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Dissertations / Theses on the topic 'Diesel motor – Fuel systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 January 2023

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1

Arter, Micah. "The effects of diesel fuel density on fuel consumption measurements of portable in-use emissions measurement systems." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5509.

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Thesis (M.S.)--West Virginia University, 2007.<br>Title from document title page. Document formatted into pages; contains vii, 91 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 60-62).

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2

Tran, Xuan-Thien Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Modelling and simulation of electronically controlled diesel injectors." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2003. http://handle.unsw.edu.au/1959.4/19278.

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The study presents a one-dimensional, transient and compressible flow models of a commercial Common Rail Injector (CRI) and a prototype of a single-fuel Hydraulically actuated Electrically controlled Unit Injector (HEUI) developed at the University of New South Wales (UNSW) in conjunction with local industry. The unique feature of the UNSW HEUI is the fact that it uses diesel fuel as the driver for pressure amplification within the unit injector. The work undertaken is part of a wider study aimed at optimization of the design of diesel injectors for dual-fuel systems to reduce green house gas

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3

Chien, Jui-Yu. "The future and outlook of alternative fuel bus industry and its marketing strategy." CSUSB ScholarWorks, 2002. https://scholarworks.lib.csusb.edu/etd-project/2332.

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According to the current governmental regulations, all diesel buses will be replaced in the United States and the European market within the next ten years. There are over 60,000 buses in the United States and each year over 3,000 new buses of approximately 40 feet in length are purchased. The bus market has a growth rate of four to five percent per year over the last two years. The improvements in technology offered by United States companies prove unsatisfactory in terms of bus performance and the emissions of new buses. The energy crisis in the United States and concern over the health haza

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4

Toral, del Rio Maria Isabel. "An analysis of the influence of phosphorus poisoning on the exhaust emission after treatement systems of light-duty diesel vehicles." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/697.

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Climate change has become a discussion topic of exponentially increasing urgency and importance amoung world leaders of all disciplines. These changes are brought about by the emission of so-called Greenhouse gases from various human activities. The primary cause of CO2 emissions is the burning of the Earth’s supply of nonrenewable natural fossil fuels like coal, oil and natural gas. The world first agreed on the prevention of “dangerous” climatic changes at the Earth Summit in 1992. The Kyoto Protocol of 1997 was the first step toward protection of the atmosphere and prescribes restrictions o

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5

Douxchamps, Pierre-Alexis. "Diesel thermal management optimization for effective efficiency improvement." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210123.

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This work focuses on the cooling of diesel engines. Facing heavy constraints such<p>as emissions control or fossil energy management, political leaders are forcing car<p>manufacturers to drastically reduce the fuel consumption of passenger vehicles. For<p>instance, in Europe, this fuel consumption has to reach 120 g CO2 km by 2012, namely 25 % reduction from today's level.<p>Such objectives can only be reached with an optimization of all engines components<p>from injection strategies to power steering. A classical energy balance of an internal<p>combustion engine shows four main losses: enthal

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6

Kotze, Johan. "A comparative study on the performance of biodiesel in a modern 1.9L turbo diesel engine." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4293.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: This thesis comprises of the testing and evaluation of a modern diesel engine running on both biodiesel and mineral diesel on the upgraded Bio-fuels Testing Facility (BTF) at Stellenbosch University. The project was motivated by the need to install a modern diesel engine onto the existing BTF test rig for biodiesel testing. In this project, the BTF was re-designed to support a new Volkswagen 1.9L TDI engine. The capabilities of the BTF were then expanded further by the implementatio

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7

Strouhal, Pavel. "Aplikace vysokotlakého palivového systému na vznětový motor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254441.

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This diploma thesis is focused on examining the development of a diesel tractor engine with a newer injection system, concretely common-rail system. Mainly it is about the application of the high pressure fuel pump, fuel rail and injectors. With regard to the used components are appropriate adjustments made on the engine, and then checked using the available calculations. Brief mention is given to the theoretical summary of the contemporary state of applied injection system and its development trend. Selecting adjustments is primarily based on observed operating load. However, it is also striv

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8

Tugsal, Umut. "FAULT DIAGNOSIS OF ELECTRONIC FUEL CONTROL (EFC) VALVES VIA DYNAMIC PERFORMANCE TEST METHOD." ProQuest, 2009. http://hdl.handle.net/1805/2094.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Electronic Fuel Control (EFC) valve regulates fuel flow to the injector fuel supply line in the Cummins Pressure Time (PT) fuel system. The EFC system controls the fuel flow by means of a variable orifice that is electrically actuated. The supplier of the EFC valves inspects all parts before they are sent out. Their inspection test results provide a characteristic curve which shows the relationship between pressure and current provided to the EFC valve. This curve documents the steady state characteristics of the valve but does not a

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9

Gill, Simaranjit Singh. "Controlling diesel NO_x & PM emissions using fuel components and enhanced aftertreatment techniques : developing the next generation emission control system." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3643/.

