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Dissertations / Theses on the topic 'Toxic emissions of internal combustion engines'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Лямцев, Олександр Вікторович, Александр Викторович Лямцев, Oleksandr Viktorovych Liamtsev та Р. П. Штирхун. "Використання альтернативних видів моторного пального як чинник вирішення екологічних проблем". Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/11868.

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Транспорт, особливо автомобільний, є потужним джерелом забруднення довкілля, зокрема атмосфери. Він, на відміну від промислових підприємств, належить до рухомих (мобільних) джерел забруднення. Токсичними викидами двигунів внутрішнього згоряння автотранспорту є відпрацьовані й картерні гази, пари палива із карбюраторного та паливного баку. Проблема зменшення викидів транспортними засобами є надзвичайно актуальною. Необхідність покращення стану навколишнього середовища від забруднення відпрацьованими газами автотранспорту поставила питання розробки альтернативних видів двигунів внутрі

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2

Seward, Balaji B. "Small engine emissions testing laboratory development and emissions sampling system verification." Morgantown, W. Va. : [West Virginia University Libraries], 2010. http://hdl.handle.net/10450/11024.

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Thesis (M.S.)--West Virginia University, 2010.<br>Title from document title page. Document formatted into pages; contains xvi, 110 p. : ill. Includes abstract. Includes bibliographical references (p. 108-110).

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3

Lakkis, Sari. "New Gas Sensor for Exhaust Emissions of Internal Combustion Engines." Thesis, Versailles-St Quentin en Yvelines, 2014. http://www.theses.fr/2014VERS0064/document.

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L’analyse des gaz d’échappement des moteurs à combustion interne a été traditionnellement réalisée en laboratoires en utilisant des analyseurs de gaz en vrac avec des équipements coûteux. Afin de créer un système capable de réaliser le travail de ces analyseurs, un capteur pouvant détecter plusieurs gaz simultanément est indispensable pour en mesurer la concentration. En effet, utiliser un capteur pour chaque gaz est couteux et peut amener à des procédures complexes d’analyse en raison des différentes technologies utilisées. De plus, l’utilisation de multiples capteurs donne lieu à une perte d

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4

IEMMOLO, DANIELE. "Alternative fuels and combustion modes to lower pollutant emissions from conventional internal combustion engines." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2724575.

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5

Sogbesan, Oluwasujibomi. "Strategies for reducing hydrocarbon emissions in diesel low temperature combustion." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21569.

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Government legislation on particulate matter (PM) and oxides of nitrogen (NOX) emissions have become increasingly stringent over the past decades. Future projections have led to internal combustion (IC)engine developers exploring advanced combustion technologies which may replace or supplement current state of the art systems. Advanced combustion technologies such as Low Temperature Combustion (LTC) cover a broad series of mechanisms that seek to attain in-cylinder Equivalence ratio (f) - Temperature (T) combinations during combustion which lead to acceptable emissions of exhaust PM and NOX. T

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6

Raggini, Lorenzo <1994&gt. "Modelling, control and testing of internal combustion engines to minimize consumption and pollutant emissions." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amsdottorato.unibo.it/10195/1/MODELLING%2C%20CONTROL%20AND%20TESTING%20OF%20INTERNAL%20COMBUSTION%20ENGINES%20TO%20MINIMISE%20CONSUMPTION%20AND%20POLLUTANT%20EMISSIONS.pdf.

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The objective of the PhD thesis was to research technologies and strategies to reduce fuel consumption and pollutants emission produced by internal combustion engines. In order to meet this objective my activity was focused on the research of advanced controls based on cylinder pressure feedback. These types of control strategies were studied because they present promising results in terms of engine efficiency enhancement. In the PhD dissertation two study cases are presented. The first case is relative to a control strategy to be used at the test bench for the optimisation of the spark advan

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7

Angelis, Yerasimos. "Quantification of environmentally sensitive emissions by substitution of traditional internal combustion (IC) technology with hydrogen fuelled IC engines." Available from the University of Aberdeen Library and Historic Collections Digital Resources. Online version available for University member only until May, 20, 2014, 2007. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=26222.

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8

Massey, Jeffery A. "Indication of cylinder pressure rise rate by means of vibration and acoustic emissions of an internal combustion engine." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Massey_09007dcc804cc3c8.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2008.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 1, 2008) Includes bibliographical references (p. 127-128).

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9

Huang, Yiqun. "The effects of fuel volatility, structure, speed and load on HC emissions from piston wetting in direct injection spark ignition engines." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3035951.

