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Dissertations / Theses on the topic 'Diesel engine emissions'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Alfieri, Ezio. "Emissions-controlled diesel engine /." Zürich : ETH, 2009. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18214.

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2

Amandus, Nicholas P. "Locomotive emissions effects due to engine configuration." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=3072.

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Thesis (M.S.)--West Virginia University, 2003.<br>Title from document title page. Document formatted into pages; contains xiii, 164 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 85-87).

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3

Westlund, Anders. "Measuring and Predicting Transient Diesel Engine Emissions." Licentiate thesis, KTH, Machine Design (Div.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10202.

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<p> </p><p>Due to its impact on human health and the nature surrounding us, diesel engine emissions have been significantly reduced over the last two decades. This reduction has been enforced by the legislating organs around the world that gradually have made the manufacturers transform their engines to today’s complex high-tech products. One of the most challenging areas to meet the legislations is transient operation where the inertia in gas-exchange system makes transition from one load to another problematic.</p><p> </p><p>Modern engines have great potential to minimize the problems associ

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4

Mirmohammadsadeghi, Mahmoudreza. "Investigation of diesel-ethanol and diesel-gasoline dual fuel combustion in a single cylinder optical diesel engine." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/17436.

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Ever growing population and increased energy consumption across all industries has resulted in higher atmospheric concentration of the greenhouse gases (GHG) and therefore an increase in the planet's average temperature, which has led to increasingly demanding and more strict legislations on pollutant sources, and more specifically, the automotive industry. As a consequence of all this, the demand for research into alternative energy sources has greatly increased. In this study combustion characteristics, engine performance, and exhaust emission of diesel-ethanol and diesel-gasoline are invest

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5

Canfield, C. Alan. "Effects of diesel-water emulsion combustion on diesel engine NOx emissions." [Florida] : State University System of Florida, 1999. http://etd.fcla.edu/etd/uf/1999/amg2169/canfield%5Fc.pdf.

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Thesis (M.S.)--University of Florida, 1999.<br>Title from first page of PDF file. "X" in "NOx" in title is subscript. Document formatted into pages; contains vii, 85 p.; also includes graphics. Vita. Includes bibliographical references (p. 79-84).

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6

Tornehed, Petter. "Particulate Emissions Associated with Diesel Engine Oil Consumption." Doctoral thesis, KTH, Maskinelement, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-25880.

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Particulate emissions from diesel engines have been a key issue for diesel engine developers in recent decades. Their work has succeeded in reducing the exhaust particles from the combustion of fuel, which has led to increasing interest in the contribution of particulates from lubrication oil. When discussing oil-related particulate emissions, hydrocarbon particles are customarily referred to. This thesis uses a broader definition, in which oil-related particulate emissions are modelled not only by the hydrocarbons, but also include the ash, carbons, and sulphate oil particulate emissions. The

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7

Acar, Joseph 1977. "Effect of engine operating parameters and fuel characteristics on diesel engine emissions." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/30319.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.<br>Includes bibliographical references (leaf 32).<br>To examine the effects of using synthetic Fischer-Tropsch (FT) diesel fuel in a modern compression ignition engine, experiments were conducted on a MY 2002 Cummins 5.9 L diesel engine outfitted with high pressure, common rail fuel injection, a variable geometry turbo charger, cooled EGR and a fully configurable engine management computer. Additionally, the effect of varied injection timing and EGR rates were studied to examine how the engine can be o

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8

Sanders, Matthew Graham. "Analytical applications of the peroxyoxalate chemiluminescence reaction." Thesis, University of Plymouth, 1999. http://hdl.handle.net/10026.1/1832.

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The overall objectives of this thesis were to investigate the potential of the peroxyoxalate chemiluminescence (POOL) reaction for the quantitative detection of target analytes in non-aqueous matrices and to compare quantitative performance with fluorescence detection. The target analytes investigated were polycyclic aromatic hydrocarbons (PAHs) and aliphatic amines. These were selected as an important class of compounds in engine exhaust emissions and a detergent additive in diesel fuel respectively. Chapter one outlines the challenges of analysing petroleum products and engine exhaust emissi

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9

Lindström, Mikael. "Methods for Characterization of the Diesel Combustion and Emission Formation Processes." Doctoral thesis, KTH, Maskinkonstruktion (Avd.), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-34140.

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In this thesis various aspects of the diesel engine fuel injection, combustion and emission formation processes have been evaluated. Several types of evaluation tools and methods have been applied. Fuel spray momentum was used to characterize injection rate and hole-to-hole variations in fuel injectors. Using both instantaneous fuel impulse rates and instantaneous mass flow measurements, spray velocity and nozzle flow parameters were evaluated. Several other hole-to-hole resolved injector characterization methods were used to characterize a set of fuel injectors subjected to long term testing.

