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Relevant bibliographies by topics / Energy: Fuel Technology / Dissertations / Theses

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Dissertations / Theses on the topic 'Energy: Fuel Technology'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Tsay, David 1967. "Feasibility study of fuel cell residential energy stations." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17002.

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Thesis (S.M.M.O.T.)--Massachusetts Institute of Technology, Sloan School of Management, Management of Technology Program, 2003.<br>Includes bibliographical references.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Electricity provisioning has historically satisfied demand by centralized generation and pervasive distribution through an extensive transmission and distribution network. Once demand increases beyond a fixed threshold, however, the capacity of the generation, transmission and d

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2

Kim, Hyea. "High energy density direct methanol fuel cells." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37106.

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The goal of this dissertation was to create a new class of DMFC targeted at high energy density and low loss for small electronic devices. In order for the DMFC to efficiently use all its fuel, with a minimum of balance of plant, a low-loss proton exchange membrane was required. Moderate conductivity and ultra low methanol permeability were needed. Fuel loss is the dominant loss mechanism for low power systems. By replacing the polymer membrane with an inorganic glass membrane, the methanol permeability was reduced, leading to low fuel loss. In order to achieve steady state performance, a comp

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3

Picazo, Christine Pilar L. (Christine Pilar Lopez). "Comparison of energy efficiency, emissions, and costs of internal combustion and fuel cell vehicles operating on various fuels." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9562.

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Thesis (S.M.)--Massachusetts Institute of Technology, Sloan School of Management, Technology and Policy Program, 1999.<br>Includes bibliographical references (p. 113-117).<br>This thesis aims to evaluate a new transportation technology (fuel cells) against a proven technology (internal combustion engine). Technology is ever evolving, and the new must be an improvement upon the old; otherwise, there is no sense in adopting the new and unproven technology. For the commercialization of the fuel cell vehicle to be successful, it has to be competitive with the internal combustion vehicle in terms o

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4

Hu, Huaining. "Development of continuous microbial fuel cell for renewable energy production from wastewater." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/11692/.

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There is around 9.5 kJ/L of energy contained in UK wastewater which is wasted through traditional aeration treatment. Microbial fuel cell (MFC) technology provides a new approach to carry the promise of both treating wastewater without aeration and producing renewable energy in the form of electricity and H2. This work has contributed to making this a reality. In this work, MFC designs were developed and constructed to test their energy performances. The power densities ranged from 13.3 mW/m2 to 30 mW/m2. The coulombic efficiency based on the contained substrates is in the range of 1 % to 7 0/

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5

Raza, Rizwan. "Functional nanocomposites for advanced fuel cell technology and polygeneration." Doctoral thesis, KTH, Kraft- och värmeteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-51476.

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In recent decades, the use of fossil fuels has increased exponentially with a corresponding sharp increase in the pollution of the environment. The need for clean and sustainable technologies for the generation of power with reduced or zero environment impact has become critical. A number of attempts have been made to address this problem; one of the most promising attempts is polygeneration. Polygeneration technology is highly efficient and produces lower emissions than conventional methods of power generation because of the simultaneous generation of useable heat and electrical power from a

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6

Reid, Patrick Earl Fitzgerald. "The integration of solid oxide fuel cell technology with industrial power generation systems." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/18947.

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7

Sendich, Elizabeth Diane. "Modeling and analysis of the biorefinery integrated with the agricultural landscape." Diss., Connect to online resource - MSU authorized users, 2008.

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8

Kulp, Galen W. "A Comparison of Two Air Compressors for PEM Fuel Cell Systems." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/30840.

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Proton exchange membrane (PEM) fuel cells are considered one of the best potential alternative power sources for automobiles. For this application, high efficiency and high power density are required. Pressurizing the fuel cell system can give higher efficiency, higher power density and better water balance characteristics for the fuel cell, but pressurization uses a percentage of the fuel cell output power. The compressor used to elevate the pressure has a direct effect on the system efficiency and water balance characteristics. A variety of compressors are being developed for fuel cell a

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9

Kalinauskaitė, Solveiga. "Environmental and energy efficiency evaluation of straw treatment and conversion technology." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20141223_145125-20389.

