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Дисертації з теми "Heat engine combustion chamber"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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1

Savur, Mehmet Koray. "A numerical study of combined convective and radiative heat transfer in a rocket engine combustion chamber." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Dec%5FSavur.pdf.

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2

Goh, Sing Huat. "Numerical study of the effect of the fuel film on heat transfer in a rocket engine combustion chamber." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FGoh.pdf.

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Анотація:

Thesis (M.S. in Engineering Science (Mechanical Engineering))--Naval Postgraduate School, December 2003.<br>Thesis advisor(s): Ashok Gopinath, Christopher Brophy. Includes bibliographical references (p. 71-72). Also available online.

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3

Kianzad, Siamak. "Measurement of Thermal Insulation properties of TBC inside the Combustion chamber." Thesis, Luleå tekniska universitet, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61917.

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Анотація:

This master thesis project was performed in collaboration with Scania CV AB, Engine Materials group. The purpose with the project was to investigate different ceramic TBC (Thermal Barrier Coating) thermal insulation properties inside the combustion chamber. Experimental testing was performed with a Single-Cylinder engine with TBC deposited on selected components. A dummy-valve was developed and manufactured specifically for this test in order to enable a water cooling system and to ease the testing procedure. The dummy-valve consists of a headlock, socket, valve poppet and valve shaft. Additio

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4

Berger, Sandrine. "Implementation of a coupled computational chain to the combustion chamber's heat transfer." Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/16636/1/Berger_Sandrine.pdf.

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The design of aeronautical engines is subject to many constraints that cover performance gain as well as increasingly sensitive environmental issues. These often contradicting objectives are currently being answered through an increase in the local and global temperature in the hot stages of the engine. As a result, the solid parts encounter very high temperature levels and gradients that are critical for the engine lifespan. Combustion chamber walls in particular are subject to large thermal constraints. It is thus essential for designers to characterize accurately the local thermal state of

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5

Lewis, Andrew. "Investigation into the effect of the thermal management system of a diesel engine on the rate of heat transfer through the combustion chamber." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.665393.

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Modern diesel engines are being continuously developed in order to improve their specific output thus reducing the fuel consumption. This is in response to both increasingly stringent regulations and to the demands of the customer evolving. With this in mind a more detailed understanding of some of the fundamental processes within the engine are required. A prime example of one of these processes is heat transfer. In the region of 17-35% of fuel energy will pass to the coolant, therefore the rate of heat transfer has a considerable effect on the design and function of the engine. This thesis d

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6

Le, guen Simon. "Étude expérimentale et modélisation phénoménologique des transferts thermiques aux parois des chambres de combustion des moteurs à allumage commandé." Thesis, Ecole centrale de Nantes, 2020. http://www.theses.fr/2020ECDN0012.

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Du fait du durcissement des normes en matière d’émissions polluantes et de gaz à effet de serre, les constructeurs automobiles développent des groupes motopropulseurs toujours plus sophistiqués et mettent au point des stratégies de contrôle moteur avancées. Dans ce contexte, les outils de simulation interviennent à toutes les étapes du processus de développement d’un moteur. Il est donc nécessaire de posséder des modèles à la fois fiables et simples d’utilisation. Les transferts thermiques entre les gaz et les parois de la chambre de combustion influencent des postes clés tels que la consommat

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7

Weber, Fabian. "Optical Analysis of the Hydrogen Cooling Film in High Pressure Combustion Chambers." Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76872.

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For performance optimisation of modern liquid cryogenic bipropellant rocket combustion chambers, one component which plays an important role in reducing the wall side heat flux, is the behaviour of the cooling film. At the Institute of Space Propulsion of the German Aerospace Center (DLR) in Lampoldshausen, hot test runs have been performed using the experimental combustion chamber BKM, to investigate the wall side heat flux which is -- among other factors -- dependent on cooling film properties. To gain more insight into the film behaviour under real rocket-like conditions, optical diagnostic

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8

Matuška, Petr. "Spalovací komora Stirlingova motoru o výkonu do 3 kW." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230437.