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10

Tompkins, Brandon T. "Emissions comparison between petroleum diesel and biodiesel in a medium-duty diesel engine." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2350.

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11

Johansson, Petter. "Oil-related Particle Emissions from Diesel Engines." Licentiate thesis, Stockholm : Maskinkonstruktion, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9287.

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12

Cheng, Yu. "Lower emissions from a biodiesel and microemulsion fuelled diesel engine." Thesis, University of Surrey, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510574.

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Biodiesel produced by the transesterification of vegetable oils (sunflower oil) with methanol is a promising alternative fuel to diesel because of the limited resources of fossil fuel and environmental concerns. A base or acid catalyst is usually used to improve the reaction rate and yield. In this work, comparative studies on homogeneous (NaOH) and heterogeneous (CaO based) catalysts were undertaken at the same reaction conditions (1% catalyst dosage, oil/methanol mole ratio = 1/9,333K water bath). It was found that the NaOH took a shorter time to achieve 95% oil conversion than CaO based cat

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13

Kingston, Shaun Thomas. "Genotoxicology of diesel engine exhaust emissions in cultured mammalian cells." Thesis, University of Plymouth, 1994. http://hdl.handle.net/10026.1/2131.

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Diesel exhaust emissions were collected from a 2 litre direct injection diesel engine using the Total Exhaust Solvent Scrubbing Apparatus (TESSA). Emission samples were collected from a series of two minute engine runs, at a variety of engine speeds and loads which covered the full operating range of the engine. The exhaust extracts collected were then tested for their cytotoxicity and mutagenic potential in cultured Chinese hamster cells. Emission samples were found to be extremely toxic, with most causing 100% cytotoxicity at concentrations of less than 100 /µg/ml. Chromosome aberration stud

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14

Erkal, Gul. "Comparison Of Engine Performance And Emissions For Conventional Petroleum Diesel Fuel And Diesel-ethanol Blends." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611836/index.pdf.

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Ethanol is an environmental friendly alternative diesel fuel that has received significant attention both as a possible renewable alternative fuel and as an additive to existing petroleum-based fuels. Beyond simply representing an additional fuel supply, ethanol exhibits several advantages when compared to existing petroleum fuel. The objective of this work is to investigate experimentally the effects of using different blends of specified percentages of ethanol on the engine performance and emissions and to compare it with that of conventional diesel fuel. Tests will be done on the &lsquo<br>

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15

Bane, Bradley R. "A comparison of steady state and transient emissions from a heavy-duty diesel engine." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2269.

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Thesis (M.S.)--West Virginia University, 2002.<br>Title from document title page. Document formatted into pages; contains xiv, 173 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 158-160).

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16

Schmidt, Kristina (Kristina E. ). "After treatment and turbocharger effects on emissions of a diesel engine." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/115455.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.<br>DISCLAIMER NOTICE: The pagination in this thesis reflects how it was delivered to the Institute Archives and Special Collections, Massachusetts Institute of Technology. Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>An experimental study on the effects of after treatments and a turbocharger on emissions of a single cylinder diesel engine. The study measured the concentration of CO, CO2, HC, NO, NO2, and NOx. Tests on the engine were performed at different engine

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17

Adolfson, Magnus. "Simulation of Emission Related Faults on a Diesel Engine." Thesis, Linköping University, Department of Electrical Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1506.

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<p>Today's legislation on exhaust gas emissions for heavy duty diesel (HDD) vehicles is more stringent than ever and will be even more tough in the future. More over, in a few years HDD vehicles have to be equipped with OBD (On-Board Diagnostics). This place very high demands on the manufacturers to develop better engines and strategies for OBD. As an aid in the process models can be used. </p><p>This thesis presents extensions of an existing diesel engine model in Matlab/Simulink to be able to simulate emissions during standardized european test cycles. Faults in the sensor and actuator signa

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18

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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19

McConnell, Thomas G. "Simultaneous evaluation of multiple PEMS using an engine dynamometer emissions test cell." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5212.

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Thesis (M.S.)--West Virginia University, 2007.<br>Title from document title page. Document formatted into pages; contains xii, 107 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 90-93).

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20

Gibble, John Curtis. "Comparison of heavy-duty diesel engine emissions between an on-road route and engine dynamometer simulated on-road cycle." Morgantown, W. Va. : [West Virginia University Libraries], 2003. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3016.

