Academic literature on the topic 'Vind energi'
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Journal articles on the topic "Vind energi"
Allen, Andy. "Getting energy from the vine." Renewable Energy Focus 10, no. 6 (November 2009): 74–79. http://dx.doi.org/10.1016/s1755-0084(09)70241-8.
Full textSantoso, Broto. "3D-MOLECULAR SCREENING OF DIKETOPIPERAZINE DERIVATES ON Staphylococcus aureus DEHYDROSQUALENE SYNTHASE USING VINA." Pharmacon: Jurnal Farmasi Indonesia 13, no. 1 (January 27, 2015): 24–29. http://dx.doi.org/10.23917/pharmacon.v13i1.23.
Full textTanisa, Asti Anna, and Rezi Riadhi. "VIRTUAL SCREENING OF BETA-SECRETASE 1 (BACE1) INHIBITORS IN THE INDONESIAN HERBAL DATABASE AS USING AUTODOCK AND AUTODOCK VINA." Asian Journal of Pharmaceutical and Clinical Research 10, no. 17 (October 1, 2017): 148. http://dx.doi.org/10.22159/ajpcr.2017.v10s5.23119.
Full textSENE, K. "Parameterisations for energy transfers from a sparse vine crop." Agricultural and Forest Meteorology 71, no. 1-2 (October 1994): 1–18. http://dx.doi.org/10.1016/0168-1923(94)90097-3.
Full textThi Mai Khanh, Nguyen. "Tra Vinh University and strategies heading to green campus." E3S Web of Conferences 48 (2018): 05006. http://dx.doi.org/10.1051/e3sconf/20184805006.
Full textZhang, Pan, Meng Cao, Jian Li, Yan Lin, Zhengfeng Fang, Lianqiang Che, Bin Feng, et al. "Effect of Sweet Potato Vine on the Onset of Puberty and Follicle Development in Chinese Meishan Gilts." Animals 9, no. 6 (May 30, 2019): 297. http://dx.doi.org/10.3390/ani9060297.
Full textSantoso, Broto. "DOCKING ANALOG KURKUMIN TURUNAN PIPERAZINDION DENGAN TUBULIN (1TUB) RANTAI MENGGUNAKAN VINA DAN AUTODOCK1." Pharmacon: Jurnal Farmasi Indonesia 12, no. 1 (January 31, 2015): 14–18. http://dx.doi.org/10.23917/pharmacon.v12i1.43.
Full textNunes, Leonel J. R., Liliana M. E. F. Loureiro, Letícia C. R. Sá, João C. O. Matias, Ana I. O. F. Ferraz, and Ana C. P. B. Rodrigues. "Energy Recovery of Agricultural Residues: Incorporation of Vine Pruning in the Production of Biomass Pellets with ENplus® Certification." Recycling 6, no. 2 (April 22, 2021): 28. http://dx.doi.org/10.3390/recycling6020028.
Full textZhu, Y., C. S. Bai, X. S. Guo, Y. L. Xue, and Kazuo Ataku. "Nutritive value of corn silage in mixture with vine peas." Animal Production Science 51, no. 12 (2011): 1117. http://dx.doi.org/10.1071/an11125.
Full textAziz, Fitri Kusvila, Cantika Nukitasari, Fauziyah Ardli Oktavianingrum, Lita Windy Aryati, and Broto Santoso. "Hasil In Silico Senyawa Z12501572, Z00321025, SCB5631028 dan SCB13970547 dibandingkan Turunan Zerumbon terhadap Human Liver Glycogen Phosphorylase (1l5Q) sebagai Antidiabetes." Jurnal Kimia VALENSI 2, no. 2 (November 30, 2016): 120–24. http://dx.doi.org/10.15408/jkv.v2i2.4170.
Full textDissertations / Theses on the topic "Vind energi"
Lenner, Oskar. "Småskalig elproduktion : Förstudie på hur ett bostadshus kan bli mer självförsörjande och utvinna energi från sol och vind." Thesis, Mittuniversitetet, Institutionen för kemiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39317.
