Dissertations / Theses on the topic 'Development of alternative energy'
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Alias, Naser Ibraheem. "Alternative energy to ensure sustainable development." Thesis, Вид-во СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/8071.
Full textПімоненко, Тетяна Володимирівна, Татьяна Владимировна Пимоненко, Tetiana Volodymyrivna Pimonenko, and S. O. Vostotskyy. "Prospects for development of alternative." Thesis, Sumy State University, 2014. http://essuir.sumdu.edu.ua/handle/123456789/36159.
Full textWen, Zheming. "Research and development in novel alternative renewable energy technology." Thesis, Bournemouth University, 2016. http://eprints.bournemouth.ac.uk/25047/.
Full textVakulenko, I., Алла Миколаївна Дядечко, Алла Николаевна Дядечко, and Alla Mykolaivna Diadechko. "Zonal approach to the development of alternative energy in Ukraine." Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/25953.
Full textSwanson, Peter Thomas. "Development of a portable laboratory facility to demonstrate alternative energy technologies." [Ames, Iowa : Iowa State University], 2007.
Find full textGhearing, Garth Ross. "ETSU GearUp: The Design and Development of an Alternative Energy Greenhouse." Digital Commons @ East Tennessee State University, 2008. https://dc.etsu.edu/etd/1961.
Full textHOLZBAUR, U., and L. J. BARNARD. "Sustainability with biogas as a form of alternative energy." Interim : Interdisciplinary Journal, Vol 13, Issue 2: Central University of Technology Free State Bloemfontein, 2013. http://hdl.handle.net/11462/298.
Full textThe vision of CUT as a sustainable university is to become a teaching, research and learning environment which maximizes and mainstreams environmental, economic and social sustainability in all its operations and educational activities. In driving this process, the university established a Sustainable Development Project to facilitate, oversee and report on the roll-out of this project.
Wallin, Micah R. "China’s Wind Energy Development and Prediction." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275450139.
Full textJämting, Hanna. "Sustainable Energy : Implications of Charcoal Use in Babati Households & Possibilities to Use Alternative Energy Sources." Thesis, Södertörn University College, School of Life Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-2160.
Full textThis thesis investigates social impacts of charcoal use in households in the Tanzanian town Babati. In Tanzania a majority of the population use charcoal and firewood as their main energy source. A part from the environmental problems connected to charcoal use; there are also considerable social impacts on women’s daily lives. Cooking and collection of wood fuel are time-consuming and restricts the possibilities for women to work and study. The thesis includes an investigation on how the Tanzanian government tackles problems connected to charcoal use, social as well as environmental. The result shows that the Tanzanian government is working with charcoal related problems to some extent but as previous studies shows there are still more that can be done. The main efforts made concentrate on information campaigns and promotion of more energy efficient equipments. One important problem is however that wood fuel is the cheapest available energy source and hence the incentives to start using other, more sustainable, energy sources are very small. The thesis also investigates possibilities for Babati households to substitute charcoal use with renewable energy sources available in the town. The result shows that the possibilities to use renewable energy currently are very limited and mainly affordable to richer households.
Abrokwah, Richard Yeboah. "Development of Mesoporous Nanocatalysts for Production of Hydrogen and Fisher Tropsch Studies." Thesis, North Carolina Agricultural and Technical State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10117803.
Full textThe primary aim of this study was to develop mesoporous nanocatalysts for (i) hydrogen production via steam reforming of methanol (SRM) in a tubular reactor, and (ii) syngas conversion to hydrocarbons via Fisher-Tropsch synthesis using silicon microchannel microreactors. The mesoporous catalysts for SRM were prepared by an optimized one-pot hydrothermal synthesis procedure. The catalysts were investigated for SRM activity in a packed bed tubular reactor using metals, namely, Cu, Co, Ni, Pd, Zn, and Sn. The metals were incorporated in different supports -MCM-41, SBA-15, CeO2, TiO2, and ZrO2 to investigate the influence of support on catalyst properties. A sharp contrast in catalyst performance was noticed depending on the type of support employed. For example, in SRM at 250 °C, Cu supported on amorphous silica SBA-15 and MCM-41 produced significantly less CO (< 7%) compared to other crystalline supports Cu-TiO2 and Cu/ZrO2 that showed high CO selectivity of ∼56% and ∼37%, respectively. Amongst all the metals studied for SRM activity using 1:3 methanol:water mole ratio at 250 °C, 10%Cu-MCM-41 showed the best performance with 68% methanol conversion, 100% H2 , ∼6 % CO, 94% CO2 selectivities, and no methane formation. Furthermore, 10%Cu-CeO2 yielded the lowest CO selectivity of 1.84% and the highest CO2 selectivity of ∼98% at 250 °C. Stability studies of the catalysts conducted for time-on-stream of 40 h at 300 °C revealed that Cu-MCM41 was the most stable and displayed consistent steady state conversion of ∼74%. Our results indicate that, although coking played an influential role in deactivation of most catalysts, thermal sintering and changes in MCM-41 structure can be responsible for the catalyst deactivation. For monomtetallic systems, the MCM-41 supported catalysts especially Pd and Sn showed appreciable hydrothermal stability under the synthesis and reaction conditions. While bimetallic Pd-Co-MCM-41 and Cu-Ni-MCM-41 catalysts produced more CO, Cu-Zn-MCM-41 and Cu-Sn-MCM-41exhibited better SRM activity, and produced much less CO and CH4. In spite of the improved the stability and dispersion of the monometallic active sites in the support, no noticeable synergistic activity was observed in terms of H2 and CO selectivities in the multimetallic catalysts. For the Fisher-Tropsch (F-T) studies, Co-TiO 2, Fe-TiO2 and Ru-TiO2 catalysts were prepared by the sol-gel method and coated on 116 microchannels (50μm wide x 100μm deep) of a Si-microreactor. The F-T process parameters such as temperature, pressure and flow rates were controlled by an in-house setup programmed by LabVIEW®. The effect of temperature on F-T activity in the range of 150 to 300°C was investigated at 1 atm, a flow rate of 6 ml/min and a constant H2:CO molar ratio of 2:1. In our initial studies at 220 °C, 12%Ru-TiO2 showed higher CO conversion of 74% and produced the highest C2-C4 hydrocarbon selectivity-of ∼11% ethane, 22% propane and ∼17% butane. The overall catalyst stability and performance was in the order of 12%Ru-TiO2>> 12%Fe-TiO2 > 12%Co-TiO2.
