. Using vertically-oriented nanostructures, supercapacitor devices can be greatly enhanced, however microbalance measurements had not yet been performed with such electrodes. The aim of this Ph.D. thesis is to perform electrochemical quartz crystal microbalance measurements on vertically-oriented nanostructured electrodes for supercapacitors. The nanostructured materials studied throughout this work are silicon nanowires, PEDOT nanowires, hybrid PEDOT-silicon nanowires and vertically-oriented graphene nanosheets (VOGNs). The growth of these nanostructures was obtained directly on the surface of a microbalance while minimizing the effects on it’s quality. The effect of resonance damping with the nanostructures was studied in various electrolytes. The ionic exchange dynamics in VOGN and PEDOT nanowires have been unveiled. These first microbalance results on vertically-oriented nanostructures pave the way to characterizing other nanostructured electrodes for supercapacitors
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Rose, Victoria. "The interior features of the Wyoming housepits possible storage features? /." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798966531&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
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Bomma, Triveni. "Performance evaluation of the grid file for data cube storage /." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1559859551&sid=12&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Gasparini, Andrea. "Experimental and numerical modelling of CO2 behaviour in the soil-atmosphere interface : implications far risk assessment of carbon capture storage projects." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/672088.
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CO2 geological storage is considered one of the options technologically viable in order to decrease the industrial emissions of this gas species that strongly contribute to the greenhouse effect in the atmosphere (IPCC, 2005). As naturally, oil and gas are stored in porous rocks that have the same key geological features required for CO2 storage, so CCS aim to recreate a natural process to trap carbon dioxide for millions of years into deep saline aquifer or depleted oil and gas fields. Episodic release of CO2 from underground can occur from either natural processes (i.e., mantle degassing, thermal decarbonation, volcanic areas) or industrial (geological storage of CO2, CCS). Because of leakage can occur at every step of a CCS project, monitoring assumes an important role not only during and after injection but also before in order to know the state of the entire site from deep underground (reservoir level) to surface. In this respect, the use of atmospheric dispersion numerical models helps predicting the dispersion of the CO2-enriched gas plume once emitted from underground and allows an accurate map of risk level through time under particular meteorological conditions. The aim of this PhD. project is to give a better understanding of CO2 behaviour in the unsaturated zone and its atmospheric dispersion. The results are obtained from experimental and numerical modelling of CO2 leakage from an artificial leakage site and from natural analogues applied to risk assessment for CCS sites. To reach the above-mentioned targets and to prove results, this research plan combines experimental activity on site and numerical modelling. The first part of the research plan consisted of a contribution in the PISCO2 project at the ES.CO2 facilities placed in Ponferrada (Spain). The objective of this project was to predict how the injected CO2 will move laterally and vertically in the unsaturated zone and to determine the critical parameters that will affect the ecosystems. This part has been published in a peer review journal and presented in an international congress.
The second part of the PhD. project has focused on the study of two natural analogues in volcanic areas. Natural analogues provide evidences of the impact of CO2 leakage, for both sites two approaches have been followed: a) direct measurement of air concentration and b) numerical atmospheric modelling with the TWODEE2 code. The study of CO2 emissions in natural systems provides a valuable information on the assessment and quantification of potential risks related to underground carbon storage leakage. Emissions of CO2 are studied in a large variety of geological environments, i.e., sedimentary basins, active and non-active volcanic areas, seismically-active regions, and geothermal fields. Because of the physics of carbon dioxide gas, e.g., colourless, odourless, higher density compared to air, its accumulation may result hazardous and even lethal for life. The objective of atmospheric dispersion modelling is to predict how will move the plume, generated by a leakage in natural degassing systems and CCS sites.
Results obtained from this doctorate provide:
•Coupling experimental and numerical data in order to test new methods and/or numerical codes;
•New elements to the knowledge of CO2 behaviours in the unsaturated zone as seen at PISCO2;
•New clues on non-invasive monitoring techniques for CCS sites and natural analogues;
•The usefulness of studying natural analogues;
•The usefulness of the SAP system, as a good method to evaluate high gas emissions from underground;
•The efficiency of atmospheric modelling as a valuable methodology in the risk assessment;
•The importance of risk assessment maps in active degassing areas;
•The need of production of forecasting maps to evaluate dangerous scenarios.