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10

Calisesi, Federico. "The analysis of the injection of hydrogen-oxygen mixtures in gasoline-powered internal combustion engines." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15553/.

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The effects on combustion derived by the blending of hydrogen with traditional fuels adopted for internal combustion engines have been studied. Results derived by emission tests of a gasoline-fed vehicle equipped with a system for the production of hydrogen on-board have been analysed. The energy balance for the engine was evaluated. It demonstrated the increase of fuel consumptions to perform electrolysis process on-board the vehicle. Afterwards, numerical simulations based on a detailed kinetic model have been performed to calculate pollutant emissions produced by methane and iso-octane (whi

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11

Alger, Terrence Francis. "Factors in charge preparation and their effect on performance and emissions from a direct injection spark ignition engine." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3023542.

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12

Udell, Thomas Gregory. "Reducing emissions of older vehicles through fuel system conversion to natural gas." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/19896.

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13

Sari, Rafael Lago. "Avaliação da utilização de etanol com elevados teores de água em motores de combustão interna com ignição por centelha." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/158246.

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A utilização de combustíveis fósseis é percebida, cada vez mais, de forma negativa, visto seus elevados níveis de emissão de gases de efeito estufa. Por conta disso, busca-se a ampliação do uso de combustíveis de origem renovável de forma a diminuir o impacto ambiental. Dentre esses, o etanol se destaca pelas excelentes características físico-químicas. Ao se reduzir o nível de pureza (diluição em agua) durante o processo de destilação desse combustível, obtém-se um sensível decréscimo da energia dispendida na sua produção. Isso se deve ao crescimento exponencial do consumo energético para obte

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14

Cambridge, Shevonn Nathaniel. "The effect of compression ratio on emissions from an alcohol-fueled engine." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09122009-040220/.

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15

Astanei, Dragoş-George. "Improving the performances of the combustion engines by improving the ignition system." Thesis, Orléans, 2014. http://www.theses.fr/2014ORLE2073/document.

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Face aux normes actuelles et futures, de plus en plus drastiques, concernant les émissions de polluants, les constructeurs automobiles cherchent en permanence à améliorer l'efficacité des moteurs à allumage commandé. Une des solutions les plus efficaces et applicables pour diminuer la quantité de polluants émis dans les gaz d’échappement (HC, CO, NOx) et réduire la consommation de carburant, est d’utiliser un mélange très pauvre (richesse du mélange inférieure à 0,6). Toutefois, ce concept de fonctionnement est limité par les systèmes d'allumage classiques qui ne peuvent pas garantir un alluma

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16

Calverley, Dan. "Cumulative emissions reduction in the UK passenger car sector through near-term interventions in technology and use." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/cumulative-emissions-reduction-in-the-uk-passenger-car-sector-through-nearterm-interventions-in-technology-and-use(686e7c51-432b-4a0b-83f1-a1b127e1e5c3).html.

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Responsible for one in eight tonnes of national CO₂ emissions, the passenger car sector is pivotal to delivering on UK climate change commitments to avoiding warming of more than 2°C. This thesis provides a clear and quantitative framing of emissions reduction at the sectoral level, by disaggregating global cumulative emissions budgets and pathways associated with a range of probabilities of exceeding 2°C. The relatively low level of abatement currently planned for the UK car sector, it is argued, needs to be significantly increased for the following reasons: (i) a scientific basis in cumulati

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17

Thein, Kévin Jean Lucien. "Evaluation of combustion concepts and scavenging configurations in a 2-Stroke compression-ignition engine for future automotive powerplants." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/164044.

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[ES] El trabajo de investigación presentado en esta tesis es el resultado de varios años dedicados al desarrollo, la implementación y la optimización de dos tecnologías combinadas: un concepto de combustión innovador y una arquitectura de motor de nuevo diseño. Esta investigacion se ha realizado en el marco de una colaboración con Renault SA, como continuación de las actividades realizadas en el proyecto europeo POWERFUL (POWERtrain for FUture Light-duty vehicles) por un lado,y en el marco del proyecto europeo REWARD (Real World Advanced technologies foR Diesel engines), devenido como continua

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18

SILVA, Débora Verônica Soares da. "Análise das emissões atmosféricas e eficiência energética na geração de eletricidade por termogeração, utilizando motores do ciclo diesel." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/515.