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This thesis deals with the construction proposal of the combustion chamber of Stirling engine. The introduction briefly describes the history and practical application of Stirlinova engine today. The following section explains the differences between theoretical and real cycle and the principle of beta Stirling engine modifications. The next section is devoted to the calculation of fuel and air consumption and fuel compared to each other. The proposed design is based not only on the calculation of fuel and air, but also heat transfer between flue gas and preheated air. The last part is devoted

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9

Robinson, Kevin. "IC engine coolant heat transfer studies." Thesis, University of Bath, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275444.

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10

Ahmed, Mahbub. "Investigation on the flame dynamics of meso-combustors." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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11

Mears, Kevin S. "Water distillation using waste engine heat from an internal combustion engine." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36725.

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Анотація:

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.<br>Includes bibliographical references (leaf 36).<br>To meet the needs of forward deployed soldiers and disaster relief personnel, a mobile water distillation system was designed and tested. This system uses waste engine heat from the exhaust flow of an internal combustion engine to vaporize water for the purpose of removing impurities. The vapor is condensed back down to water in a finned condenser that experiences forced convection. The system pumps heat transfer oil through a 0.61 meter long, cross

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12

Yates, D. A. "Hydrocarbon sampling from the combustion chamber of a lean burn engine." Thesis, Coventry University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374271.

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13

Calvert, Ian. "Pre-chamber charge stratification of a spark ignited internal combustion engine." Thesis, University of Canterbury. Mechanical Engineering, 1994. http://hdl.handle.net/10092/6453.

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Анотація:

This thesis details and reviews the development of a Pre-Chamber Stratified Charge Combustion System developed on a Ricardo E6/Mk6 single cylinder, variable compression, spark ignition research engine in the Thermodynamics Laboratory of the Mechanical Engineering Department at the University of Canterbury. Operating a spark ignition engine on an overall lean charge has tile potential to simultaneously reduce exhaust emissions and maintain good thermal efficiency. However, problems associated with ignition of the lean mixture to increased exhaust emissions and reduced thermal efficiency. Strat

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14

Mawle, Craig D. "The effects of turbulence and combustion chamber geometry on combustion in a spark ignition engine." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/27938.

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An experimental program has been undertaken to investigate the effects of turbulence on combustion in a spark ignition engine and to examine the effects of a new combustion chamber design. The experiments were conducted in a rapid intake and compression machine using the compression stroke alone in order to eliminate the effects of intake stroke generated turbulence. The effects of turbulence scale and intensity on combustion was investigated using perforated plates to generate turbulence in the combustion chamber. The turbulence generated with three different perforated plate hole sizes was

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15

Haidar, Haissam Ali. "Combustion chamber deposit effects on hydrocarbon emissions from a spark-ignition engine." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43321.

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16

Van, der Westhuizen H. J. "Computational and experimental investigation of chamber design and combustion process interaction in a spark ignition engine." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53334.

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Thesis (MScEng)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: The automotive industry in South Africa is expanding as a result of pressure on the world economy that forces vehicle manufacturers to outsouree work to developing countries. In order to add value to automotive engine development, the capability to perform state-of-the-art engineering must be developed in this country. Threedimensional fluid flow simulation is one such area and is being developed in this study in order to enhance the ability to develop combustion systems. Another capability being developed at the Un

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17

Petersen, Ulf. "Jet mixing in DI diesel engine combustion chamber model under quiescent and swirling conditions." Thesis, University of Bath, 1991. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306381.

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18

Jager, Dennis John. "A study of mixing and combustion in a divided chamber turbocharged natural gas engine." Thesis, University of Bath, 1992. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304836.

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19

White, Colin Laurence. "Experimental and analytical studies based on a high swirl combustion chamber representing the DI diesel engine combustion system." Thesis, University of Bath, 1986. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370455.

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20

Luo, Xi. "Study of Periodical Flow Heat Transfer in an Internal Combustion Engine." Thesis, Wayne State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10637206.