Dlamini, Letsiwe Thulisile Sibongile. "Investigating alternative funding sources for community equity ownership in renewable energy projects in South Africa." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/13637.
Full textThe combined effect of a number of factors has forced the Government of South Africa to launch and seek to expand the renewable energy sector through the Renewable Energy Independent Power Producer Procurement Programme (REI4P). Such elements include environmental issues, especially climate change; the need to diversify energy sources in order for the country to be energy secure; and the developmental potential that investment in a new industry, in this instance the renewable energy industry, can bring in terms of job creation, economic growth and the exploitation of abundant natural resources. In addition to the REI4P, the Government has also been compelled to seek to expand energy supply in the country, in general, due to the energy crisis, which in turn, is closely associated with a population that is growing at a pace that is much faster than the rate at which energy can be readily supplied. Community Equity Ownership (CEO) or local community ownership is a unique feature of the REI4P that has recently come under close scrutiny due to its requirement for project companies to offer a minimum of 2.5% to 5% shares of their companies to local communities residing within a 50km radius of their renewable energy plants, in an effort to contribute toward their socio-economic development; the challenges presented by community trusts; and the subsequent resistance towards the notion of local community ownership by REI4P project companies. It is the subject of this research because it is still a critical and integral component of the REI4P and challenges associated with its financing have, in the past, jeopardised the accomplishment of the very goals for which it was constituted. The value of Social License to Operate (SLO) is that it can lay the foundation for positive relations to prevail between communities and Independent Power Producers (IPPs) in the pursuit of a viable renewable energy industry and increased energy supply in South Africa. To this end, the study demonstrates that whilst CEO is obligated in the REI4P, it also constitutes SLO because if communities own shares in REI4P projects, they are more likely to cooperate with them. Thus, the CEO, Socio-Economic Development (SED) and Enterprise Development (ED) requirements of the REI4P essentially constitute the SLO ‘building blocks’ for the Programme. Development Finance Institutions (DFIs) have been at the forefront of funding local community ownership, although other financial institutions, including commercial banks xiv have started financing it as well, while requiring guarantees and security from communities, which can offer neither. The continued implementation of the REI4P, as well as the launch of the Baseload IPP Programme and the Medium Term Risk Mitigation Project, will ultimately increase the total number of IPP Programmes in the country and will likely intensify the demand for finances to fund CEO. In view of this, where will the funding for this key aspect of the current and proposed IPP Programmes come from? This study sought to identify alternative funding options for CEO in order to ensure its continuity in both the REI4P and the proposed IPP Programmes. An exploratory research design was pursued for the study in view of data limitations arising from the infancy of the renewable energy sector in South Africa. Moreover, a questionnaire survey was undertaken and a purposive sampling technique was used to interrogate a select group of financial institutions and REI4P Independent Power Producers (IPPs), with a view to determine what their experiences have been in relation to funding CEO, as well as to identify alternative funding options for it, going forward. In this regard, a sample size of 15 was taken out of a combined total of 72 financial institutions and IPPs. Thematic content analysis was subsequently performed to process the data. The main risk associated with financing CEO that was identified by stakeholders has to do with a lack of security in lending to disadvantaged communities because they often have no collateral and can offer no guarantees that demonstrate their capacity to repay debts. Furthermore, the establishment of a Grant Scheme for funding CEO, on the one hand, and a Guarantee and Incentive Programme, on the other, wherein Government stands in as guarantor for communities as they borrow funds to facilitate CEO; were found to be potentially instrumental in widening the pool of funding for CEO. Increased vendor support and more ‘preferential’ loan terms and ‘softer’ loans from DFIs were also identified as critical in the endeavour to increase the funding sources for CEO. Although the use of the Government Pension Fund to warehouse shares on behalf of communities and utilising communal land as equity both hold some promise; they require further research. It is, therefore, concluded that there is potential for alternative funding options for community equity ownership in the REI4P. The study also found that, based on the experiences of survey respondents, there are inadequate sources of finance for CEO, in light of the increasing pressure on available financial opportunities. To this end, the delineation between the xv potential for funding local community shareholding in REI4P projects and actual access to funding is fundamental.
Kofi-Opata, Edwina. "Alternative Energy and the Developmental State in Ghana." University of Toledo / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1368117768.
Full textMachado, Ana Mercedes Corrêa. "Potencial das biomassas disponíveis no nordeste brasileiro como fontes alternativas de geração de energia." Universidade Federal de Sergipe, 2010. https://ri.ufs.br/handle/riufs/4151.