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The following research thesis focuses on methods of controlling nitrogen oxides (NO_x) and particulate matter (PM) emissions emitted from a low temperature diesel exhaust. This involves studying the influence of hydrogen (H₂) on various aftertreatment devices such as hydrocarbon selective catalytic reduction (HC-SCR) over silver-alumina (Ag-Al₂O₃) catalysts for lean NO_x reduction, platinum diesel oxidation catalysts (DOC) for nitrogen dioxide (NO₂) production and passive regeneration methods for the diesel particulate filter (DPF). H₂ was implemented on-board either through diesel exhaust gas

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10

Bilha, Vitor Meira. "Análise do processo de retificação interna aplicado à fabricação de bicos injetores diesel." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1889.

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A utilização mais eficiente dos recursos naturais tem levado a indústria a aumentar a eficiência dos produtos manufaturados. Veículos de transporte Diesel estão incluídos neste cenário. Nos motores Diesel, um componente importante do sistema de injeção é o bico injetor. Uma legislação recente no Brasil introduziu limites de emissões EURO5. Estes novos parâmetros tiveram impacto no projeto do bico injetor com tolerâncias sendo reduzidas, em especial na área da sede do corpo do bico injetor, alterando o parâmetro funcional de pressão de abertura do produto. Neste cenário, o impacto desta superfí

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11

Park, Talus. "Dual fuel conversion of a direct injection diesel engine." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=460.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains x, 96 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 61-62).

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12

Rosa, Josimar Souza. "Estudo de um motor ciclo diesel monocilíndrico bi-combustível." Universidade do Vale do Rio dos Sinos, 2014. http://www.repositorio.jesuita.org.br/handle/UNISINOS/3459.

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Submitted by Maicon Juliano Schmidt (maicons) on 2015-05-07T16:35:35Z No. of bitstreams: 1 Josimar Souza Rosa.pdf: 2316699 bytes, checksum: 10b8be8bf5285234719e629c53ebeb82 (MD5)<br>Made available in DSpace on 2015-05-07T16:35:35Z (GMT). No. of bitstreams: 1 Josimar Souza Rosa.pdf: 2316699 bytes, checksum: 10b8be8bf5285234719e629c53ebeb82 (MD5) Previous issue date: 2014-03-21<br>Nenhuma<br>Este trabalho buscou analisar o funcionamento de um motor de combustão interna (ciclo Diesel) operando com misturas parciais de óleo diesel com gás natural veicular, e óleo de soja com gás natural veic

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13

Payne, Simon Daniel. "Experimental studies of diesel particulate filtration." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610170.

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14

Nuszkowski, John. "The effects of fuel additives on diesel engine emissions during steady state and transient operation." Morgantown, W. Va. : [West Virginia University Libraries], 2008. http://hdl.handle.net/10450/5809.

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Thesis (Ph. D.)--West Virginia University, 2008.<br>Title from document title page. Document formatted into pages; contains xviii, 144 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 106-113).

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15

Sinuka, Yonwaba. "Performance testing of a diesel engine running on varying blends of jatropha oil, waste cooking oil and diesel fuel." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2436.

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Thesis (MTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2016.<br>The high cost of fossil fuels and the fact that the world has arguably reached its peak oil production, has driven the need to seek alternative fuel sources. The main objective of the current study is to determine the performance of a laboratory-mounted diesel engine when fuelled with varying laboratory prepared biofuel and biodiesel and whether the advancement of the injection timing parameters will improve the engine power output and improve the smoke effect of these different fuel blends. The labora

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16

Pianthong, Kulachate Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Supersonic liquid diesel fuel jets : generation, shock wave characteristics, auto-ignition feasibilities." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2002. http://handle.unsw.edu.au/1959.4/20325.