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Research goal. We seek to validate optimal composition of straw biomass fuel and energy efficiency of straw utilization for energy needs, to assess straw biomass fuel preparation technology in respect to energy efficiency, and to determine emissions that are generated during straw combustion. Research objectives. The following objectives were planned to reach the goal of the research: 1) Process analysis of preparation of biomass fuel (pellets and briquettes) for burning, 2) Validation of mixture of lime additive (CaO) into straw biomass fuel, 3) Property analysis of prepared biomass fuel, 4)

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10

Mitchell, Catherine. "The renewable non-fossil fuel obligation : a case study of the barriers to energy technology development." Thesis, University of Sussex, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240632.

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11

Mahnovski, Sergej. "Robust decisions and deep uncertainty an application of real options to public and private investment in hydrogen and fuel cell technologies /." Santa Monica, CA : RAND, 2007. http://www.rand.org/pubs/rgsd_issertations/RGSD210/.

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12

Jayaraman, 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.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, February 2008.<br>Includes bibliographical references (leaves 81-82).<br>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 fue

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13

Hu, Yuetong. "Development Trends of World Energy." Thesis, Department of Management and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19517.

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14

Penniall, Christopher Leigh. "Fischer-Tropsch Based Biomass to Liquid Fuel Plants in the New Zealand Wood Processing Industry Based on Microchannel Reactor Technology." Thesis, University of Canterbury. Chemical and Process Engineering, 2013. http://hdl.handle.net/10092/7884.

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This research forms part of a programme of work at the University of Canterbury investigating the production of liquid fuels from biomass. The drivers for this research are the plentiful supply of woody biomass in New Zealand as well as the necessity for a reduction in the use of fossil fuels. Fischer-Tropsch synthesis has been chosen as the base conversion method for syngas to liquid fuels. While Fischer-Tropsch plants are traditionally very large, the low geographical density of the biomass feedstock necessitates a shift from a traditional economies of scale approach. In this research a

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15

Mustafa, M. Y. F. A. "Design and manufacturing of a (PEMFC) proton exchange membrane fuel cell." Thesis, Coventry University, 2009. http://curve.coventry.ac.uk/open/items/272310c1-2614-c525-0f72-77c2c68cc626/1.

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This research addresses the manufacturing problems of the fuel cell in an applied industrial approach with the aim of investigating the technology of manufacturing of Proton Exchange Membrane (PEM) fuel cells, and using this technology in reducing the cost of manufacturing through simplifying the design and using less exotic materials. The first chapter of this thesis briefly discusses possible energy alternatives to fossil fuels, arriving at the importance of hydrogen energy and fuel cells. The chapter is concluded with the main aims of this study. A review of the relevant literature is prese

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Fewell, Jason Edward. "The Effect of Lender-Imposed Sweeps on an Ethanol Firm's Ability to Invest in New Technology." Thesis, North Dakota State University, 2009. https://hdl.handle.net/10365/29634.

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New federal legislation proposes to reduce greenhouse gas (GHG) emissions associated with biofuel production. To comply, existing corn ethanol plants will have to invest in new more carbon efficient production technology such as dry fractionation. However, this will be challenging for the industry given the present financial environment of surplus production, recent profit declines, numerous bankruptcies, and lender imposed covenants. This study examines a dry-mill ethanol firm's ability to invest in dry fractionation technology in the face of declining profitability and stringent lender cash

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17

Johnson, Jessica Virginia. "Development of a Microbial Fuel Cell Cocatalyst with Propionibacterium freudenreichii ssp. shermanii." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38450.

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Addressing the low power generation of anodic biocatalysts is pertinent to the advancement of microbial fuel cell technology. While Propionibacterium freudenreichii ssp. shermanii has shown potential as a biocatalyst, its incomplete consumption of the anodic substrate is a persistent issue. This research aims to optimize substrate consumption to increase power generation using Propionibacterium freudenreichii ssp. shermanii as a biocatalyst. The effect of coculturing Geobacter sulfurreducens with Propionibacterium freudenreichii ssp. shermanii was investigated. The cocatalyst and pure culture

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18

Saxe, Maria. "Bringing fuel cells to reality and reality to fuel cells : A systems perspective on the use of fuel cells." Doctoral thesis, KTH, Energiprocesser, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9192.