•Numerical models (multiphase transport and atmospheric gas dispersion) are proved to be useful tools to predict gas behaviour inthe vadose zone and in the near-ground atmosphere.El almacenamiento geológico de CO2 se considera una de las opciones tecnológicamente viables para disminuir las emisiones industriales de esta especie de gas que contribuye fuertemente al efecto invernadero en la atmósfera (IPCC. 2005). Como es natural, el petróleo y el gas se almacenan en rocas porosas que tienen las mismas características geológicas clave requeridas para el almacenamiento de CO2. por lo que CCS tiene como objetivo recrear un proceso natural para atrapar dióxido de carbono durante millones de años en un acuífero salino profundo o en campos de petróleo y gas agotados. La liberación episódica de CO2 del subsuelo puede ocurrir por procesos naturales (es decir. desgasificación del manto, descarbonatación térmica. áreas volcánicas) o industriales (almacenamiento geológico de CO2. CCS). Debido a que las fugas pueden ocurrir en cada paso de un proyecto de CCS. el monitoreo asume un papel importante no solo durante y después de la inyección. sino también antes para conocer el estado de todo el sitio desde las profundidades del subsuelo (nivel del yacimiento) hasta la superficie. En este sentido. el uso de modelos numéricos de dispersión atmosférica ayuda a predecir la dispersión de la columna de gas enriquecido con CO2 una vez emitida desde el subsuelo y permite un mapa preciso del nivel de riesgo a lo largo del tiempo bajo condiciones meteorológicas particulares. El objetivo de este proyecto de doctorado consiste en dar una mejor comprensión del comportamiento del CO2 en la zona insaturada y su dispersión atmosférica. Los resultados se obtienen a partir de modelos experimentales y numéricos de fugas de CO2 de un sitio de fugas artificiales y de análogos naturales aplicados a la evaluación de riesgos para sitios de CCS. Para alcanzar los objetivos antes mencionados y probar los resultados. este plan de investigación combina la actividad experimental en el sitio y la modelización numérica. La primera parte del plan de investigación consistió en una aportación al proyecto PISCO2 en las instalaciones de ES.CO2 situadas en Ponferrada (España). El objetivo de este proyecto fue predecir cómo el CO2 inyectado se moverá lateralmente y verticalmente en la zona insaturada y determinar los parámetros críticos que afectarán los ecosistemas. Esta parte ha sido publicada en una revista de revisión por pares y presentada en un congreso internacional. La segunda parte del proyecto de doctorado se ha centrado en el estudio de dos análogos naturales en áreas volcánicas. Los análogos naturales proporcionan evidencias del impacto de la fuga de CO2. para ambos sitios se han seguido dos enfoques: a) medición directa de la concentración de aire y b) modelado atmosférico numérico con el código TW ODEE2. El estudio de las emisiones de CO2 en los sistemas naturales proporciona una valiosa información sobre la evaluación y cuantificación de los riesgos potenciales relacionados con las fugas de almacenamiento subterráneo de carbono. Las emisiones de CO2 se estudian en una gran variedad de entornos geológicos, es decir, cuencas sedimentarias, áreas volcánicas activas y no activas, regiones sísmicas y campos geotérmicos. Los resultados obtenidos de este doctorado aportan: • Acoplamiento de datos experimentales y numéricos para probar nuevos métodos y/o códigos numéricos; • Nuevos elementos para el conocimiento de los comportamientos del CO2 en la zona insaturada como se ve en PISCO2; • Nuevas pistas sobre técnicas de monitoreo no invasivas para sitios CCS y análogos naturales; • La utilidad de estudiar análogos naturales; • La utilidad del sistema SAP, como buen método para evaluar altas emisiones de gases subterráneos; • La eficiencia de la modelización atmosférica como metodología valiosa en la evaluación de riesgos ; • La importancia de los mapas de evaluación de riesgos en áreas de desgasificación activa; • La necesidad de producir mapas de predicción para evaluar escenarios peligrosos. • Se ha demostrado que los modelos numéricos (transporte multifásico y dispersión de gas atmosférico) son herramientas útiles para predecir el comportamiento de los gases en la zona vadosa y en la atmósfera cercana al suelo.