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Thesis (M.S.)--West Virginia University, 2003.<br>Title from document title page. Document formatted into pages; contains xi, 101 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 72-76).

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21

Tehranian, Azadeh. "Effects of artificial neural networks characterization on prediction of diesel engine emissions." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=2956.

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Thesis (M.S.)--West Virginia University, 2003.<br>Title from document title page. Document formatted into pages; contains xxii, 198 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 110-116).

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22

Ursic, Michael. "Influence of accelerator pedal position control on heavy duty diesel engine emissions and performance." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10259.

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Thesis (M.S.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains x, 97 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 73-74).

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23

Bernemyr, Hanna. "Volatility and number measurement of diesel engine exhaust particles." Doctoral thesis, Stockholm : Maskinkonstruktion, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4482.

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24

Bruce), Laurence Ronald B. (Ronald. "The effect of lubrication system and marine specific factors on diesel engine emissions." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12110.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1994, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.<br>Includes bibliographical references (p. 63-64).<br>by Ronald B. Laurence, Jr.<br>M.S.

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25

Gerazounis, Stylianos. "Design and development of a particulate emission monitor." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326226.

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26

Ozdemir, Ali. "Experimental Investigation Of Use Of Canola Oil As A Diesel Fuel." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12609954/index.pdf.

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In this study, canola oil has been selected for the test on a diesel engine and its suitability as an alternative fuel has been examined. To decrease the high viscosity of canola oil, the effect of temperature on viscosity has been researched. Then the fuel delivery system has been modified to heat canola oil before injecting the oil into the combustion chamber. Also, ethanol has been tested as an additive by blending with canola oil. An experimental setup has been installed according to standards to carry out tests. The set up has been controlled with a computer to take measurements more prec

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27

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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28

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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29

Mobasheri, Raouf. "Investigations of advanced injection and combustion strategies on DI diesel engine performance and emissions." Thesis, University of Sussex, 2012. http://sro.sussex.ac.uk/id/eprint/43294/.

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The main driving force behind this research was the need for cleaner and more efficient engines to meet the ever-increasing demands on the modern automobile's emissions. In recent years different studies have been carried out to analyze the combined effects of high-pressure injection, boost pressure, multiple injections, included spray angle and combustion chamber geometry. Though considerable research has shown these technologies can meet the low emission regulations, the careful optimization of the engine operating conditions is still required in order to get the full benefit of the differen

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30

Karra, Prashanth Kumar. "Parametric study and optimization of diesel engine operation for low emissions using different injectors." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3389113.

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31

Reiter, Aaron Jesse. "Combustion and emissions characteristics of a compression-ignition engine using dual ammonia-diesel fuel." [Ames, Iowa : Iowa State University], 2009.

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32

Hemmings, Stephen. "Supporting the regeneration process of a diesel particulate filter with the addition of hydrogen and hydrogen/carbon monoxide mixtures : diesel engine aftertreatment system." Thesis, Brunel University, 2012. http://bura.brunel.ac.uk/handle/2438/7073.

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This investigation aims to enhance the regeneration performance of a diesel particulate filter. This is achieved by introducing various chemical components to the regeneration process, which are representative of what can be generated ‘on board’ a vehicle using an exhaust gas fuel reformer. By researching the effects of introducing such components using a periodic injection cycle the aim is to reduce the volume of ‘reformates’ required to assist in proficient diesel particulate filter regeneration. As a result, this study also aims to support future work in the development of exhaust gas fuel

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33

Kuyper, Johannes. "Experimental Investigation into the Influence of Piston Crevices on Engine-Out Hydrocarbon Emissions from a Diesel Dual Fuel Engine." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-184000.

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In today’s society, when the fuel prices are increasing and the climate changes are becoming more and more noticeable, alternative fuels for combustion engines are becoming an important topic for the manufacturers. Two interesting fuels in those perspectives are Biogas and Compressed Natural Gas, CNG. The main constituent of these two fuels is methane. Currently methane is mostly used in spark ignited engines but can also be used in diesel engines since it has a high resistance to knock. An engine concept where methane can be used as fuel in a diesel engine is the Diesel Dual Fuel concept, DDF

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34

Ellis, Mark Robert. "Effect of piston bowl geometry on combustion and emissions of a direct injected diesel engine." Thesis, Brunel University, 1999. http://bura.brunel.ac.uk/handle/2438/5438.