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With growing awareness of global warming and fear of political instability caused by oil depletion, the need for a society with a sustainable energy system has been brought to the fore. A promising technology often mentioned as a key component in such a system is the fuel cell technology, i.e. the energy conversion technology in focus in this thesis. The hopes and expectations on fuel cells are high and sometimes unrealistically positive. However, as an emerging technology, much remains to be proven and the proper use of the technology in terms of suitable applications, integration with societ

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19

Munters, Fredrik, Lovisa Stenhammar, and Grehn Vilma. "The future of hydrogen in Region Uppsala : A case study of an electrolyseras a node in the district heating network." Thesis, Uppsala universitet, Institutionen för samhällsbyggnad och industriell teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444300.

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This report aims to analyse how an electrolyser would benefit Region Uppsala in the transition to a more sustainable society and where it would be most beneficial to place it. The studied locations for placement werein Uppsala, Storvreta andKnivsta. The possibilities of how the residual products oxygen and residual heat could be utilized from the electrolysis process is investigated. The economic calculation includes incomes and expenses of all components in the electrolysis process on a yearly basis and on a 15-years period. The climate calculation includes the reduction of CO2-equivalent emi

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20

Jebe, Thulisa. "Potential socio-economic implications of ethanol production as a green economic initiative in Cradock, Eastern Cape." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2776.

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Thesis (MTech (Environmental Management))--Cape Peninsula University of Technology, 2018.<br>South Africa is taking a continental lead towards the transition of the green economy, and the energy sector has been identified as one of the cornerstones integral in this transition. This transition pays attention to alternative energy sources to gradually replace fossil fuels. Recently, the production of ethanol is seen as an energy source that is an integral player in achieving a green economy. The ethanol production project is linked to the improvement of the economy, and social well-being concomi

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Bataille, Christopher G. F. "Capital for energy and inter-fuel elasticities of substitution from a technology simulation model, estimating the cost of greenhouse gas reduction." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq37479.pdf.

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22

Bai, He. "High temperature proton-exchange and fuel processing membranes for fuel cells and other applications." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1204732417.

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23

Ba, Meng. "A Test Rig for Emulating Drive Cycles to Measure the Energy Consumption of HEVs." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263859.

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This master thesis project aims to complete and verify core functions of a test rig that is designed and built to emulate drive cycles for measuring the energy consumption of HEVs, especially a vehicle named ELBA from KTH Integrated Transport Research Lab (ITRL). To fulfill this goal, a simplified model is created for the test rig, whose involved parameters are identified through various experiments. Then the model is verified by both step voltage responses and sinusoidal current responses. Meanwhile, vehicle dynamics is modeled to calculate required resistance force for road slope emulation.

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24

Glotin, David. "Retrospective simulations of heating consumption in French dwellings." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235809.

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Res-IRF is an energy-economy model of heating consumption in French dwellings developed at CIRED and calibrated against 2012. It is meant to project the evolution of the building stock and the heating demand by 2050 in response to socio-economic parameters, such as energy price and population, and public policies, such as thermal regulations or incentives for renovation. Res-IRF captures the relevant determinants of household decisions related to energy efficiency improvements and energy demand (sufficiency). The aim of the work presented in this report is to calibrate the model against a past

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25

Gupta, 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.

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Indonesia’s energy demand has been growing rapidly driven by increasing population, urbanization, and rapid economic growth. With increasing energy demand, the emissions associated with the energy sector continue to increase. With the gradual increase in demand and dominant share of fossil fuels in the energy mix, implementing the energy efficiency measures is crucial for Indonesia to achieve its energy and climate goals. From the policy perspective, National Energy plan of Indonesia aims to achieve higher levels of energy efficiency to reduce the overall energy intensity. Indonesia also has c

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Syed, Khurram Raza. "Electrochemical generation of hydrogen." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/13813.

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Global warming and the energy crisis are two of the greatest challenges on which mankind is currently focused. This has forced governments and other organisations to think how to protect the environment and how to reduce fuel costs. A variety of new and exciting technologies are being investigated to address the energy problem. Alternative energy sources such as solar power, fuel cells, wind power and tidal waves are active areas of commercial and scientific pursuit. A major area of current research is moving towards the hydrogen economy and hydrogen based energy systems. Hydrogen can be produ

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Bisoto, Tatiana. "Preparação e caracterização de membranas cerâmicas compostas tubulares para aplicação na separação de gases." reponame:Repositório Institucional da UCS, 2014. https://repositorio.ucs.br/handle/11338/899.