Full textO Aquecimento Global causado pela emissão de Gases de Efeito Estufa, principalmente o CO2 (dióxido de carbono) oriundo dos combustíveis fósseis, e a destruição das florestas através de desmatamentos e queimadas, gerou grandes transformações no Meio Ambiente, chegando a interferir nos fenômenos naturais. Energias Alternativas menos poluentes e renováveis têm sido apontadas como uma das soluções para mitigar o problema. O Brasil, para atender o compromisso firmado no Protocolo de Kyoto e por possuir tecnologia avançada para a produção de etanol a partir da cana-de-açúcar, vem ampliando sua área de plantio, muitas vezes substituindo culturas tradicionais, na tentativa de manter a liderança do mercado internacional. Assim, o presente trabalho objetivou apontar outras matérias-primas possíveis de obtenção de etanol dentro da biodiversidade da região Nordeste, em particular Sergipe, com aproveitamento de resíduos e biomassas subexploradas, no sentido de agregar valor, respeitando as tradições populares, como alternativa de Desenvolvimento para a região dentro dos princípios da sustentabilidade. Em Sergipe, levantou-se a potencialidade para produção de etanol a partir da manipueira, resíduo gerado no processamento da mandioca das casas de farinha do município de Campo do Brito; determinou-se o número de microdestilarias possíveis de serem implantadas; verificou-se a viabilidade econômica no período de 10 anos de produção. Fez-se um estudo voltado para a obtenção do etanol a partir do resíduo do sisal oriundo do beneficiamento da fibra nos municípios de maior produção localizados no Estado da Bahia, no qual determinou-se o número de microdestilarias possíveis de implantação e a viabilidade econômica. Levantou-se o potencial energético para produção de etanol a partir de algaroba e a capacidade de implantação de microdestilarias na região Nordeste. De acordo com os resultados, verificou-se a viabilidade para a produção de etanol a partir destas biomassas disponíveis na região Nordeste como fonte alternativa de energia menos poluente.
Fields, Francis Joseph IV. "An evolutionary perspective on selecting high-lipid-accumulating diatoms (Bacillariophyta)| Literature review, new data, and future prospects." Thesis, University of Colorado at Boulder, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1558648.
Full textLipid-producing microalgae are a feedstock for commercial products such as nutritional supplements, aquatic animal feed, and biofuels. Unlike most algal phyla, the diatoms (Bacillariophyta) characteristically produce storage lipids throughout their entire lifecycle. In this study, lipids were extracted via chloroform-methanol and quantified as percent dry weight, &mgr;g/mL, and pg/100 &mgr;m3 and then analyzed for a phylogenetic signal by comparing the variability between lineages to the variability within lineages for each metric. These ten taxa were then paired with data gathered from the literature and examined for a phylogenetic signal using previously described methods. In the first analysis, there was greater variability between than within lineages during stationary growth when using percent dry weight as a metric. In the second analysis, a statistically significant phylogenetic signal was detected for nutrient-deplete growth experiments when examining the genus-level phylogeny (P = 0.013).
Lain, Kayley Christina. "Supporting energy transitions and miscanthus program development at the University of Iowa." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5544.
Full textAdnan, Jamil. "Biogas and cattle organs : an alternative significant source of energy for sustainable development in rural Bangladesh /." Huddinge : Södertörn University College. School of Life Sciences, 2008. http://www.diva-portal.org/smash/get/diva2:15716/FULLTEXT01.
Full textМельник, Леонід Григорович, Леонид Григорьевич Мельник, Leonid Hryhorovych Melnyk, Ірина Борисівна Дегтярьова, Ирина Борисовна Дегтярева, Iryna Borysivna Dehtiarova, and D. Shevelyova. "Green energy for sustainable development in Ukraine." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45270.
Full textSilva, Manuella Pereira da 1985. "Esforço das concessionárias de energia elétrica para o desenvolvimento de tecnologias de fontes alternativas de energia : o caso das Empresas Eletrobras." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287728.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências
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Resumo: As tecnologias de energias renováveis são um exemplo de tecnologia que tenta estabelecer em um mercado já consolidado e com um forte contexto industrial baseado em tecnologias já existentes para fontes de energia convencionais. Neste contexto se destaca o papel das políticas públicas que afetam a demanda por essas tecnologias. Desde que a Lei no 9.991/2000 foi publicada, as empresas do setor de energia elétrica brasileiro começaram um grande esforço para fortalecer suas áreas de P&D. Deste modo, propõe-se analisar o esforço realizado pelas concessionárias de energia elétrica brasileiras para o desenvolvimento e adoção de tecnologias de novas fontes alternativas de energia. A questão central do trabalho é verificar se os projetos de P&D ANEEL em tecnologias de novas fontes renováveis no segmento de geração e transmissão de energia elétrica estão relacionados ao aprendizado do uso dessas novas tecnologias de energia renovável, pelas empresas de energia elétrica. O estudo empírico se baseou na análise de uma amostra de 55 projetos de P&D ANEEL das empresas Eletrobras, que são responsáveis pela maior parcela nos mercados de serviços de geração e transmissão brasileiros. A participação de projetos de P&D ANEEL em fontes alternativas é de cerca de 9% do seu total de número de projetos. A maior concentração desses projetos recai em Bioenergia, e em Energia Eólica, seguindo-se os grupos de projetos nas demais Fontes Alternativas com a seguinte ordem: Hidrogênio, Fotovoltaica, Maremotriz e Pequenas Centrais Hidrelétricas (PCH). A maior incidência de projetos em bioenergia na região Norte e em energia eólica na região Nordeste revelaram uma clara vocação dessas duas regiões para estas novas fontes de energia. Verificou-se uma baixa participação nos projetos de P&D de empresas tipicamente fornecedoras do setor elétrico. A análise da relação entre o desenvolvimento da P&D em novas fontes renováveis e o aprendizado das EELB mostrou que a maioria dos projetos é relacionada ao aprendizado de uso da tecnologia pelas concessionárias
Abstract: Renewable energy technology is an example of the technology which attempts to weigh in a consolidated market and inside a strong industrial context based on existent technologies for conventional sources of energy. The role of public politics that affects the demand for these technologies is highlighted in this context. Since the law number 9.991/2000 was published, companies from the Brazilian electrical energy sector started a great deal of effort to strengthen its areas of Research & Development. Thus this study aims to analyze the efforts done by the Brazilian concessionaries of electric power for the development and adoption of technologies in new sources of alternative energy. The core objective of this paper is to verify if ANEEL's Research & Developing project's in technology of new renewable sources in the segment of generation and transmission of electrical energy are related in learning the usage of these new technologies of renewable energy, by electrical energy companies. The empirical research is based on the analysis of 55 ANEEL's R&D projects of Eletrobras companies that are responsible for most of the market share of Brazilian services of generation and transmission. ANEEL's R&D projects participation in alternative sources is around 9% of its projects. Most of its projects are about Bioenergy and on Wind energy, followed by groups of projects on the several Alternative Sources in the following order: Hydrogen, Photovoltaic, Tidal Power and small hydro. The bigger incidence of projects on bioenergy are on the North and about wind energy in the Northeast showed a clear regional vocation of these locations for these new sources of energy. It was verified a low participation of R&D projects of companies typically suppliers of the electrical sector. The analysis of the relationship among the development of R&D of renewable sources and the learning of EELB showed that most of the projects are related to learning the usage of technology by the concessionaires
Mestrado
Politica Cientifica e Tecnologica
Mestra em Política Científica e Tecnológica
Fedoruk, M. "Energy efficiency in buildings as one of the solutions for achieving energy security." Thesis, Sumy State University, 2014. http://essuir.sumdu.edu.ua/handle/123456789/36062.