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<p> In-cylinder heat transfer is one of the most critical physical behaviors which has a direct influence on engine out emission and thermal efficiency for IC engine. In-cylinder wall temperature has to be precisely controlled to achieve high efficiency and low emission. However, this cannot be done without knowing gas-to-wall heat flux. This study reports on the development of a technique suitable for engine in-cylinder surface temperature measurement, as the traditional method is “hard to reach.” A laser induced phosphorescence technique was used to study in-cylinder wall tempera

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21

Roberts, Janet Marie. "Heat release estimation and prediction of Wankel stratified-charge combustion engine." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/29854.

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Анотація:

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1985.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING<br>Bibliography: leaves 43-44.<br>by Janet Marie Roberts.<br>M.S.

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22

Maier, Andreas. "Geometric parameters influencing IC engine inlet valve flow and heat transfer." Thesis, University of Sunderland, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298001.

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23

Gustafsson, Annie. "Implementing a heat release feedback on a combustion engine using an FPGA." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-141327.

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Att förbättra motorprestandan är något både Scania och deras konkurrenter strävar efter. Ett sätt att göra detta vore att skapa en förbränningsåterkoppling. Förhoppningen är att en förbränningsåterkoppling kommer minska mängden utsläpp och slitaget på motorn. Under detta examensarbetet undersöks möjligheterna att skapa en förbränningsåterkoppling med net heat release, d.v.s. hur mycket energi som frigörs i cylindern på grund av förbränningen, som kontrollparameter. Att använda heat release för att analysera motorprestandan är inget nytt, att däremot använda och beräkna den i realtid är ett omr

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24

Williams, Timothy C. "Combustion, NOx formation and mixing processes in Helmholtz pulse combustors." Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/18459.

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This thesis presents a laser diagnostic investigation into the combustion, NOx formation and mixing processes occurring within the optically assessed combustion chamber of a methane-fired (10kW), fully premixed, self-aspirating, Helmholtz pulse combustor. The inlet geometry of the combustion chamber consisted of a step expansion and a bluff body obstacle formed by a stagnation plate. The focus of the investigation was the effects of the stream-wise position of the stagnation plate on the pulse combustion processes. A comprehensive parametric study of the performance of the pulse combustor is p

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25

Tippett, Esther Claire. "The effects of combustion chamber design on turbulence, cyclic variation and performance in an SI engine." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/28071.

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An experimental program of motored and fired tests has been undertaken on a single cylinder spark ignition engine to determine the influence of combustion chamber design on turbulence enhancement in the achievement of fast lean operation. Flow field measurements were taken using hot wire anemometry in the cylinder during motored operation. On line performance tests and in-cylinder pressure data were recorded for the operation of the engine by natural gas at lean and stoichiometric conditions over a range of speed and loads. Squish and squish jet action methods of turbulence enhancement were

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26

Cengiz, Kenan. "Development Of An Iterative Method For Liquid-propellant Combustion Chamber Instability Analysis." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612753/index.pdf.

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Controlling unsteady combustion induced gas flow fluctuations and the resultant motor vibrations is a very significant step in rocket motor design. It occurs when the unsteady heat release due to combustion happens to feed the acoustic oscillations of the closed duct forming a feed-back system. The resultant vibrations concerned may even lead to total failure of the rocket system unless analysed and tested thoroughly. This thesis aims developing a linear numerical analysis method for the growth rate of instabilities and possible mode shape of a liquid-propelled chamber geometry. In particular,

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27

Aghaali, Habib. "On-Engine Turbocharger Performance Considering Heat Transfer." Licentiate thesis, KTH, Maskinkonstruktion (Inst.), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93981.

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Heat transfer plays an important role in affecting an on-engine turbocharger performance. However, it is normally not taken into account for turbocharged engine simulations. Generally, an engine simulation based on one-dimensional gas dynamics uses turbocharger performance maps which are measured without quantifying and qualifying the heat transfer, regardless of the fact that they are measured on the hot-flow or cold-flow gas-stand. Since heat transfer situations vary for on-engine turbochargers, the maps have to be shifted and corrected in the 1-D engine simulation, which mass and efficiency

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28

Abbaszadehmosayebi, Gholamreza. "Diesel engine heat release analysis by using newly defined dimensionless parameters." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/9201.