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It is well known that high-speed liquid jetting is one of the most powerful techniques available to cut or penetrate material. Recently, it has been conjectured that high-speed liquid jets may be beneficial in improving combustion in such applications as SCRAM jets and direct injection diesel engines. Although there are practical limitations on maximum jet velocity, a fundamental study of the characteristics of high-speed liquid fuel jets and their auto-ignition feasibility is necessary. Important benefits could be increased combustion efficiency and enhanced emission control from improved ato

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17

Broman, Robert, and Karl Rosenlind. "ESC-analys och studering av knack på en "Diesel Dual Fuel"-motor." Thesis, KTH, Maskinkonstruktion (Inst.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99784.

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A one-cylinder research engine has been used for studies with a Diesel Dual Fuel concept (DDF). DDF is a concept that utilizes a pilot diesel injection to ignite a homogenous natural gas/air mixture. Emissions and engine efficiency have been analyzed in an emission cycle called European Stationary Cycle (ESC) and the knock/pre-ignition problems with this type of engine have been investigated. At low and mid torque levels, an early diesel injection around 60 crank angles degrees (CAD) before top dead center (TDC) was used. At these loads raw NO xemissions was below EURO 6 level (0.2 g/kWh). NOx

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18

Baniasad, Mohammad Saeid. "Analysis of fuel injection rate in diesel injection systems." Thesis, Imperial College London, 1994. http://hdl.handle.net/10044/1/7439.

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19

Ng, Tze-on. "A study of sustainable fuel in public transport : the case of public light buses in Hong Kong /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B23339743.

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20

Araujo, Jorge Paulo Dantas de. "A aplicação de planejamento estatístico multivariado no desenvolvimento de componentes do motor Diesel." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263185.

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Orientador: Roy Edward Bruns<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-18T15:22:35Z (GMT). No. of bitstreams: 1 Araujo_JorgePauloDantasde_M.pdf: 2024692 bytes, checksum: d5669168a2ce24885a57c2fa7cf830b8 (MD5) Previous issue date: 2011<br>Resumo: O processo de desenvolvimento de motores Diesel vem sendo cada vez mais estudado e aprimorado dentro da Indústria. A busca por ferramentas que possam reduzir o tempo de desenvolvimento e também otimizar o trabalho para atingir requisitos de desem

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21

Belizário, Adenilson Cristiano. "Avaliação da confiabilidade do motor diesel com a adição de sistemas de injeção de gás na câmara de combustão." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3151/tde-24092012-171716/.

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Visando a redução de poluentes emitidos pelos motores de combustão interna com ignição por compressão, que operam conforme o ciclo diesel, foram desenvolvidos nos últimos anos dispositivos para a operação destes motores com novos combustíveis, que além da redução de poluentes barateariam o custo de operação, devido à oportunidade de utilização de alguns combustíveis com boa disponibilidade. No presente estudo analisa-se a operação do motor diesel utilizando gás natural como combustível. Neste caso utiliza-se o óleo diesel apenas como combustível piloto, que será responsável pela ignição do seg

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22

Laeeq, Muhammad Nadeem. "Performance evaluation of dryer units used in diesel emission measurement systems." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4208.

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Thesis (M.S.)--West Virginia University, 2005.<br>Title from document title page. Document formatted into pages; contains viii, 82 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 79-82).

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23

Bolyard, Jason D. "Evaluation of an air-to-fuel ratio derived exhaust flow rate for in-use emissions testing." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4302.

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Thesis (M.S.)--West Virginia University, 2005.<br>Title from document title page. Document formatted into pages; contains xi, 88 p. : ill. (some col.), col. map. Includes abstract. Includes bibliographical references (p. 59-63).

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24

Reddy, Varakala Shashidhar. "Evaluation of current and early production electronically controlled heavy-duty diesel engine emissions based on fuel property differences." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4718.

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Thesis (M.S.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains ix, 89 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 67-70).

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25

Skawinski, Grzegorz. "Fuel pump motor-drive systems for more electric aircraft." Thesis, University of Bath, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527520.

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The fuel systems fitted to the current generation of civil transport aircraft are rather complicated, due to the presence of multiple tanks, pumps, valves and complex pipeline systems. During fuel transfer between the tanks, when controlling the aircraft centre of gravity or engine feed and refuel operations, a number of pumps and valves are involved resulting in complex pressure and flow interactions. In order to minimise the pressure surges during sudden system changes and flow overshoot during fuel transfer and refuelling, different motor drive system control strategies have been investigat

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26

Kersting, Lee. "Characterizing the Operation of a Dual-Fuel Diesel-Hydrogen Engine near the Knock Limit." Thesis, North Dakota State University, 2014. https://hdl.handle.net/10365/27572.