Full textGupta, Kushagra. "Techno-economic analysis of implementing energy-efficiency and alternative fuels in Indonesia using OSeMOSYS." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280820.
Full textIndonesiens energibehov har ökat snabbt drivet av ökande befolkning, urbanisering och snabbekonomisk tillväxt. Med ökande energibehov fortsätter utsläppen i energisektorn att öka. Medden gradvisa ökningen i efterfrågan och den dominerande andelen fossila bränslen ienergimixen är genomförandet av energieffektivitetsåtgärderna avgörande för att Indonesienska uppnå sina energi- och klimatmål. Ur politiskt perspektiv syftar Indonesiens nationella energiplan till att uppnå högre nivåer av energieffektivitet för att minska den totala energiintensiteten. Indonesien har också åtaganden att minska utsläppen av växthusgaser och uppnå SDG-mål. Denna rapport granskar den aktuella statusen för efterfrågan på energi och energieffektivitet i Indonesien och utvärderar potentialen för att genomföra energieffektivitetsåtgärder och alternativ för bränsleomkoppling för att uppnå framtida energiförbrukning med låg koldioxid. Indonesiens långsiktiga energimodell modelleras med hjälp av open-sourcemodelleringsverktyget OSeMOSYS. Olika scenarier har utvecklats för att undersöka resultatet av genomförande av energieffektivitet och bränsleomkopplingsåtgärder inom bostads-, kommersiellt och transportsektorn. Resultaten presenteras i termer av minskning av den totalaslutliga energiförbrukningen, växthusgasutsläpp och lokal luftföroreningar. Kostnadsnyttoanalys av de tillämpade åtgärderna utgör deras ekonomiska genomförbarhet. Med användning av effektiva apparater kan upp till 30% elbesparing uppnås i bostads- och affärssektorn. Fordonselektrifiering kan bidra till minskning av den årliga energiförbrukningen med 48% i slutet av modelleringsperioden. Åtgärder inom bostads- och kommersiell sektor bidrar direkt till utsläppsminskningar. Fordonselektrifiering visar inte proportionell minskning av utsläpp jämfört med energiförbrukningen på grund av hög kolintensitet i elnätet. Emellertid kan en betydande minskning av lokala luftföroreningar uppnås. Kostnads för delningsanalys visar att distribution av effektiva apparater är ekonomiskt möjlig med maximalt 2 års återbetalningsperiod. Å andra sidan kommer framgångsrik distribution av elfordon att kräva konkret stöd från regeringen på grund av dess höga prispremie jämfört med konventionella fordon. Energi effektivitetsåtgärder och bränsleomkoppling bidrar också väsentligt till att uppnå mål för hållbar utveckling 7.3. Sammanfattningsvis presenterar denna studie en uppsättning tekniska och ekonomiskt genomförbara energisystemutvecklingsalternativ för Indonesien. Från modelleringsperspektivet identifierar denna studie sätt att implementera hanteringsåtgärder på efterfrågesidan i modelleringssystemet för energiförsörjning OSeMOSYS.
Tran, Bich Thi Ngoc. "The impact of nitrogen limitation and mycorrhizal symbiosis on aspen tree growth and development." Thesis, The University of Alabama in Huntsville, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1570507.
Full textNitrogen deficiency is the most common and widespread nutritional deficiency affecting plants worldwide. Ectomycorrhizal symbiosis involves the beneficial interaction of plants with soil fungi and plays a critical role in nutrient cycling, including the uptake of nitrogen from the environment. The main goal of this study is to understand how limiting nitrogen in the presence or absence of an ectomycorrhizal fungi, Laccaria bicolor, affects the health of aspen trees, Populus tremuloides. Under limited nitrogen conditions, aspen tree growth and development is reduced, and mycorrhizal symbiosis may significantly improve plant biomass, providing sufficient nitrogen is available. The results of biochemical analysis also indicate that the supply of carbon to fungus associated with aspen roots is reduced as a result of aspen utilizing more sugar resources for the production of sucrose and starch within shoot tissues. Identification of metabolic pathways in aspen tree roots revealed that carbohydrate and nitrate metabolism was impacted by changing environmental conditions, including interactions with the fungi.
Jamil, Adnan. "Biogas and Cattle Organs : An Alternative Significant Source of Energy for Sustainable Development in Rural Bangladesh." Thesis, Södertörn University College, School of Life Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-1617.