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Diesel engine combustion has been studied during the last decades by researchers in terms of improving the performance of the engine. In order to improve the analysis of the diesel engine combustion, dimensionless parameters were used in this study. It was concluded that the newly introduced dimensionless parameters developed in this study facilitate understanding of diesel engine combustion process. A new method has been proposed to determine the values of the form factor (m) and efficiency factors (a) of the Wiebe equation. This is achieved by developing a modified form of Wiebe equation wit

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29

Sheldrake, Terence Henry. "Heat transfer measurements in and around the valves and ports of an internal combustion engine." Thesis, University of Sunderland, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389874.

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30

Masquelet, Matthieu M. "Simulations of a Sub-scale Liquid Rocket Engine: Transient Heat Transfer in a Real Gas Environment." Thesis, Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-11102006-082702/.

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31

Frank, Richard Milton. "A computer model for the heat losses in the exhaust manifold of an internal combustion engine." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/100066.

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Анотація:

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING<br>Bibliography: leaves 87-88.<br>by Richard Milton Frank.<br>M.S.

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32

Aye, Maung Maung [Verfasser]. "Spray Combustion of Single- and Multi-component Fuels under Engine-like Conditions in a High Pressure Chamber / Maung Maung Aye." Aachen : Shaker, 2015. http://d-nb.info/1070152005/34.

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33

Glenn, Lauren M. "Refurbished and 3D Modeled Thermal Vacuum Chamber." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1718.

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Spacecraft testing includes acoustics, vibrations, and thermal vacuum. Cal Poly’s Space Environments Lab is equipped with multiple vacuum chambers, but no thermal vacuum chamber. The purpose of this thesis is to incorporate an ATS Chiller system with the HVEC vacuum chamber so students are able to experiment with a thermal vacuum chamber. The ATS Chiller had leaky pipes that needed to be refurbished and a shroud was implemented to improve thermal capabilities of the system. The full system was able to reach temperatures as low as -38ºC and as high as 58ºC at a pressure of 10-6 Torr. The ATS Ch

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34

Busch, Stephen [Verfasser], and U. [Akademischer Betreuer] Spicher. "The Theory and Application of Optical Diagnostic Techniques in the Combustion Chamber of a Diesel Engine / Stephen Busch. Betreuer: U. Spicher." Karlsruhe : KIT-Bibliothek, 2013. http://d-nb.info/1035450984/34.

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35

Souza, Sandro Guimarães. "Um estudo sobre a evolução das câmaras de combustão dos motores do ciclo Otto à gasolina e sua aplicação ao etanol hidratado como combustível alternativo." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18135/tde-16112004-103714/.

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Apresenta o estado da arte das câmaras de combustão dos motores de combustão interna ciclo Otto à gasolina e a etanol, onde observa de forma qualitativa aspectos evolutivos e específicos ao uso do etanol como combustível alternativo. Propõe sugestões para trabalhos futuros, visando a otimização de uma câmara mais apropriada ao uso deste importante combustível renovável.<br>It presents the state of the art of combustion chambers of gasoline and ethanol Otto cycle internal combustion engines, where it observes qualitatively evolutive and specific aspects to the use of the ethanol as an alternati

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36

Milkov, Nikolay. "Waste heat recovery from the exhaust gases of a diesel engine by means of Rankine cycle." Thesis, Paris, CNAM, 2017. http://www.theses.fr/2017CNAM1149/document.

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Cette étude est motivée par la protection de l'environnement et la réduction des émissions de CO2 émis par les moteurs à combustion interne. L'objectif de la thèse est d'étudier les possibilités de la réduction de la consommation de carburant d'un moteur diesel d’automobile grâce à la récupération de la chaleur des gaz d'échappement basée sur un cycle de Rankine. Afin de déterminer l'énergie perdue, le moteur a été testé sur un banc d’essais et les paramètres des gaz d’échappement ont été mesurés. Un modèle de simulation du moteur a également été développé et validé grâce aux résultats expérim

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37

DJOKO-SURONO-WIDODO, JOHANNES. "Etude de la combustion d'un moteur a allumage commande par controle de la turbulence externe." Paris 6, 1986. http://www.theses.fr/1986PA066631.