Full textThe purpose of this thesis has been to examine how to reduce the need to buy energy for a property with associated buildings. The focus has been on producing enough energy to cover the property owners' consumption of electricity. The project has also involved simpler energy optimization measures. After this, a physical review of the buildings was carried out, where measurement was also carried out partly as a basis for an energy balance and partly as a basis when examining which energy saving measures were economically feasible, such as additional insulation of the wind. Then quotes and other important information, such as energy production and prices, were collected and then analyzed. All parts were compared to each other to arrive at what best suited the property owners. Storage and wind power had too long a payback period against what the owners had asked for when they wanted it to be repaid before the end of product life. The result of the wind power showed that the wind speeds could not be fully determined since the wind measurement made was 25 km away, which leads to an uncertainty in how much electricity can be produced. The most profitable was the largest of the four solar cell parks compared. It and the small wind turbine together produce enough electricity to meet their needs. However, neither the wind turbine nor the battery storage was recommended because of the payback time. The owners can thus produce most of the electricity using solar cells, but not all according to the calculations made. In addition to Vattenfall's solar cells, it was recommended to insulate the wind and install a charging box from Vattenfall. Since the theory in the degree project should be based on audited sources and not on profit-making sources, student literature, published reports and reports from authorities were used.
Augustsson, Adam. "Reindeer Husbandry and Wind Power : Discourses surrounding the construction of IKEA's wind park on Glötesvålen and its local effects on reindeer husbandry." Thesis, Malmö universitet, Malmö högskola, Institutionen för Urbana Studier (US), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-42460.
Full textExploateringen av mark i norra Sverige har orsakat en betydande förlust av betesmarker för renskötare. Detta hotar den svensk-samiska rennäringen, som förlitar sig på betesmarken för att hållbart mata sina hjordar. Under det senaste decenniet har en betydande mängd betesmark gått förlorad på grund av den ökande mängden vindkraftsparker (WPP) på, eller intillrenbetesmarker. Denna avhandling undersöker diskursen kring en WPP byggd i Härjedalen för IKEA. WPP byggdes på Glötesvålen, ett låg-fjäll som tidigare haft strategiskt viktiga betesmarker för samebyn Mittådalen. Genom en dissektion av elektroniska källor och halvstrukturerade intervjuer genomför författaren en diskursanalys för att identifiera de vanligaste narrativen om IKEAs vindkraftpark på Glötesvålen. En induktiv metod används för att identifiera underliggande ideologier som finns i diskursen genom ett relevant teoretisk ramverk. Resultaten visar en genomgripande entusiasm för vindkraft som ett steg mot förnybar energi. Detta narrativ speglar ideologin för ekologisk modernisering. Resultaten hittar också ett kritisk narrativ som lyfter den ojämna maktdynamiken som renskötarna upplever. Detta förstås genom Spivaks (2010) "Kan den underordnade tala?". Ytterligare en diskurs som upptäcks är symbolfrågan mellan industriell ekologisk omställning och bevarandet av renskötseln som kulturarv.
Alkeaid, Majed Mohammed G. "Study of NEOM city renewable energy mix and balance problem." Thesis, KTH, Elkraftteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235535.
Full textDet är viktigt för NEOM projektets ledning att planera och införa projektet med hjälp av förnybara energiresurser på plats. Regionen är rymligt och stort och är en lämplig plats för att kunna generera tillräcklig med energi från sol och vind för energiförsörjning av området. Syftet med studien är att studera en pågående planering och byggnation av en hållbar stad med upp till 10 GW förnybar energi som motsvarar cirka 80 000 fat fossil bränsle. Problem och utmaningar för att försörja en hel stad med förnybara energiresurser kommer att diskuteras. Den förnybara staden förväntas vara ett föredöme för 100% förnybar energi, vilket i kapacitetssammanhang motsvarar 72:4GW, vilket är mer tillräckligt än behovet för NEOM staden. Freiburg och Masdar städer används som fallstudier i examensarbetet. NEOMs kraftproduktionskapacitet kan täcka behovet av hela landet som uppgår till 71GW. Studien visar att den totala kraftproduktionskapaciteten från olika förnybara energiresurser såsom vindkraftparker, tidvattenanläggningar, solcellkraftverk och soltornskraftverk med en kapacitet av 9:1373GW,4:76GW, 57:398GW och 1:11GW respektive kan uppgå till 72:4GW. Saudiarabien har planer på att skaffa 16 kärnkraftverk (17GW vardera) med en total kapacitet på 272GW som kommer att ingå i Saudiarabiens nationella satsningar för framtidens elproduktion och det kan täcka elbehovet om NEOM inte når efterfrågekapaciteten. Utöver ovan har studien föreslagit 6 underjordiska batterier med en kapacitet på 120MW per batteri. Studieresultaten kan användas för kompetensuppbyggnad och vidare forskning om förnybara energiresurser för NEOM Institute of Science and Technology. Resultaten kan också användas för teknikutveckling och forskning inom HVDC- överföringsledningar mellan NEOM, Saudiarabiens huvudnät, Egypten och Jordanien.