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Yu, Xiaoguang. "The efficient storage structure for data cube : a grid file approach /." Available to subscribers only, 2005. http://proquest.umi.com/pqdweb?did=1083544081&sid=2&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Miles, Joseph A. "Large fabric storage area networks fabric simulator development and preliminary analysis /." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798480901&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
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Langston, Jeremy W. "Availability and performance analysis of data hot-spots in distributed storage systems a thesis presented to the faculty of the Graduate School, Tennessee Technological University /." Click to access online, 2009. http://proquest.umi.com/pqdweb?index=0&did=1797609571&SrchMode=1&sid=2&Fmt=6&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1268408220&clientId=28564.
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Yu, Jiamei. "DFT study of hydrogen storage in complex hydrides doped with transition metals." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1879993751&sid=7&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Randau, Emma, and Frida Tordsson. "Är detaljhandlarna fast i det förflutna? : En fallstudie av IKEAs köksavdelning." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-23980.
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Konsumenters beteende har förändrats och i dag söker kunder inte efter produktrelaterad information enbart i den fysiska butiken inför att de ska genomföra ett komplext köp. Teknisk utveckling och butiker online har möjliggjort för konsumenten att söka information var och när de vill. Detta har lett till att konsumenter är mer informerade än någonsin. Denna förändring av konsumentbeteende är viktigt att studera eftersom företag måste förstå sina konsumenter för att skapa hållbara affärsmodeller och strategier. Därför syftar vår studie till att skapa en större förståelse för detta förändrade konsumentbeteende och hur det påverkar den fysiska butikens roll när konsumenten förbereder sig inför ett komplext köp. Studien är design är en fallstudie av IKEA:s köksavdelning. Vår intention var att förstå viktiga aspekter av konsumentens förberedelse, informationssökning och beteende inför ett komplext köp. För att få en större förståelse för om den fysiska butikens roll har förändrats användes en mixad metod. Detta studerades genom observationer, enkäter och intervjuer. Genom att använda eye-tracking utrustning under observationerna kunde vi studera respondenternas beteende mer djupgående än vad tidigare studier gjort. Vilket resulterade i att studiens slutsats är att den fysiska butiken fortfarande har en viktig roll när konsumenten förbereder sig inför ett komplext köp. Framförallt förser butiken konsumenter med möjligheten att känna på produkten, samt att ge dem ett helhetsintryck av vad de ska köpa. Vår huvudsakliga slutsats blev därför att den fysiska butikens roll inför ett komplext köp är att vara ett komplement till den information som finns tillgänglig online genom att möjliggöra för konsumenten att interagera med produkterna i en verklig butiksmiljö.Consumer behaviour has changed, today consumers do not solely search for information in the physical store prior to a complex purchase. Technological development and online stores have enabled consumers to search for information whenever and wherever they want. This has led to consumers being more informed than ever. The change and development of consumer behaviour is an important research subject, as companies must understand their consumers in order to create the best business strategies and business models possible. Therefore, is the aim of this thesis to gain a deeper understanding of this changed consumer behaviour and if the physical store might have a different role during consumer preparation prior to a complex purchase.The design used was a case study of IKEA’s kitchen department. Our intention was to understand important aspects of consumer preparation, information search and behaviour prior to a complex purchase. Therefore, was a mixed method strategy was used, which allowed us to understand if the role of the physical store has changed during consumer preparation prior to a complex purchase. This was studied through observations, questionnaire and interviews. Due to the usage of eye-tracking technology during the observation, we could study the respondent’s behaviour more in detail than previous research has done. The conclusion of the study is that the physical store still has an important role when consumers purchase complex products. Foremost, due to consumers’ having a great need to touch and feel the product, and to gain the whole picture of what they intend to purchase. Therefore, was the main conclusion that the role of the physical store prior to a complex purchase is to complement the information available online, by enabling consumers to interact with the products in a real world environment.
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Ghosh, Nilanshu. "Techno-economic analysis of retrofitting existing fuel stations with DC fast chargers along with solar PV and energy storage with load flow analysis." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284460.