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Анотація:

Etude de la combustion en melange pauvre avec rotation de la charge. Presentation des solutions pour limiter les effets defavorables: conduit d'admission helicoidal, canal d'admission secondaire, deflecteur mobile pilote, culasse multi-admissions (permeabilite de la culasse). L'augmentation de la turbulence donne des resultats positifs pour les points de fonctionnement a faible charge

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38

Salvatore, Pisasale. "Heat flux measurement device : Designing an experimental system for determining the effectiveness of thermal barrier coating inside a combustion chamber." Thesis, KTH, Maskinkonstruktion (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-183999.

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This Masters Thesis has been carried out in collaboration with SCANIA CV AB and it concerns the development of an experimental measurement set up to analyze the heat losses in a Diesel engine. This measurement equipment will be used to test a type of coating, called TBC (Thermal Barrier Coating). Scania has been studying this kind of coating for some years and it has been noticed as a way to improve the efficiency of the engine. It is then important for the company to understand the behavior of this coating considering all the combustion’s features of an internal combustion engine. The target

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39

Escalona, Cornejo Johan Enrique. "Modelling of Heat Losses through Coated Cylinder Walls and their Impact on Engine Performance." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/165244.

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[ES] Actualmente, los vehículos propulsados por motores de combustión interna alternativos (MCIA) constituyen uno de los mayores agentes contaminantes para el medio ambiente. En este sentido, ha existido una importante cooperación internacional para promulgar leyes que regulen las emisiones contaminantes. De manera que los fabricantes de coches han impulsado el desarrollo de tecnologías más limpias y amigables con el medio ambiente. Ante esta situación, ha surgido recientemente la electrificación, como uno de los proyectos más ambiciosos de la industria automotriz para los próximos años. Sin e

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40

Petersen, John H. "Combustion heat release rate comparison of algae hydroprocessed renewable diesel to F-76 in a two-stroke diesel engine." Monterey, California: Naval Postgraduate School, 2013. http://hdl.handle.net/10945/34720.

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Approved for public release; distribution is unlimited<br>This thesis compared the combustion performance of algae-based hydroprocessed renewable Diesel fuel (HRD) and HRD/F-76 blends, to that of conventional Naval Diesel fuel, F-76. The tests were conducted using a two-stroke, direct injected Detroit 3-53 Diesel engine. The cetane number (CN) of the HRD used was 78 while the CN of the F-76 used was 46. The start of injection (SOI) was measured with a strain gauge mounted on the mechanical fuel injector rocker arm. SOI was found to advance as load increased and retard as speed increased; howev

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41

Dombrovsky, Artem. "Synthesis of the 1D modelling of turbochargers and its effects on engine performance prediction." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/82307.

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Low fuel consumption is one of the main requirement for current internal combustion engines for passenger car applications. One of the most used strategies to achieve this goal is to use downsized engines (smaller engines while maintaining power) what implies the usage of turbochargers. The coupling between both machines (the turbocharger and the internal combustion engines) presents many difficulties due to the different nature between turbomachines and reciprocating machines. These difficulties make the optimal design of the turbocharged internal combustion engines a complicated issue. In th

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Cartaxo, Justino Carvalho. "Heat release analysis for second generation biodiesels." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16984.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Second generation biodiesel fuels extracted from sources such as beef tallow and castor bean oil have gone through an increase in production, as they are being gradually added to soybean biodiesel which constitutes the primary biofuel in the country. These alternative materials have potential do increase the fuelâs oxidation stability and, specifically in the case of beef tallow, reduce the cost of producing biodiesel. However, these sources also contribute to making the properties of the biodiesel/diesel blend more distant from th

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Lesák, Tomáš. "Hlava zkušebního jednoválcového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232147.

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This thesis is dealing with structure design solutions of combustion chambers and intake ports in petrol combustion engines, including their basic properties. Part of the thesis is focused on experimental measurements of a real intake port of Mikron III engine. Also it describes creation of 3D model for CFD flow simulation, optimization proposals for improved engine induction and results evaluation.