Full textA study has been conducted to assess the possibilities to introduce dead cattle organs as the raw material for biogas generation at the rural household level in Bangladesh. At the same time, the present energy situation in Bangladesh is highlighted. The actors in the energy sector have been identified. The energy policy of Bangladesh is not transparent and there seems to be no energy strategy for the country. Possibilities of other renewable sources of energy are also discussed. Biomass fuels comprise the main source of energy for the rural people and the major share of energy use is consumed after cooking and household lightning. Enormous amount of labor is spent in gathering and collecting of fuel wood and agricultural residues that reduces productivity among women and young children. Besides, biogas is generated from agricultural residues and animal excreta in Bangladesh. Tremendous pressure on rural forests for fuel wood is increasing and environmental degradation is occurring. Agricultural lands are losing vital nutrients as people are using crop residues and animal excreta for energy. Under present condition, the possibilities of adopting biogas technology and dead cattle organs as the raw materials to generate biogas is analyzed in terms of availability of the raw material. Sustainable development using biogas is also considered. And lastly, some recommendation is suggested, based on the current energy situation of Bangladesh.
McDonough, Joshua. "System Dynamics Modeling and Development of a Design Procedure for Short-term Alternative Energy Storage Systems." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1308287500.
Full textGorenstein, Dedecca João 1985. "Barreiras à geração eólioelétrica no Brasil e na Argentina : uma aplicação do método de análise hierárquica." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264683.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
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Resumo: Este trabalho utilizou o método de análise hierárquica (AHP, amplamente aplicado ao estudo de questões energéticas) e entrevistas para identificar as principais barreiras ao desenvolvimento eólico na Argentina e no Brasil, segundo a percepção de especialistas de ambos os países, com o desenvolvimento de uma metodologia que pode ser aplicada ao estudo de outras tecnologias emergentes de geração. A metodologia indicou haver grande concordância entre os resultados das entrevistas e da aplicação do AHP, além de cada ferramenta complementar as principais contribuições da outra. Muitas barreiras identificadas resultam da formatação dos setores elétricos, identificando-se, contudo, um maior consenso sobre as barreiras entre especialistas argentinos. Este trabalho identificou também a tendência de manutenção do desenvolvimento da geração eolioelétrica nos dois países, apesar das barreiras levantadas e da percepção de implantação de medidas paliativas no sistema elétrico argentino, com a falta de medidas mais abrangentes
Abstract: This study used the analytic hierarchy process (AHP, largely used in the study of energy matters) and interviews to identify the main barriers to the development of wind power in Argentina and Brazil, according to the perceptions of specialists from both countries, with the development of a methodology that may be applied to the study of other emerging power generation technologies. The methodology indicated a great consistency between results from interviews and the application of the AHP, besides each tool complementing the other's main contributions. Many identified barriers result from the configuration of the power sectors, although a greater consensus on barriers was seen among Argentinean specialists. This study also identified the tendency of maintenance of the development of wind power generation in both countries, in spite of the surveyed barriers and the perception of the implantation of palliative measures to the Argentinean power sections, in detriment of more comprehensive measures
Mestrado
Planejamento de Sistemas Energeticos
Mestre em Planejamento de Sistemas Energéticos
Jain, Deeksha. "Development of Alternative Materials to Replace Precious Metals in Sustainable Catalytic Technologies." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566176607919202.
Full textJayaraman, Sundar. "Business & technology strategies to promote the development and commercialization of alternative energy technologies like fuel cells." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/43119.
Full textIncludes bibliographical references (leaves 81-82).
Globalization has led to the development of emerging markets and economies. With economic expansion around the globe, there is a greater energy demand to sustain this growth. Increasing energy demand has resulted in increase in energy prices and increase in emission levels. While conventional energy technologies have advantage in terms of established infrastructure and lower cost, they are inefficient and rely heavily on fossil fuels. Conventional energy technologies alone cannot sustain and cater to the evolving energy market's needs of higher efficiency, lower emissions and resources conservation. Renewable energy solutions and alternative energy technologies like distributed generation need to be developed to meet this energy demand, conserve the definite resources and reduce emissions. But at the moment, alternative energy technologies due to lack of infrastructure, development cost and regulations are limited in their applications. Therefore in the near term, we recommend that they strategically position themselves in the market with niche and right fit opportunities. We also recommend that they need to utilize the development dollars effectively in integrating technology development with their product development activities and develop durable cost effective products. They also need to develop key partnerships and integrate value across their development and fulfillment chains. Strategic positioning, value chain integration and key execution in development with mature processes will aid alternative energy technologies to overcome the existing market barriers and move towards rapid commercialization.
by Sundar Jayaraman.
S.M.
Leão, Filho Agnaldo Dias. "Uso de geradores eólicos de pequeno porte para irrigação no semi-árido do estado de Sergipe." Universidade Federal de Sergipe, 2007. https://ri.ufs.br/handle/riufs/4170.
Full textAs fontes renováveis de energias mostram-se como uma alternativa interessante para minimizar o problema da falta de energia elétrica enfrentada pelo homem rural, principalmente nos locais remotos onde as dificuldades de distribuição das linhas de eletrificação, sobretudo no aspecto econômico, são grandes mostrando-se inviáveis. A energia eólica além de outros propósitos pode ser aproveitada em bombas d'água para irrigação. Assim, enorme quantidade de energia consumida para bombeamento d'água pode ser poupada pela introdução de bombas de Catavento, pois é uma tecnologia consolidada, não poluente e através de estudos, já foi provado que o bombeamento d'água usando a velocidade de bombear do Catavento é muito econômico. Esta Dissertação pretende apresentar, a partir de um conceito de desenvolvimento sustentável ancorado em sete dimensões da sustentabilidade (ecológica, econômica, social, espacial, cultural, tecnológica e política), um projeto de geradores eólicos de pequeno porte, desenvolvendo a partir desse projeto, um conjunto de critérios capazes de contribuir para avaliação da viabilidade do mesmo. É também apresentado um exemplo de projeto de energia eólica, que visa reduzir a dependência energética na agricultura e contribuir para a superação dos atuais problemas de abastecimento do setor energético. Por fim, estes critérios são testados para analisar a viabilidade deste projeto alternativo e a aplicabilidade desta tecnologia, com o propósito de aumentar a exploração desse tipo de energia alternativa, promovendo o desenvolvimento sustentável e beneficiando o pequeno produtor. Como resultado, concluiu-se que o volume de água bombeado pelo Catavento é suficiente para pequenos sistemas de irrigação, armazenamento em reservatórios para uma posterior utilização por gravidade ou ter o seu uso direto para o consumo humano ou de animais dependendo sempre da altura manométrica e da quantidade de água solicitada pelo usuário.