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The increasing number of electric vehicles (EVs) in the transport sector has rendered the conventional fuel-based vehicles obsolete along with the fuel filling stations. With the growth in EVs, there has been an increase in the public charging infrastructure with fast charging equipment being used to charge the EVs in least possible time and also address the issue of ‘range anxiety’ among the EV owners. Many countries like South Korea and Germany has seen policies being implemented to install fast chargers for EVs in existing fuel filling stations. This study aims conduct a techno-economic feasibility to analyse the potential of implementing Electric Vehicle Supply Equipment (EVSE) with fast charging capacity into existing fuel filling stations. The potential of using solar photovoltaic system (PV) and battery storage systems (BESS) to reduce the load from the grid is also explored. Scenarios are developed considering different configurations of the EVSE, PV and BESS and an in-depth economic analysis is conducted to analyse the economic feasibility of the configurations. The impact on the electricity grid is also analysed in this thesis by conducting a load flow analysis on the CIGRE Low voltage network for Europe using Python.The proposed design enables selection of techno-economically feasible configurations of EVSE, BESS and PV. The results of the design are explained with the UK as a case study. It is observed that the configurations with 3 EVSE, BESS and 8 hours and the configuration with 3 EVSE, 1 BESS and 1 PV system for 8 hours of operation are economically viable. The proposed design shows that though the connection cost is the dominant factor affecting the feasibility, use of BESS with or without PV can reduce the connection cost by almost 90% depending on the number of BESS. Load flow analysis is conducted for the different configurations of EVSE, BESS and PV on the CIGRE LV network on Pandapower in Python. The results indicate that the existing network needs to be reinforced to facilitate the connection of EV fast chargers into the grid. Upgrading the network cables and increasing the slack voltage to a value of 1.05 or 1.1 Volts per unit, are the two strategies that have been suggested in this study to prevent any undervoltage that may occur as a result of connecting the EVSE to the electricity grid. The simulations conducted for the two strategies highlight that by implementing these strategies into the electricity grid network, the undervoltage issues in the transmission network can be mitigated.Det ökande antalet elfordon inom transportsektorn har gjort de konventionella bränslebaserade fordonen föråldrade tillsammans med bränslepåfyllningsstationerna. Med ökningen av elbilar har det skett en ökning av den offentliga laddningsinfrastrukturen med snabbladdningsutrustning som används för att ladda elbilarna på åtminstone möjlig tid och också ta itu med frågan om ’range anxiety’ bland elägare. Många länder som Sydkorea och Tyskland har sett politik införas för att installera snabbladdare för elbilar i befintliga bensinstationer. Denna studie syftar till att genomföra en teknisk-ekonomisk genomförbarhet för att analysera potentialen för att implementera elfordonstillförselutrustning (EVSE) med snabb laddningskapacitet i befintliga bensinstationer. Potentialen med att använda solcellssystem (PV) och batterilagringssystem (BESS) för att minska belastningen från nätet undersöks också. Scenarier utvecklas med beaktande av olika konfigurationer av EVSE, PV och BESS och en djupgående ekonomisk analys genomförs för att analysera konfigurationernas ekonomiska genomförbarhet. Effekten på elnätet analyseras också i denna avhandling genom att genomföra en belastningsflödesanalys på CIGRE lågspänningsnät för Europa med Python.Den föreslagna designen möjliggör val av tekno-ekonomiskt genomförbara konfigurationer av EVSE, BESS och PV. Resultaten av designen förklaras med Storbritannien som en fallstudie. Det observeras att konfigurationerna med 3 EVSE, BESS och 8 timmar och konfigurationen med 3 EVSE, 1 BESS och 1 PV-system för 8 timmars drift är ekonomiskt lönsamma. Den föreslagna designen visar att även om anslutningskostnaden är den dominerande faktorn som påverkar genomförbarheten, kan användning av BESS med eller utan solceller minska anslutningskostnaden med nästan 90% beroende på antalet BESS. Lastflödesanalys utförs för de olika konfigurationerna av EVSE, BESS och PV på CIGRE LV-nätverket på Pandapower i Python. Resultaten visar att det befintliga nätverket måste förstärkas för att underlätta anslutningen av EV-snabbladdare till nätet. Uppgradering av nätverkskablarna och ökning av spänningen till 1,05 eller 1,1 volt per enhet är de två strategier som har föreslagits i denna studie för att förhindra underspänning som kan uppstå till följd av att EVSE ansluts till elnätet. Simuleringarna för de två strategierna lyfter fram att genom att implementera dessa strategier i elnätet kan underspänningsfrågorna i överföringsnätet mildras.