Karlsson, Jennifer. "Energitekniska alternativ vid ansträngd eleffekt." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79586.
Full textEriksson, Linda. "Energieffektiv byggnad genom proaktivt energiarbete vid byggprojektering : Projekteringsledarens roll." Thesis, Mittuniversitetet, Institutionen för kemiteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42453.
Full textNörve, Joakim. "Mätning av energianvändning vid pelletstillverkning : En experimentell undersökning av olika delprocesser inom pelletstillverkning." Thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-85520.
Full textThe world’s reliance on fossil fuels needs to be reduced to prevent global warming, which can have a negative effect on our environment. One way which can reduce our impact is to increase our usage of biofuels. Pelletisation is used to get an effective energy output from biofuels, since it increases the density of the biomass. Industrial pelletisation is consists of multiple processes: Drying, grinding, moisturising, heating, and lastly pelletising. The total energy (Wtot) from pelletisation comes from three phases: Compression, flow, and friction. The compression-energy (Wkomp) measures the vertical force against the biomass when it is pelletised. The flow-energy (Wflöde) measures the resistance against deformation when the biomass enters the die-channel. This deformation is caused by radial and vertical compression. The friction-energy (Wfric) measures the resistance from the contact between the die-surface and pellet. The purpose of this study is to increase the knowledge regarding energy usage from the pelletisation processes, and to find a correlation between laboratory scale (20 kg/h) and continuous single pelletisation. The goal of the study is to examine the impact moisture content and die-channel length has on the different phases, and how they impact the flow force. Spruce dried, ground, and moisturised to a specific moisture content before pelletisation. Three applications were used, which purpose was to measure the different phases of pelletisation. The total energy is measure with continuous single-pelletisation, which means that you first compress a layer of biomass, which is followed by compressing another layer on top. New layers are then compressed until the flow-force has stabilised (the maximum force measured during a layer-compression). To measure compression and friction, a gram of biomass is compressed which is then pressed out of the die-channel. The last application was a laboratory scale press, where friction and flow-force can be measured. The results showed that the length of the die-channel had a great impact on all phases when studying continuous single-pelletisation. An increase in the channel length increases Wtot, Wkomp, Wfrik, and Wflöde. The moisture content’s effect on the phases were mixed. There was no correlation between moisture content and friction. The clearest correlation was between moisture content and compression. An increase in moisture content causes a lower Wkomp. The flow-energy was not affected when the moisture content was raised from 8% to 12%, but an increase from 12% to 16% reduced Wflöde greatly. The flow-force never stabilised when a moisture content of 8% was used. The flow-force stabilised at a moisture content level of 12% and 16%, whereof 16% resulted in a lower force required for stabilisation. A correlation between continuous single-pelletisation and laboratory pelletisation were never found.
Andersson, Robin. "Utredning av slaggning vid förbränning av träpellets i värmeanläggningar : I sammarbete med Härjeåns Energi AB." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-137482.
Full textAbstract The member states of the UN have united behind a convention on climate change 2015, the “Paris agreement”. To face the challenges of a required conversion to renewable energy, the dependence of fossil fuels need to be drastically reduced. Combustion of biomass has a god potential to replace fossil fuels in many applications. Pellets made from stemwood has a high energy value and is a good candidate to replace fossil fuels in small and medium scale heat and power production. To make pellets more attractive on the market, the delivered pellets need to have high quality and enable low maintenance and operational problems during combustion. Härjeåns Energi in Sveg would like to know more about the ash related issues like slagging and sintering, and how it can be avoided be measures related to handling, pellet production and end use (combustion). The overall objectives of the present work was to identify ash related problems during combustion of wood pellets in heating boilers, focusing on sintering and slagging, and to provide recommendations on measures how to avoid such problems for producers and individuals. This work with the report was divided into two parts. The first part included a research review on the subject. The second part included an investigation of the handling by Härjeåns Energi and their subcontractors. The research review was carried out by reading the research, mainly in scientific peer- review papers from the last 25 years. The investigation of the handling was carried out by evaluating analysis data of pellets, raw material and slagg samples. The results showed that the most important factor that influence slag formation is the concentrations of certain ash forming elements in fuel, such as silicon, potassium, calcium, sodium, magnesium aluminum and iron. Also ash content, combustion technology and combustion temperature are of importance. Substances in the fuels that are associated with slagging tendencies originate mainly from different kinds of contaminations, e.g. sand, soil and clay. This is most likely the case for Härjeåns Energi. The results also showed that the ash fusion temperatures of the raw material ash where constantly high during the weeks of the summer 2016. The remaining weeks of the year showed more varying ash melting temperatures. The produced pellets from Härjeåns Energi 2016 had a high ash molting temperature during the year of 2016, except in October. The exact reason behind the relative low ash melting temperatures is difficult to point out specifically in this work, and need more careful investigations. Overall, it is the pellets producer, the subcontractors and the manufacturer of the heating devices that have the possibilities to develop product and measures which avoid or reduces slagging related problems. The end users (customers) have very small opportunities to influence the outcome of the combustion of pellets.