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A CAT C6.6 turbocharged diesel engine was operated in dual-fuel diesel-hydrogen mode. Hydrogen was inducted into the intake and replaced a portion of the diesel fuel. Hydrogen was added across multiple engine speeds and loads until reaching the knock limit, identified by a threshold on the rate of in-cylinder pressure rise. In-cylinder pressure and emissions data were recorded and compared to diesel-only operation. Up to 74% H2 substitution for diesel fuel was achieved. Hydrogen addition increased thermal efficiency up to 32.4%, increased peak in-cylinder pressure up to 40.0%, increased the ma

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27

Evans, Jason Carter. "Influence of fuel sulfur content on emissions from diesel engines equipped with oxidation catalysts." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1594.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains xii, 140 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 83-84).

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28

Staples, Mark Douglas. "Water consumption footprint and land requirements of alternative diesel and jet fuel." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81130.

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Thesis (S.M. in Technology and Policy)--Massachusetts Institute of Technology, Engineering Systems Division, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 101-110).<br>The Renewable Fuels Standard 2 (RFS2) is an important component of alternative transportation fuels policy in the United States (US). By mandating the production of alternative fuels, RFS2 attempts to address a number of imperfections in the transportation fuels market: US economic vulnerability to volatile prices; security and environmental externalities; and a lack of investment in a

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29

Liew, ChetMun. "An investigation of hydrogen supplementation on combustion and emissions of heavy-duty diesel engines." Morgantown, W. Va. : [West Virginia University Libraries], 2010. http://hdl.handle.net/10450/11261.

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Thesis (M.S.)--West Virginia University, 2010.<br>Title from document title page. Document formatted into pages; contains xvi, 130 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 122-124).

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30

Hamedi, Mohammadreza. "Advanced thermal management of diesel aftertreatment systems." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/7059/.

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State-of-the-art diesel exhaust gas aftertreatment systems have proved to substantially decrease vehicles’ emissions. However, their effectiveness depends on the temperature of the exhaust gas and catalysts to activate the emissions’ conversion reactions. In this research study, different strategies for thermal management of diesel aftertreatment systems were investigated to reduce vehicles’ emissions. A thermal energy storage (TES) system was developed and implemented for a light-duty diesel aftertreatment system. In this approach, the extra thermal energy of the exhaust gas during engine’s h

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31

Fung, Kin-lin. "A review of the effectiveness of the Government LPG Taxi Scheme as a fuel switch program for cleaner air : its implication for public acceptance and for future policies /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21301864.

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32

Svensson, Kenth Ingemar. "Effects of Fuel Molecular Structure and Composition on Soot Formation in Direct-Injection Spray Flames." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd830.pdf.

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33

Clark, Lee A. "Experimental studies and systems modelling to investigate the behaviour of direct injection diesel engines." Thesis, University of Nottingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289480.

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Bomfati, Bruna Martins. "Desempenho de motor diesel com óleo vegetal de Crambe (Crambe abyssinica hochst) pré-aquecido." Universidade Estadual de Ponta Grossa, 2018. http://tede2.uepg.br/jspui/handle/prefix/2511.

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Chen, Pingen. "Modeling, Estimation and Control of Integrated Diesel Engine and Aftertreatment Systems." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1416323165.

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Castellanelli, Márcio. "Desempenho de motor Ciclo diesel em bancada dinamométrica utilizando Biodiesel etílico de soja." Universidade Estadual do Oeste do Parana, 2006. http://tede.unioeste.br:8080/tede/handle/tede/393.

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Made available in DSpace on 2017-05-12T14:48:30Z (GMT). No. of bitstreams: 1 Marcio Castellanelli.pdf: 1580041 bytes, checksum: b88f98c62541a81dbb056e3bbb1905a3 (MD5) Previous issue date: 2006-07-27<br>Ahead of the forecast of scarcity of the oil, the ethyl ester (biodiesel) if has presented as an excellent alternative fuel option for engines cycle diesel. The characteristics of biodiesel are similar of diesel in terms of viscosity and the calorific power, being able to be used without adaptations in the engines. For accomplishment of this work, a motor cycle was used diesel, of direct injec

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Ahlgren, Serina. "Crop production without fossil fuel : production systems for tractor fuel and mineral nitrogen based on biomass /." Uppsala : Dept. of Energy and Technology, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200978.pdf.