Gupta, Gunjan. "An analysis and improvement of selected features of power quality of grid-tied alternative energy systems." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2696.
Full textElectrical energy can be easily used and converted to other forms of energy for various applications. Technological advancement increases the dependency on electricity to a great extent. Various internal and external factors are responsible for the bad quality of power in power systems. The performance of the system is greatly affected by the presence of harmonics, as well as voltage and frequency variations, which leads to the malfunctioning of the device and decline of power quality and supply at load side. The reactive power compensation is carried out for better power quality. The literature survey is done to find the best and efficient scheme for reactive power compensation and mitigation of various power quality problems. The devices which are used to measure various power quality factors are discussed. Various mitigating schemes are surveyed in order to compensate reactive power and to improve the power quality at the distribution end. The integration of the most widely used renewable energy, wind energy in the distribution system creates technical issues like stability of the grid, harmonic distortion, voltage regulation, active and reactive power compensation etc. which are restricted to IEC and IEEE standards. One of the topics this thesis addresses is regulation in the reactive power generated along with voltage regulation by using an effective power electronics device known as a STATCOM. The main power quality factors like overvoltage and voltage flickers are mitigated by establishing STATCOMs in small wind farms. The wind farms are equipped with three wind turbines. These three wind turbines found in the wind farm can be operated together or one after another with an introduced delay. A glitch in even a little piece of a power grid can result in loss of efficiency, income and at times even life. In this manner, it is basic to outline a system which can distinguish the faults of the power system and take a faster response to recover it back to required reactive power. Two devices STATCOM and D-STATCOM are used for this purpose in this thesis. The D-STATCOM circuit and operating principle are also discussed in thesis. Different topologies of D-STATCOM discussed with their benefits and shortcomings. The voltage, current and hybrid technologies of D-STATCOM are also discussed.
Pastukhov. "World development of wind power plants as an example of cosmopolitan patriotism." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31688.
Full textПімоненко, Тетяна Володимирівна, Татьяна Владимировна Пимоненко, Tetiana Volodymyrivna Pimonenko, Ольга Володимирівна Прокопенко, Ольга Владимировна Прокопенко, Olha Volodymyrivna Prokopenko, J. Cebula, Самуель Чейн, Самуэль Чейн, and Samuel Chayen. "Comparative analysis of the development of wind energy in Israel, Poland and Ukraine." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/43509.
Full textОчкуренко, С. В. "Еколого-економічне дослідження трендів розвитку відновлювальної енергетики." Master's thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/87227.
Full text-
The purpose of this work is to investigate the environmental and economic trends in the development of renewable energy in the Third and Fourth Industrial Revolution. The object of this study is to change the priorities and pace of development of renewable energy. In connection with the goal in the study, the following tasks were performed: - consider the theoretical aspects of the development of alternative energy; - to study economic trends in the development of "green" energy; - to forecast the directions of development of modern energy tendencies.
Törnmarck, Karl. "The Directive on the Deployment of Alternative Fuels Infrastructure : An analysis of its effects on the market uptake of natural gas vehicles." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230168.
Full textCunha, Kamyla Borges da. "Mecanismo de desenvolvimento limpo : evolução do instrumento e suas perspectivas." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263871.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: Neste trabalho, analisou-se o MDL, delineando-lhe o conceito, objetivos, princípios, procedimento de implantação e os critérios de elegibilidade; o delineamento da inserção do MDL no Brasil; e a investigação da potencialidade do MDL como ferramenta de obtenção de formas renováveis de energia, possibilitando a futura análise da efetividade desse instrumento como ferramenta de promoção de novos padrões de obtenção de energia. Foi realizada ampla revisão bibliográfica sobre o tema, a contemplar as bases científicas das mudanças climáticas, o processo de negociação, os objetivos e princípios da CQNUMC, o histórico e aspectos do Protocolo de Quioto; o funcionamento do regime jurídico-político instituído por esses tratados; o MDL, seus objetivos, estrutura, dinâmica e processo de certificação, enfocando-se, de forma crítica, os critérios de elegibilidade. Depois da contextualização do plano teórico do MDL, realizou-se uma revisão bibliográfica sobre a operacionalização do MDL no mercado de carbono, explicitando a teoria econômica subjacente aos mecanismos de flexibilização, assim como o funcionamento do mercado de carbono. Tomando como base a visão geral do MDL, procurou-se focar a inserção do MDL no Brasil, dando-se destaque aos aspectos relacionados ao setor de energia
Abstract: This study has as main objectives the anaIysis of CDM, expIaining its concept, objectives, principIes and procedures, eIigibiIity criteria; the investigation of CDM impIementation in BraziI; and the assessment of the potentiaI to use CDM as a tooI to incentive sustainabIe energy generation. In order to achieve these aims, it was made a bibliographic revision about scientific basis of climate change, intemationaI negotiation process, UNFCCC objectives and principIes, Kyoto Protocol main aspects; dynamics of the cIimate regime impIemented by these treaties; the CDM, its objectives, structure, dynamics and procedures and modalities, a criticaI assessment of its eligibility criteria and the CDM dynamics in the carbon market. After this, and taking into account the main aspects of this anaIysis, it was investigated CDM impIementation in BraziI, focusing the reIated energy aspects
Mestrado
Energia, Sociedade e Meio Ambiente
Mestre em Engenharia Mecânica
Мельник, Леонід Григорович, Леонид Григорьевич Мельник, Leonid Hryhorovych Melnyk, Олена Ігорівна Маценко, Елена Игоревна Маценко, Olena Ihorivna Matsenko, and V. Piven. "Socio-Economic Aspects of Green Energy Development: The Experience of the EU and Ukraine." Thesis, Sumy State University, 2020. https://essuir.sumdu.edu.ua/handle/123456789/80920.