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The effect of piston bowl geometry on the performance and exhaust emissions from a modern, high speed direct-injection (HSDI) diesel engine was investigated. Four piston bowl geometry’s (shape) were designed, manufactured and tested in a pre-production HSDI diesel engine installed on an eddy-current dynamometer. A series of experimental tests were performed to determined the optimum injector configuration for each piston bowl shape, the best bowl shape for minimum drive-cycle simulated emissions, and the effect of in-cylinder swirl ratio at various engine operating conditions. Results from com

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35

Emslie, Lovell Donald. "The effect of turbo-charging and intercoolingon emissionsgeneration [i.e. intercooling on emissions generation] and durability of a diesel engine." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52520.

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Thesis (MScEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: To reduce exhaust gas emissions in diesel engines and for engine upgrade purposes the major parameters and equipment that should be looked at are boost pressure, intake charge temperature, combustion chamber design and fuel injection equipment. Boost pressure is governed by the turbo-charger; with high-efficiency variable geometry turbochargers, effective control is possible to increase airflow rate at all operating conditions of the engine. Efficient air-to-air inter-cooling results in the engine being filled with a

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36

O'Sullivan, Cornelius (Cornelius Patrick) 1974. "Investigation of the NOx and PM emissions from a diesel engine operating on nanoemulsified fuels." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9346.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.<br>Includes bibliographical references (p. 89-91).<br>Driven in part by concerns regarding global wanning, there is a clear trend towards increased usage of compression ignition vehicles running on diesel fuel. Use of diesel fuel has a downside, namely relatively high oxides of nitrogen (NOx) and particulate matter (PM) emissions. Emulsified fuel is a mixture of water and diesel fuel. Quantum Energy Technologies Corporation (QET) have developed nanoemulsified fuels that contain water clusters in the na

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37

Feralio, Tyler Samuel. "The Effect Of Biodiesel Blends On Particle Number Emissions From A Light Duty Diesel Engine." ScholarWorks @ UVM, 2015. http://scholarworks.uvm.edu/graddis/400.

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Numerous studies have shown that respirable particles contribute to adverse human health outcomes including discomfort in irritated airways, increased asthma attacks, irregular heartbeat, non-fatal heart attacks, and even death. Particle emissions from diesel vehicles are a major source of airborne particles in urban areas. In response to energy security and global climate regulations, the use of biodiesel as an alternative fuel for petrodiesel has significantly increased in recent years. Particle emissions from diesel engines are highly dependent on fuel composition and, as such, the increase

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Tamaldin, N. "Experimental investigation of emissions from a light duty diesel engine utilizing urea spray SCR system." Thesis, Coventry University, 2010. http://curve.coventry.ac.uk/open/items/6cd8a66e-246a-f0f5-6bdc-168e4cc3e3dc/1.

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Stringent pollutant regulations on diesel-powered vehicles have resulted in the development of new technologies to reduce emission of nitrogen oxides (NOx). The urea Selective Catalyst Reduction (SCR) system and Lean NOx Trap (LNT) have become the two promising solutions to this problem. Whilst the LNT results in a fuel penalty due to periodic regeneration, the SCR system with aqueous urea solution or ammonia gas reductants could provide a better solution with higher NOx reduction efficiency. This thesis describes an experimental investigation which has been designed for comparing the effect N

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39

Bernardes, Pedrozo Vinícius. "An experimental study of ethanol-diesel dual-fuel combustion for high efficiency and clean heavy-duty engines." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/15850.

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Higher atmospheric concentration of greenhouse gases (GHG) such as carbon dioxide and methane has contributed to an increase in Earth's mean surface air temperature and caused climate changes. This largely reflects the increase in global energy consumption, which is heavily dependent on oil, natural gas, and coal. If not controlled, the combustion of these fossil fuels can also produce high levels of nitrogen oxides (NOx) and soot emissions, which adversely affect the air quality. New and extremely challenging fuel efficiency and exhaust emissions regulations are driving the development and op

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40

Çebi, Emrah Cihan [Verfasser]. "Modeling and Control of Raw Emissions of a Diesel Engine Under Practical Conditions / Emrah Cihan Cebi." Aachen : Shaker, 2013. http://d-nb.info/105157496X/34.

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Liu, Dai. "Combustion and emissions of an automotive diesel engine using biodiesel fuels under steady and start conditions." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5797/.

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Biodiesels have been proved to reduce the smoke and THC emissions by many researchers. The demands of biodiesel are increasing all over the world. Various feedstocks of biodiesel have been used in different countries and regions. The blend ratio of biodiesel in petrol station is also varies. Therefore, more calibration works have been done for the car manufacturers. In first part this research, the combustion characteristics and emissions of using biodiesels from different feedstocks with different blend ratio was studied by experimental works. Statistical analysis indicated the correlation be

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42

Li, Yu. "A Numerical Investigation of Natural Gas-Diesel Dual Fuel Engine Combustion and Emissions Using CFD Model." Thesis, West Virginia University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10845305.