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Oliveira, Marcelo Santana. "Estudo da influência dos acessórios no desempenho dos motores diesel turboalimentados." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264379.

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Orientador: Franco Giuseppe Dedini<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-16T15:37:35Z (GMT). No. of bitstreams: 1 Oliveira_MarceloSantana_M.pdf: 5470520 bytes, checksum: 648b5d28ae39f23b5cb3aee6e6370c71 (MD5) Previous issue date: 2010<br>Resumo: O motor Diesel é a fonte de potência primária de veículos comerciais (leves ou pesados), portanto deve-se dele conhecer, de forma abrangente, o desempenho em função da rotação e das condições de operação desejadas. A construção de um modelo t

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Nilsson, Marita. "Hydrogen Generation for Fuel Cells in Auxiliary Power Systems." Doctoral thesis, KTH, Kemiteknik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10024.

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Heavy-duty trucks are in idle operation during long periods of time, providing the vehicles with electricity via the alternator at standstill. Idling trucks contribute to large amounts of emissions and high fuel consumption as a result of the low efficiency from fuel to electricity. Auxiliary power units, which operate independently of the main engine, are promising alternatives for supplying trucks with electricity. Fuel cell-based auxiliary power units could offer high efficiencies and low noise. The hydrogen required for the fuel cell could be generated in an onboard fuel reformer using the

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Delalibera, Hevandro Colonhese. "UTILIZAÇÃO DE ÓLEO DE GIRASSOL COMO COMBUSTÍVEL EM UNIDADE DE POTÊNCIA MONOCILINDRO CICLO DIESEL." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2009. http://tede2.uepg.br/jspui/handle/prefix/2195.

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Made available in DSpace on 2017-07-25T19:29:42Z (GMT). No. of bitstreams: 1 HEVANDRODELALIBERA.pdf: 1991168 bytes, checksum: 70b0a9b14552766c3ef2f056353f43ad (MD5) Previous issue date: 2009-03-31<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The many oil crises that have occurred in the past decades and the dependence of the Brazilian energy matrix on fossil fuels, as well as the environmental problems caused by their use, have pressed for advances in the search for new alternative fuels and, in a way, also made them possible. Fuels made from vegetable oils are particu

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Ramos, Diego Berlezi. "Controlador nebuloso para motor de ignição por compressão operando com gás natural e óleo diesel." Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/8607.

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A foreseeable shortage of petroleum, associated to a growing ecological conscience, demand for alternative sources of energy and more efficient and less pollutant combustion processes. Among the few pollutant fuels this work approaches the combination of natural gas, whose consumption has been increasing year to year, and diesel. It is known that the internal combustion engines convert energy with low efficiency. Based on that, this work evaluates a bi-fuel Diesel engine, power by Diesel and natural gas as means of improving its efficiency. In the engine used as a prototype, the main energy co

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Källkvist, Kurt. "Fuel Pressure Modelling in a Common-Rail Direct Injection System." Thesis, Linköpings universitet, Fordonssystem, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-70264.

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The fuel pressure is one of the central control variables of a modern common-rail injection system. It influences the generation of nitrous oxide and particulate matter emissions, the brake specific fuel consumption of the engine and the power consumption of the fuel pump. Accurate control of the fuel pressure and reliable diagnostics of the fuel system are therefore crucial components of the engine management system. In order to develop for example control or diagnostics algorithms and aid in the understanding of how hardware changes affect the system, a simulation model of the system is desi

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Zakaria, Rami. "Jet fuel spray characterisation using optical methods : an experimental study of high speed fuel injection systems in small rotary engines." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/54103/.

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This thesis was initiated by the need to develop a stable low vibration engine with a high power to weight ratio. A new rotary (Wankel) engine was chosen to meet these requirements. A further operating criterion was that the engine was required to use JP8 (aviation fuel). The difficulty created by the use of JP8 is that its combustion temperature is higher than other conventional fuels, and preheating is necessary, especially in the case of cold start. Thus, the question posed was, could a more appropriate and efficient method of fuel delivery be devised? This thesis presents the design and co

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Souza, Carolina Vieira de. "Perfil dos HPA prioritários na exaustão de veículo a diesel, no combustível diesel utilizado durante os ensaios de emissão veicular e no óleo lubrificante do motor." Universidade do Estado do Rio de Janeiro, 2015. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=9430.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>As concentrações na exaustão e os fatores de emissão dos hidrocarbonetos policíclicos aromáticos (HPA) prioritários de um veículo a diesel e as suas respectivas concentrações no diesel usado durante os ensaios de emissão veicular foram determinados com a finalidade de estimar a contribuição dos HPA provenientes do combustível nas emissões. Os produtos da combustão foram coletados diretamente nas emissões brutas do escapamento, utilizando um sistema de amostragem a volume constante sem diluição dos gases da exaustão. Os HPA associad

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Burke, Richard D. "Investigation into the interactions between thermal management, lubrication and control systems of a diesel engine." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.545325.