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Este trabalho tem como objetivo preparar membranas compostas de α-alumina recobertas com paládio usando a técnica de deposição química electroless plating associada ao método sol-gel. Foram realizados tratamentos térmicos a 1450°C nos suportes cerâmicos em 6, 12, 18, 24 e 30 h visando verificar a influência do tempo na porosidade do mesmo. Foram preparadas membranas compostas, alumina-Pd com uma, duas e três camadas de paládio na superfície externa do suporte cerâmico, em que o suporte e as membranas foram caracterizados por: análise morfológica realizada por Microscopia Eletrônica de Varredur

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28

Прокоф'єва, Г. М., А. С. Сеннік, Н. В. Книш та В. В. Петрова. "Інтенсифікація використання паливно-енергетичних ресурсів при експлуатації компресорної техніки". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66517.

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До глобальних проблем розвитку сучасних технологій в базових галузях промисловості відносяться збільшення ефективності використання паливно- енергетичних ресурсів, а також коефіцієнтів використання техніки з одночасним вирішенням екологічних задач. При експлуатації компресорної техніки відбувається аерозольне забруднення внутрішніх елементів газоповітряних трактів, що сприяє збільшенню їх енерговитрат та зниженню потужності і надійності установок через активізацію корозійних та ерозійних процесів.

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29

Balagurunathan, Jayakishan. "Investigation of Ignition Delay Times of Conventional (JP-8) and Synthetic (S-8) Jet Fuels: A Shock Tube Study." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1330351552.

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30

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 fea

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Eklund, Robert, and Louise Videhult. "Finns det en framtid för bränslepellets? : Utvärdering av ekonomi och arbetsinsats hos småhusägare." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96735.

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Detta arbete utvärderar bränslepellets ekonomiskt och arbetsmässigt gentemot andra konkurrerande uppvärmningssätt vilket i främsta hand är värmepumps-tekniken. Resultatet av studien visade att bränslepellets inte gav samma nöjdhet som värmepumpstekniken, rent ekonomiskt så var det värmepumpsteknik som var det mest driftekonomiska alternativet. Elpriser och effektdebitering gör att bränsle pelletsen i framtiden förmodas bli ett fördelaktigt val av värmekälla.

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Daun, Kevin. "Impact of energy storage technologies in a distribution grid : An analysis of Key Performance Indicators relating to a local grid’s performance characteristics." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55367.

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The energy system is undergoing a transformation on a never before witnessed scale. The changes are driven by global market forces and technological advancements, improving on a seemingly exponential scale. This in turn has led to the price of both renewables and the accompanying technology decrease over time, making the transition into renewables more economically viable. The drawback of variable renewable energy is that it is variable and dependent on the surrounding environment. Therefore, storing the energy during hours of production, to be used at a later stage when energy demand is highe

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Pettersson, Jens. "Brännkammare för träpulver : Teoretisk analys och praktisk försök." Thesis, Växjö University, School of Technology and Design, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1930.

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<p>The thesis describes a completely new biofuel system to generate particle-free heat from combustion of ash-containing biofuel particles at high temperatures.</p><p>The suggested system gives opportunities to introduce biofuels in new areas.</p><p>Main components in the suggested system is a heat radiating combustion chamber intended for pulverized wood, combined with regenerators to extract heat from flue gases and simultaneously preheating the combustion air.</p><p>The thesis contains a description of the suggested system, theoretical considerations, calculations regarding the combustion,

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Hosseinian, Aida. "Thermodynamic Equilibrium Prediction of Corrosion Tendency in Fluidized-Bed Combustion of Solid Waste." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-13619.

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Global warming and air pollution are two issues of greatest concerns to human life in recent years. Environmental concerns and econimal/political independency of fossil fuels have been the driving force of developing interest in renewable resources of energy for many countries. Different type of waste-derived fuels such as biomass, municipal solid waste and industrial waste are interesting energy resources for energy producing companies. There are mainly two main paths when it comes to waste-to-energy industry, which are thermal treatment of waste, as well as biochemical treatment. Thermal tre

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Sen, Gokhan. "Voltage and Current Programmed Modes in Control of the Z-Source Converter." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1226508637.

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Mörk, Felix. "Climate Neutral Roadmap in Fossil Free Competitiveness for Paroc, Sweden : what Paroc can do to meet up with the roadmap from Fossil Free Sweden." Thesis, Högskolan Kristianstad, Fakulteten för naturvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-22107.