Strandgren, Rasmus. "Projektering av Fjärrvärmeinstallation vid ”Alimak group AB”s anläggning i Skellefteå." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74907.
Full textThe current energy usage worldwide is playing a central part in polluting the atmosphere and accelerating climate change. Intelligent technical solutions coupled with new behavioral patterns are our best tools to battle climate change and minimize our impact on the planet. Amongst these innovations and changes to our lifestyle, a central part is our usage of fossil fuels, of which usage is being restricted by governments worldwide, commonly via taxes. This forces us to reinvent ourselves and search for other options where we can, to minimize both our costs and our emissions of greenhouse gases. Alimak in Skellefteå is currently finding themselves in a similar situation, and therefore requested a proposal for a new heating system on one of their properties to be delivered by Caverion via this report. The task at hand was to investigate the viability of changing out their current heating sources, three oil-furnaces to a new district heating powered system, and come up with a concrete proposal for a solution, and evaluate the economical profitability. Through a broad study of literature on the subject and several trips to the property to examine it, the heating power required to maintain an arbitrary indoor climate was calculated, with respect to the buildings shell, ventilation and infiltration. With this accomplished an entirely new heating system could be dimensioned to fit the property based on the given conditions. With this all done, the buildings annual energy consumption could be calculated and from that the theoretical operational costs emerged, to be compared with the oil-furnaces of today. The results of it all, is a proposal for a complete new heating package including fan-heaters, piping, control system and district heating substation. Amounting to an investment of 555 000 SEK, the system is deemed adequate to maintain a comfortable climate and circulate the warm air throughout the entirety of the rooms wherein the heaters are placed, and provide a sufficient margin of power given the uncertainties within the calculations. The investment turns out to lower the operational costs significantly, and an estimated 380-480 000 SEK will be saved annually depending on which of the options are chosen. Furthermore since this means that none of the oil-furnaces will remain, all the carbon dioxide emissions associated with heating the building are eliminated, previously amounting to a rough 244 tons annually in previous years. Needless to say this is a phenomenal gain for the environment. In addition to these main advantages of the proposal, there is also the completely enhanced level of operational reliability, controllability and overview of the plant that has previously not been available. With modern technology, the entire heating system can be controlled centrally and automatically and together with the proposed ventilation system the entire operation of building can be run fully automatically.
Thomasson, Jakob, and Nathalie Johansson. "Skogsägares attityder till uttag av grot vid slutavverkning i södra Sverige." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-53704.
Full textForests have been used as an energy source for a long time. By taking advantage of logging residues at final harvesting, the forest owners contribute with renewable energy that reduces dependence of fossil fuels. This study concerns the attitudes regarding the collection of logging residues. The study was conducted as a survey which was answered by forest owners and employees that work with counseling regarding forestry. The survey shows that the major obstacles that gives negative attitudes of logging residues is the concern about the nutrient removal from the forest and damage dealt by machinery. The study demonstrates the importance of knowledge, and the needs to increase the forest owners knowledge about logging residues and its effects. A change of attitude concerning logging residues is needed to secure the future collection of logging residues. The impact that attitudes can give is that there will be insufficient quantities of logging residues in the future.
Strömberg, Mårten. "SHE Management vid Perstorp Regeno, Sektor Energi." Thesis, KTH, Industriell ekologi, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-32780.