Full textThe paper shows the importance of renewable energy sources development. Most studies have found that a reduction of greenhouse gases emissions can be achievable by replacing conventional sources of energy with alternative ones. The EU has achieved significant success, getting only wind and solar in total electricity generation 21% in 2020. The integration of Ukraine to the European Union is a strategic direction of the country foreign policy.
Чигрин, Олена Юріївна, Елена Юрьевна Чигрин, Olena Yuriivna Chyhryn, and О. А. Поросюк. "Передумови використання альтернативних джерел енергії в Україні." Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/49850.
Full textNiazi, Zarrar. "Role of Nuclear Energy in Japan Post–Fukushima : Alternatives and their Impact on Japan’s GHG Emission Targets." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-204226.
Full textGugale, Gaurav Subhash. "Development of Analytical Equations for Optimum Tilt of Two-Axis and Single-Axis Rotating Solar Panels for Clear-Atmosphere Condition." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright148459939571045.
Full textFernandes, Pedro Rafael Antunes Bragança. "Digestão anaeróbia : um Instrumento para o desenvolvimento sustentável." Master's thesis, Instituto Superior de Economia e Gestão, 2004. http://hdl.handle.net/10400.5/18926.
Full textA digestão anaeróbia é um processo que acontece naturalmente e através do qual a matéria orgânica é decomposta num gás, a que se dá o nome de biogás, e num substrato orgânico que pode ser separado numa fracção líquida e numa fracção sólida. Toda esta matéria pode ser aproveitada. O biogás, devido à presença de metano, pode ser utilizado para produção de energia. A matéria orgânica final está estabilizada e é um produto agrícola valioso. Este método de valorização dos resíduos impede que estes provoquem danos ambientais importantes. Estes benefícios ambientais são externos ao mercado e, por isso, não têm um valor económico. Este facto aliado ao preço elevado da tecnologia torna o investimento num digestor pouco atractivo. O Estado pode corrigir esta falha do mercado e permitir o aproveitamento de todo o potencial nacional. Esse potencial de produção de biogás é calculado para cada uma das fontes de resíduos biodegradáveis. Neste trabalho são desenvolvidos os parágrafos anteriores e na última parte são enumerados os instrumentos que podem ser adoptados para estimular o desenvolvimento desta tecnologia. Destacam-se as políticas energética, ambiental e agrícola.
The anaerobic digestion is a process which occurs naturally and through which the organic matter is decomposed into a type of gas, called biogas, and into an organic substratum that can be separated into a liquid fraction and into a solid fraction. Ali this matter can be used. The biogas, due to the presence of methane, can be used to produce energy. The final organic matter is stabilized and it is a valuable product to use in agriculture. This method of waste valorisation prevents these from provoking considerable environmental damages. These environmental benefits are externai to the market and for that they have no economic value. This fact allied to the high price of technology makes the investment in a digester unattractive. The state can correct this market imperfection and allow the full use of the whole national potential. That biogas production potential is calculated for each one of the biodegradable waste sources. In this paper the previous paragraphs will be further developed and in the last part are listed the several Instruments that can be used to stimulate the development of this technology. The energy, environmental and agricultural policies are enhanced.
info:eu-repo/semantics/publishedVersion
Russell, Alexander George. "An analysis of non-utility generation alternatives." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42063.
Full textMaster of Science
Johnson, Francis X. "Exploiting cross-level linkages to steer the bioenergy transition." Doctoral thesis, KTH, Energi och klimatstudier, ECS, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155686.
Full textQC 20141112
Домашенко, Марина Дмитрівна, Марина Дмитриевна Домашенко, Maryna Dmytrivna Domashenko, and К. Г. Короленко. "Переваги те недоліки впровадження альтернативних джерел енергії для розвитку економіки України." Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42875.
Full textBlanchard, Tina-Louise. "A Systems Engineering Reference Model for Fuel Cell Power Systems Development." Cleveland State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=csu1322713336.
Full textMarques, Antonio de Oliveira. "Infraestrutura energética e desenvolvimento sustentável : situação atual e alternativas para o estado de Roraima." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/18308.
Full textThis study aims to analyze the current situation of energy structure available of Roraima state, as well as viable alternatives to enlarge the base of the structure and minimize the impact to the environment, thus providing the support necessary for sustainable development of the state. In the theoretical framework, sought to present the main links between natural resources, economy and environment, and between infrastructure and economic development, where it is present energy infrastructure. Examined the capacity of generating electricity in Roraima and the existent limitations of the current structure available. Verifying the available options for energy production from renewable source in the state, analyzing their potential and viability. Were also proposed for energy planning strategies with the goal of providing the essential foundation for the sustainable development of Roraima. As a result of the search is highlighted the source of energy with the greatest potential in the state is water. The biomass and solar energy can be alternatives to attend isolated communities. The study also found that the current structure of energy Roraima does not provide the support necessary for a reliable and sustainable development.
STECHER, LUIZA C. "Cálculo de viabilidade econômica de fontes alternativas de energia considerando seus custos ambientais para pequenas comunidades da região nordeste brasileira." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10619.