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Today’s society is standing in front of a revolution where fossil energy should be replaced with renewable energy. Governmental agencies and policy makers have formed goals and regulations to become greener, and the organisation Fossil Free Sweden has published roadmaps for fossil free competitiveness. Therefore, this report has connected Paroc’s operations with a roadmap for fossil free competitiveness to form a strategic environmental plan. Early, it was recognized that the field was big and a limitation to CO2-emissions during production were established. The facts were gathered mostly thro

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Brundin, Carl. "Alternative energy concepts for Swedish wastewater treatment plants to meet demands of a sustainable society." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-146831.

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This report travels through multiple disciplines to seek innovative and sustainable energy solutions for wastewater treatment plants. The first subject is a report about increased global temperatures and an over-exploitation of natural resources that threatens ecosystems worldwide. The situation is urgent where the current trend is a 2°C increase of global temperatures already in 2040. Furthermore, the energy-land nexus becomes increasingly apparent where the world is going from a dependence on easily accessible fossil resources to renewables limited by land allocation. A direction of the requ

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Holmberg, Rurik. "Survival of the Unfit : Path Dependence and the Estonian Oil Shale Industry." Doctoral thesis, Linköping : Linköping University, Department of Technology and Social Change, 2008. http://www.bibl.liu.se/liupubl/disp/disp2008/arts427s.pdf.

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Sengul, Erce. "Preparation And Performance Of Membrane Electrode Assemblies With Nafion And Alternative Polymer Electrolyte Membranes." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608734/index.pdf.

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Hydrogen and oxygen or air polymer electrolyte membrane fuel cell is one of the most promising electrical energy conversion devices for a sustainable future due to its high efficiency and zero emission. Membrane electrode assembly (MEA), in which electrochemical reactions occur, is stated to be the heart of the fuel cell. The aim of this study was to develop methods for preparation of MEA with alternative polymer electrolyte membranes and compare their performances with the conventional Nafion&reg<br>membrane. The alternative membranes were sulphonated polyether-etherketone (SPEEK), composite,

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Shpakova, Agnessa. "Knowledge management in innovative technology companies : the case of the energy sector." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=29523.

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Knowledge Management (KM) has been extensively researched for more than two decades, however the academic literature is still quite disjoined and fragmented. Companies keep facing repetitive KM-related problems that come at high cost, and the solutions that they find are often reduced to installing a new software package that is expected to facilitate knowledge flow across an organisation. This research departs from a problem observed in practice – a failed KM project in an innovative company, and aims at understanding the reasons behind this failure. It then investigates KM within some of the

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Atanassov, Boris. "Socio-cultural dimensions in household cooking energy choice : Implications for energy transition in Catembe, Mozambique." Thesis, Stockholm University, Department of Human Geography, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-39991.

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<p>This thesis investigates the theoretical dimension of fuel transition in developing countries; and assesses the role of socio-cultural factors as determinants of fuel choice at household level. Past research has focused on income as a determining factor for fuel transition, as depicted by the energy ladder model, and the more development oriented energy leapfrogging model. This thesis challenges this notion by providing empirical evidence from Catembe, Mozambique; suggesting that socio-cultural factors are just as important determinants for household energy transition. By applying psycho-an

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André, Meza Kahn. "Energy flow model for a scrapper conveyor unit." Thesis, KTH, Hållbar produktionsutveckling (ML), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-257954.

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Värmevärden AB is an energy company that distributes district heating. One of their challenges today is to reduce the energy losses and wear that occur in the plant's scrapper conveyor unit. The conveyor belt is in constant motion whether it is transporting fuel or going unloaded at idle. An understanding of the module's energy flow needs to be mapped. An energy flow behavior model for the scrapper conveyor unit is presented. The energy flow in the startup sequence when the belt runs at idle and at full load is simulated. The simulations visualize the velocity and acceleration of the belt as a

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Petersen, Abdul Muhaymin. "Comparisons of the technical, financial risk and life cycle assessments of various processing options of sugercane bagasse to biofuels in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20156.

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Thesis (MScEng)--Stellenbosch University, 2012<br>ENGLISH ABSTRACT: Through many years of research, a number of production schemes have been developed for converting lignocellulosic biomass into transport fuels. These technologies have been assessed through a number of techno-economic studies for application in a particular context in terms of the technical and economic feasibility. However, previous studies using these methods have tended to lack vigour in various aspects. Either the energy efficiency of the processes were not maximised through adequate heat integration, or a competing techno

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Holeček, Petr. "Podmínky implementace ekologicky šetrných technologií na trhu automobilů v ČR." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-86089.