Full textwww.ima.kth.se
Books on the topic "Vind energi"
Hallin, P. O. Tid för omställning: Om hushållsanpassningsstrategier vid en förändrad energisituation. Lund, Sweden: Lund University Press, 1988.
Find full textUkraine. Ministerstvo palyva ta enerhetyky. Informat︠s︡iĭni materialy do zasidanni︠a︡ kolehiï Minpalyvenerho Ukraïny vid 23.03.2002 z pytanni︠a︡ "Pro pidsumky roboty palyvno-enerhetychnoho kompleksu za 2001 rik ta zavdanni︠a︡ na 2002 rik". Kyïv]: Minpalyvenerho, 2002.
Find full textAit. VID Energy Stdt Prog, Inter in Sci/Societ. Delmar Publishers, 1997.
Find full textBook chapters on the topic "Vind energi"
Ortiz-Canavate, J., and J. Gil. "Vine, Olive and Orange Trees Residues Mechanization Chains in Spain." In Biomass Energy, 247–55. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-011-7879-2_33.
Full textBoonyanuphong, Phattanan, and Songsak Sriboonchitta. "An Analysis of Interdependencies among Energy, Biofuel, and Agricultural Markets Using Vine Copula Model." In Modeling Dependence in Econometrics, 415–29. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03395-2_26.
Full textZhou, Yefan, Jianxu Liu, Jirakom Sirisrisakulchai, and Songsak Sriboonchitta. "Measurements of the Conditional Dependence Structure Among Carbon, Fossil Energy and Renewable Energy Prices: Vine Copula Based GJR-GARCH Model." In Lecture Notes in Computer Science, 322–34. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62509-2_27.
Full text"Økær Vind Energi—Standard Blades for the Early Wind Industry." In Wind Power for the World, 281–98. Jenny Stanford Publishing, 2013. http://dx.doi.org/10.1201/b15010-13.
Full textWhite, Robert E. "Soil–Water–Vine Relationships and Water Management." In Soils for Fine Wines. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195141023.003.0008.
Full textFuller, R. J., D. R. Kaye, and M. J. Schache. "IMPROVED TECHNOLOGY FOR SOLAR DRYING OF VINE FRUITS." In Advances In Solar Energy Technology, 1488–92. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-08-034315-0.50289-5.
Full textGouvinhas, Irene, and Ana Barros. "Winery By-Products as Source of Bioactive Compounds for Pharmaceutical and Cosmetic Industries." In Innovation in the Food Sector Through the Valorization of Food and Agro-Food By-Products. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97881.
Full textDalton, David R. "The Light on the Leaves." In The Chemistry of Wine. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190687199.003.0017.
Full textConference papers on the topic "Vind energi"
She, Xiaohe, and Jingfang Wu. "Application of Vine Copula in Multi-market Dependence Research." In 2017 2nd International Conference on Materials Science, Machinery and Energy Engineering (MSMEE 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/msmee-17.2017.275.
Full textXu, Yijun, Kiran Karra, Lamine Mili, Mert Korkali, Xiao Chen, and Zhixiong Hu. "Probabilistic Load-Margin Assessment using Vine Copula and Gaussian Process Emulation." In 2020 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2020. http://dx.doi.org/10.1109/pesgm41954.2020.9281551.
Full textSun, Mingyang, Ioannis Konstantelos, and Goran Strbac. "C-Vine copula mixture model for clustering of residential electrical load pattern data." In 2017 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2017. http://dx.doi.org/10.1109/pesgm.2017.8274202.
Full textTenu, Ioan, Radu Rosca, Petru Carlescu, Cecilia Roman, Lacrimioara Ramona Senila, Vlad Arsenoaia, Dumitrache Emanuil, Baetu Marius, and Oana-Raluca Corduneanu. "Researches regarding evaluation of energy consumption for manufacturing of pellets from vine pruning residues." In 19th International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering, 2020. http://dx.doi.org/10.22616/erdev.2020.19.tf013.
Full textRajha, Hiba N., Nagham Abou Jaoude, Nicolas Louka, Richard G. Maroun, and Eugene Vorobiev. "Industrial byproducts valorization through energy saving processes. Alkaline extraction of polyphenols from vine shoots." In 2014 International Conference on Renewable Energies for Developing Countries (REDEC). IEEE, 2014. http://dx.doi.org/10.1109/redec.2014.7038537.
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