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<p> Natural gas (NG)-diesel dual fuel engines have been highlighted for their fuel flexibility and high thermal efficiency comparable to diesel engines. However, the addition of NG to compression ignition diesel engines was reported to elongate ignition delay and to increase the emissions of carbon monoxide (CO), unburned methane (CH<sub>4</sub>), and nitrogen dioxide (NO<sub>2</sub>). Past research on dual fuel engines has focused on the experimental research on the engine performance, combustion process, and exhaust emissions. The research on detailed mechanism dominating the impact of CH<su

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43

Abuhabaya, Abdullah. "Investigation of engine performance and exhaust gas emissions by using bio-diesel in compression ignition engine and optimisation of bio-diesel production from feedstock by using response surface methodology." Thesis, University of Huddersfield, 2012. http://eprints.hud.ac.uk/id/eprint/14064/.

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Bio-diesel, derived from the transesterification of vegetable oils or animal fats with simple alcohols, has attracted more and more attention recently. As a cleaner burning diesel alternative, bio-diesel claims to have many attractive features including: biodegradability, nontoxicity, renewability and low emission profiles. Free fatty acid (FFA) esterification and triglyceride (TG) transesterification with low alcohols molar ratio are the central reactions for the bio-diesel production. This study presents an experimental investigation into the effects of running biodiesel fuel and its blends

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44

Estepa, Ruiz Daniel. "Study of different fuel injection and air management strategies as a tool for emissions control in a compression ignition engine (Diesel engine)." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/113076.

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En la actualidad, la industria del transporte es la encargada de satisfacer las necesidades logísticas del mundo. Los combustibles fósiles continúan siendo la principal fuente de energía de esta industria, y el motor Diésel, una de las tecnologías principales en la transformación de la energía química de estos combustibles en energía mecánica a través del proceso de combustión. Asociado a este proceso de transformación de la energía, un conjunto de efectos indeseados como las emisiones contaminantes o los gases de efecto invernadero han hecho movilizar a la comunidad científica. Dicha comunida

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45

Salt, Thomas A. "Evaluation of the Benefits of Oxy-combustion on Emissions from a Compression Ignition Engine." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd2957.pdf.

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46

May, Ian Alexander. "An experimental investigation of lean-burn dual-fuel combustion in a heavy duty diesel engine." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/16398.

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Natural gas is currently an attractive substitute for diesel fuel in the Heavy-Duty (HD) diesel transportation sector. This is primarily attributed to its cost effectiveness, but also its ability to reduce the amount of CO2 and harmful engine pollutants emitted into the atmosphere. Lean-burn dual-fuel engines substitute natural gas in place of diesel but typically suffer from high engine-out methane (CH4) emissions, particularly under low load operation. In response to this issue, this work set out to improve upon the efficiency and emissions of a lean-burn dual-fuel combustion system in an HD

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47

Lindgren, Magnus. "Engine exhaust gas emissions from non-road mobile machinery : effects of transient load conditions /." Uppsala : Dept. of Biometry and Engineering, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a481.pdf.

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48

Powell, Jacob Joseph. "Engine performance and exhaust emissions from a diesel." 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2427.

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Non-road diesel engines are significant contributors to air pollution in the United States. Recent regulations put forth by EPA and other environmental agencies have laid out stringent guidelines for engine manufacturers and fuel producers. Recent increases in oil prices and foreign energy dependency has led to a push to produce renewable fuels, which will supplement current reserves. Biodiesel is a clean-burning renewable fuel, that can be blended with petroleum diesel. It is important to understand the effect on engine performance and exhaust emissions when using biodiesel from different fee

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49

Galligan, Derek T. "Effect of ignition and combustion on diesel engine emissions." 2001. http://www.library.wisc.edu/databases/connect/dissertations.html.

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50

Santos, Bjorn Sanchez. "Engine Performance and Exhaust Emissions of a Diesel Engine From Various Biodiesel Feedstock." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-12-7552.

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Increasing fuel prices, stricter government policies, and technological developments made it possible to seek for renewable alternatives, called biofuels, to petroleum fuel. Biodiesel, a biofuel that is produced from chemically mixing animal fat, vegetable oils, or recycled restaurant grease with alcohol and catalyst, is gaining popularity in recent years as a substitute for petroleum diesel. Ninety percent (90%) of U.S. biodiesel industry makes use of soybean oil as its feedstock. However, soybean oil alone cannot meet such a huge demand on biofuel production. Hence, it is important to identi

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