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The thesis topic is creating conditions for successful implementation of alternative fuel technologies in passenger cars on the Czech market. Its goal is to develop a comprehensive concept of proposed measures that would create demand for alternative powertrain. It analyzes current situation of the environmental-friendly vehicles market and examines reasons why consumers have not been purposefully searching for these cars so far. The thesis consists of several coherent blocks. The first one deals with general aspects of innovations and development, energy resources, climate protection and car

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NEGRO, MIGUEL L. M. "Impactos da introducao da tecnologia de celulas a combustivel na matriz energetica brasileira visando a geracao de energia eletrica distribuida." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11207.

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Made available in DSpace on 2014-10-09T12:49:30Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:28Z (GMT). No. of bitstreams: 1 09835.pdf: 8473588 bytes, checksum: 4482055e72316557d7c56784328b4f09 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Kaya, Ferhat, and Rezhin Kader. "Overcoming Lock-In and Path Dependency : Hydrogen Energy Transitions." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296557.

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Through the historic usage of fossil fuel, climate impacts have been severe and threaten to disrupt global economies and biological diversity. Hydrogen has emerged as a technology which can enable the productionand storage of renewable energy with no carbon emissions. However, energy transitions are complex as the sector is characterized by lock-in and path dependency due to co-evolution with infrastructure, policy and geography. The purpose of this study is to explore how hydrogen energy can overcome the lock-in and path dependency of fossil fuels. To achieve this, a qualitative single-case s

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Sanga, Godfrey Alois. "Avaliação de impactos de tecnologias limpas e substituição de combustiveis para cocção em residencias urbanas na Tanzania." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264905.

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Orientador: Gilberto De Martino Jannuzzi<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-06T16:21:54Z (GMT). No. of bitstreams: 1 Sanga_GodfreyAlois_M.pdf: 971523 bytes, checksum: 2bed5a0581e8c38cc4126dcaca4366bb (MD5) Previous issue date: 2004<br>Resumo: O objetivo deste trabalho é verificar quantitativamente os impactos de melhoria de eficiência e de substituição de combustíveis para cocção na cidade de Dar es Salaam, na Tanzânia. Neste trabalho foi realizada uma pesquisa, enfocando os países em desenvol

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Raji, Atanda Kamoru. "Performance evaluation and improvement of grid-connected technology." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1198.

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Dissertation (DTech(Electrical Engineering))--Cape Peninsula University of Technology, 2012<br>The confluence of the limited resources of fossil fuels (e.g. coal, oil and natural gas), environmental degradations leading to climate change, security of supplies and fossil fuels high costs have demanded a tremendous efforts on humanity to seek for a sustainable and unlimited natural energy sources. Amongst these renewable energy sources stands out solar energy because of its ubiquitousness. Solar energy is converted to DC electricity by the photovoltaic effect. Photovoltaic (PV) power systems ins

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Silva, Fernando Luiz Gomes da. "Valorização da glicerina como solvente da destilação extrativa para separação de azeótropo etanol-água." Universidade Católica de Pernambuco, 2009. http://www.unicap.br/tede//tde_busca/arquivo.php?codArquivo=196.

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A valorização dos subprodutos como a glicerina e a torta de oleaginosas, originados no processo de produção de biodiesel, tem sido a principal alternativa para tornar esse biocombustível competitivo em relação ao diesel de petróleo. Essa alternativa pode estar associada a uma vantajosa integração de processos, como é o caso de utilização da glicerina como solvente para separação da mistura etanol-água em usinas de álcool. Para isso, estudou-se a utilização da glicerina em substituição ao etilenoglicol, esta última substância de origem fóssil. A glicerina elimina o azeótropo formado pela modifi

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Hiegemann, Heinz Dietmar [Verfasser], Marc [Gutachter] Wichern, and Sven [Gutachter] Kerzenmacher. "Optimization and scale up of microbial fuel cell technology towards municipal wastewater treatment plant integration / Heinz Dietmar Hiegemann ; Gutachter: Marc Wichern, Sven Kerzenmacher ; Fakultät für Bau- und Umweltingenieurwissenschaften." Bochum : Ruhr-Universität Bochum, 2019. http://d-nb.info/119522138X/34.

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