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Engine thermal and lubricant systems have only recently been a serious focus in engine design and in general remain under passive control. The introduction of active control has shown benefits in fuel consumption during the engine warm-up period, however there is a lack of rigorous calibration of these devices in conjunction with other engine systems. For these systems, benefits in fuel consumption (FC) are small and accurate measurement systems are required. Analysis of both FC and NOx emissions measurements processes was conducted and showed typical errors of 1% in FC from thermal expansion

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Bueno, Andre Valente. "Analise da operação de motores diesel com misturas parciais de biodiesel." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263483.

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Orientadores : Luiz Fernando Milanez, Jose A. Velasquez<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-06T09:13:18Z (GMT). No. of bitstreams: 1 Bueno_AndreValente_D.pdf: 1858642 bytes, checksum: 5d8ef42f35d6898a67cb77a3c73c0b7d (MD5) Previous issue date: 2006<br>Resumo: As conseqüências da adição de biodiesel ao óleo diesel foram estudadas estabelecendo-se relações de causa e efeito entre o desempenho do motor e os processos de combustão e formação de mistura. Foram incluídos, nesta discussão, aspectos como emi

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Monsalve, Serrano Javier. "Dual-fuel compression ignition: towards clean, highly efficient combustion." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/75109.

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The more and more stringent emissions regulations, together with the greater fuel economy demanded by vehicle users, impose a clear objective to researchers and engine manufacturers: look for the maximum efficiency with the minimum pollutant emissions levels. The conventional diesel combustion is a highly efficient process, but also leads to high levels of NOx and soot emissions that require using aftertreatment systems to reduce the final levels released to the environment. Since these systems incur in higher costs of acquisition and operation of the engine, the scientific community is worki

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Hetreed, Christopher F. "Internal flow investigation of an aft finocyl grain configuration in a solid rocket motor." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/46038.

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<p>Cold-flow tests were conducted in mediums of air and water to investigate the internal flow field about the nozzle region of a proposed solid rocket motor (SRM) configuration that would potentially replace the current external boosters on NASA's Space Shuttle. One-eighth-scale clear acrylic models of the proposed submerged aft-dome and aft finned grain elements were constructed to simulate the aft segment of the SRM at ignition and 35 seconds into the firing sequence. Pressure, velocity, and turbulence profiles were obtained during cold air testing, while air bubbles and dye were used f

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Aksu, Cagdas. "Performance Analysis Of A Compression Ignition Internal Combustion Engine Using Superheated Ethanol Vapor." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613255/index.pdf.

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The aim of this study is to experimentally measure performance characteristics of a compression ignition (CI) internal combustion engine using superheated ethanol vapor. The engine is a 1.3L inline 4 cylinder direct injection (DI) turbocharged compression ignition (CI) engine. While the engine will be fed with superheated ethanol as homogeneous fuel-air mixture through intake manifold, the amount of diesel fuel that the engine requires to run at idle will also be supplied in order to initiate combustion. Ethanol will be superheated using a new patented double heat exchanger has been manufactur

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Belloto, Humberto Jesuino. "Análise de falhas em tubos sem costura de aço St52 utilizados em motores diesel." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265045.

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Orientador: Paulo Roberto Mei<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-19T00:26:25Z (GMT). No. of bitstreams: 1 Belloto_HumbertoJesuino_M.pdf: 5308190 bytes, checksum: 1a5267190a7db08ed3b659370b64f95a (MD5) Previous issue date: 2011<br>Resumo: O tubo de aço carbono com alto teor de manganês St52 (Norma DIN 1.0580) sem costura, com 8 mm de diâmetro externo e 3 mm de diâmetro interno, atualmente utilizado no sistema de combustível de motores eletrônicos a diesel com pressões de trabalho de até 1300 ba

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