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Submitted by Kilvya Braga (kilvyabraga@hotmail.com) on 2018-04-27T12:26:50Z No. of bitstreams: 1 DÉBORA VERÔNICA SOARES DA SILVA - DISSERTAÇÃO (PPGEM) 2016.pdf: 2745165 bytes, checksum: dc06b85aa4e599aca0f2669880e12954 (MD5)<br>Made available in DSpace on 2018-04-27T12:26:50Z (GMT). No. of bitstreams: 1 DÉBORA VERÔNICA SOARES DA SILVA - DISSERTAÇÃO (PPGEM) 2016.pdf: 2745165 bytes, checksum: dc06b85aa4e599aca0f2669880e12954 (MD5) Previous issue date: 2016-02-29<br>CNPq<br>A crise energética em 2001 evidenciou a necessidade de expansão dos investimentos no Setor Elétrico Brasileiro. Em fun

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19

Auñón, García Ángel. "Development and validation of a virtual engine model for simulating standard testing cycles." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/168906.

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[ES] Las nuevas regulaciones en materia de emisiones de efecto invernadero y calidad del aire han conducido la evolución tecnológica de los motores de combustión interna durante los últimos años. Las mejoras en el proceso de la combustión, la sobrealimentación, la gestión térmica, los sistemas de post tratamiento y técnicas como la recirculación de gases de escape, han permitido que los motores de combustión interna de hoy en día sean cada vez más limpios. La adopción en Europa del nuevo ciclo de homologación WLTP, que considera un ciclo de conducción más realista que su predecesor el NEDC, as

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20

Molaie, Sama. "Estimation Problems of Pollutant Emissions in Internal Combustion Engines." Doctoral thesis, 2021. http://hdl.handle.net/11589/226558.

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This research deals with the question of how particulate matter (PM) from vehicle exhaust can be measured using low-cost and low-weight sensor and with high resolution. For this purpose, a novel system based on inexpensive commercial optical scattering-based sensor, ejectors, compressor, and filters is presented. Atmospheric particulate matter poses a significant health hazard globally, which manifests itself in respiratory and cardiovascular disease and causes shortened life expectancy. As one source of pollution, diesel cars are equipped with a very efficient particulate matter filter to r

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21

Lujaji, Frank. "Effects of fuel blends containing Croton oil, Butanol and Diesel on the performance and emissions of Diesel engines." 2010. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000772.

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M. Tech. Mechanical Engineering.<br>Evaluates the effects of blends (vegetable oil-Butanol (BU) alcohol-diesel) on fuel properties, engine performance, combustion, and emission characteristics. Fuel blends investigated were croton oil (CRO), Diesel (D2), 20% CRO-80% D2, 15% CRO-5% BU-80% D2 and 10% CRO-10% BU-80% D2.

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22

Nguyen, VTP. "Study of predictive models for emissions in hydrogen assisted dual fuel internal combustion engine." Thesis, 2007. https://eprints.utas.edu.au/21034/1/whole_NguyenVietTienPhuong2007_thesis.pdf.

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A detailed understanding of the exhaust gas emissions can forecast the state of the engine performance and the other detrimental health effects it can have on the general population. There is no doubt that exhaust gas emissions generated by various internal combustion engines can provide environmental implications. With modem trends in alternative fuels and their mix with the conventional gasoline, is yet another effort to reduce exhaust gas emissions and adhere to strict emissions requirements in automobiles. While a good understanding of the quantitative and qualitative trends are available

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23

Ashford, Marcus Demetris Matthews Ronald D. "An on-board distillation system to reduce cold-start hydrocarbon emissions from gasoline internal combustion engines." 2004. http://wwwlib.umi.com/cr/utexas/fullcit?p3143365.

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24

Ashford, Marcus Demetris 1972. "An on-board distillation system to reduce cold-start hydrocarbon emissions from gasoline internal combustion engines." 2004. http://hdl.handle.net/2152/12746.

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25

Ibrahim, Amr Aly Hassan. "An investigation on the use of EGR in a natural gas SI engine." 2009. http://arrow.unisa.edu.au:8081/1959.8/75817.

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Internal combustion engine emissions are currently a major source of air pollution. The harmful impact of engine emissions can be reduced when engines are fuelled by alternatives to petrol and diesel such as natural gas. The use of lean burn technology in spark-ignition engines has been dominant; however, the lean burn technique can not economically satisfy the increasingly restricted future emission standards particularly for NOx emissions. In this thesis, the use of the stoichiometric air-fuel mixture with exhaust gas recirculation (EGR) technique in a spark ignition natural gas engine is in

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