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Pagano, Vincenzo. "Analysis of a stratified pre-chamber spark ignition system under lean mixture conditions." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/152486.

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[EN] In the current work, the characterization of the combustion process inside a stratified pre-chamber spark ignition (PCSI) system is performed. An extensive bibliographical review about the pre-chamber systems developed from the second half of the 20th century until modern times is presented. The review shows that the latest generation systems have the potential to accomplish the emissions limits while providing high performance and low fuel consumption. Nevertheless, many efforts of the scientific community are still needed to allow the large-scale application of the technology. Indeed, b

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Abdel-Fattah, Yahia. "The mechanics of valve cooling in internal-combustion engines : investigation into the effect of VSI on the heat flow from valves towards the cooling jacket." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4333.

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Controlling the temperature of the exhaust valves is paramount for proper functioning of engines and for the long lifespan of valve train components. The majority of the heat outflow from the valve takes place along the valve-seat-cylinder head-coolant thermal path which is significantly influenced by the thermal contact resistance (TCR) present at the valve/seat and seat/head interfaces. A test rig facility and experimental procedure were successfully developed to assess the effect of the valve/seat and seat/head interfaces on heat outflow from the valve, in particular the effects of the valv

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Морозова, Ірина Володимирівна. "Удосконалення процесів в камері згоряння теплових двигунів шляхом електрофізичного впливу на вуглеводневе паливо". Thesis, 2016. http://er.nau.edu.ua/handle/NAU/23228.

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Дисертаційна робота присвячена вирішенню задач підвищення ефективності теплових двигунів і енергетичних установок шляхом застосування методу електрофізичного впливу на вуглеводневе паливо, який ґрунтується на резонансному поглинанні енергії молекулярною системою вуглеводневої рідини. У теоретичній частині роботи вперше розглядається задача дослідження ядерного магнітного резонансу для впливу на електрофізичні показники вуглеводневих палив, що характеризують процес горіння палива в камері згоряння та експлуатаційні властивості теплових двигунів. Експериментальна частина роботи присвячена досл

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Hima, Bindu V. "Experimental Investigations Of Aerothermodynamics Of A Scramjet Engine Configuration." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/1120.

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The recent resurgence in hypersonics is centered around the development of SCRAMJET engine technology to power future hypersonic vehicles. Successful flight trials by Australian and American scientists have created interest in the scramjet engine research across the globe. To develop scramjet engine, it is important to study heat transfer effects on the engine performance and aerodynamic forces acting on the body. Hence, the main aim of present investigation is the design of scramjet engine configuration and measurement of aerodynamic forces acting on the model and heat transfer rates along

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Hima, Bindu V. "Experimental Investigations Of Aerothermodynamics Of A Scramjet Engine Configuration." Thesis, 2009. http://hdl.handle.net/2005/1120.

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The recent resurgence in hypersonics is centered around the development of SCRAMJET engine technology to power future hypersonic vehicles. Successful flight trials by Australian and American scientists have created interest in the scramjet engine research across the globe. To develop scramjet engine, it is important to study heat transfer effects on the engine performance and aerodynamic forces acting on the body. Hence, the main aim of present investigation is the design of scramjet engine configuration and measurement of aerodynamic forces acting on the model and heat transfer rates along t

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Wickman, David D. "HSDI diesel engine combustion chamber geometry optimization /." 2003. http://www.library.wisc.edu/databases/connect/dissertations.html.

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Wang, Pin-Han, and 王品翰. "Optimizing Combustion Chamber Design of a Motorcycle Engine." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/29638236126819012986.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>105<br>The in-cylinder flows in the axial planes of a motored two-vavle, single-cylinder, four-stroke engine during the intake and compression strokes at an engine speed of 6000 RPM and throttle opening of 100% were diagnosed by using computational methods. Moderate and intense tumble motions were generated by changing the combustion chamber geometric design. The computations were carried out by the computational fluid dynamics (CFD) software CONVERGE. The ensemble averaged conservation equations for mass, momentum, and energy in transient state conditions with the k

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