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Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Gonzales, Palomino Raul. "Oportunidades e alternativas para a mudança da matriz energética peruana : o papel do gás natural." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264958.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
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Resumo: Nos últimos anos, várias discussões e análises sobre um maior uso de gás natural no Peru foram realizadas. No início de 2011, durante os debates presidenciais, este era um item da agenda, e a priorização do desenvolvimento do mercado interno de gás, em vez de sua exportação foi o tema central. A presente tese analisa as alternativas de uso do gás natural nos setores de transporte, residencial, terciário, industrial de grande porte e de geração elétrica no Peru, assim como avalia o impacto da sua penetração na substituição de combustíveis derivados do petróleo e a possibilidade de produção de eletricidade através da cogeração. Para tanto, foram efetuadas uma análise da matriz energética peruana, uma revisão das reservas e infraestrutura da indústria do gás natural, para uma avaliação complementar e como ferramenta de comparação foram calculados os indicadores de sustentabilidade energética do País. Além disso, foi realizada uma revisão das metodologias existentes e empregadas para este tipo de estudo, além de definidos a abrangência e os cenários deste trabalho. Dos cenários avaliados, o tendencial- moderado seria o mais provável de acontecer e se viabilizar. Este mostra que o uso do gás natural aumentará de 3.280 Mm3, em 2008, para 6.295 Mm3, em 2020, melhorando, assim, a distribuição de sua utilização nos diferentes setores analisados, não sendo utilizado majoritariamente no setor de geração elétrica, como ocorre na atualidade. Por outro lado, a maior penetração deste energético permitirá substituir combustíveis derivados do petróleo, como o óleo Diesel, óleo combustível, gasolina e GLP, e, consequentemente, reduzir as emissões de dióxido de carbono. Os resultados mostram a existência de reservas para um maior desenvolvimento do mercado interno do gás natural no curto e médio prazo, mas, no futuro, é necessário continuar avaliando as reservas e o uso do gás (incluindo a exportação), considerando a garantia de seu fornecimento no longo prazo, descobertas de reservas e novos projetos para sua utilização
Abstract: In recent years there have been several discussions and analysis on a greater use of natural gas in Peru. This was part of the agenda during the presidential debates in early 2011. During these debates, the importance of developing a domestic demand for natural gas rather than gas exports was the central theme of discussion. This thesis analyzes the alternative for the use of natural gas in sectors such as transportation, residential, commercial, large-sized industry and power generation in Peru. Moreover, it evaluates the impact of its penetration as a replacement for oil products and the possibility of production of electricity through cogeneration. For this, an analysis on the Peru's energy matrix was conducted. Also, the current reserves and infrastructure of the natural gas industry were shown and additionally as a tool for comparison were calculated energy indicators for sustainable development in the country. In addition, a review of existing and used methodologies for this type of study were performed, and the scope and scenarios of this work were defined. The moderate trend scenario would be more feasible and likely to occur in comparison to all the scenarios evaluated in this study. This scenario shows that the use of natural gas will increase from 3.280 Mm3 in 2008 to 6295 Mm3 in 2020, which will improve the distribution of it in the different sectors that were analyzed, and reduce its use in the power generation sector where natural gas is mainly being utilized as of today. The greater penetration of natural gas would reduce the use of oil products such as Diesel oil, residual oil, gasoline and LPG, and thereby reduce CO2 emissions. The results show the existence of reserves for further development in the domestic gas market in the short and medium term, but in the future it will be necessary to continue evaluating the reserves and consumption of the natural gas in order to guarantee its supply for the long term, the discovery of new reserves, and the development of new projects for its use
Doutorado
Planejamento de Sistemas Energeticos
Doutor em Planejamento de Sistemas Energéticos
Zhou, Qinsheng. "Integrative Power Supply Solution for Future Generation Vehicles." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180331.
Full textDvořák, Jakub. "Návrh objektu využívajícího alternativní materiály se zohledněním požadavků na trvale udržitelný rozvoj." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-396157.
Full textТеліженко, Олександр Михайлович, Александр Михайлович Телиженко, Oleksandr Mykhailovych Telizhenko, and К. Ю. Репа. "Проблеми впровадження альтернативних джерел енергії в Україні." Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/43808.
Full textEvangelista, Frederico Júnior Pereira. "Mapeamento de potencial hidrelétrico do Estado de Roraima para a construção de pequenas centrais hidrelétricas – PCHS : alternativa energética para o desenvolvimento sustentável." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/54516.
Full textIn the social context the electric power production has been one of the great challenges of the present time. It has been looking for like this forms of guaranteeing the sustainability of the energy head offices associated to the production of goods and services. In this sense, to present researches configures itself as an investigation proposal that looks for to demonstrate the current situation of the available energy structure in the State of Roraima, its economical and social cost, and the benefits related with the implantation of an incentive program for the Small Central Hydroelectric (PCHs), supplying support to the maintainable development. For the development of this study, the descriptive method of research type was used, to obtain the objectives and purposes of the investigation, it was also proceeded to the combination of bibliographical and documental research. So, the capacity of the energy head office of Roraima located in a isolated system was analyzed that it has an interconnection with Venezuela, through ‘ Linhão de Guri’, its main supplier, added it a distribution inside the State predominantly to diesel oil. The research verified that the available energy structure, doesn't supply the necessary and reliable support for a process of maintainable development. Therefore, the current scenery demands the search from the public and private institutions for alternatives to set out the subjects of the deficiency of the energy head office of the State of Roraima. Additionally some strategies are discussed for an energy planning of implantation of an incentive program for the Small Central Hydroelectric (PCHs).
Gomes, Mariana Lindenberg. "A indústria de geração de energia eólica como fonte alternativa de energia." reponame:Repositório Institucional do BNDES, 2013. https://web.bndes.gov.br/bib/jspui/handle/1408/7026.
Full textMBA Executivo (especialização em Administração) - Universidade Federal do Rio de Janeiro. Instituto de Pós-Graduação e Pesquisa em Administração, Rio de Janeiro, 2013.
Bibliografia: p. [22-25]