Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 183 for “"spark ignition"”.
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Knock damage in spark-ignition engines
… the damage caused by knocking combustion in spark-ignition engines. A literature review indicated that, in general, research into knock has focused on the causes and avoidance of knock, rather than on the damage resulting from knock. The few published works concerning the effects of knock …
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The octane requirement of spark ignition engines
The thesis covers the fundamentals of refining and fuel technology, engine technology as regards parameters which influence knock and the results of engine tests. Definitions of octane number and the interpretation of the system developed to establish these numbers using the CFR engine are given. …
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Particulate matter formation in spark-ignition engines
… of the mechanisms by which PM is formed in spark ignition (SI) internal combustion engines. A study was undertaken in order to understand the effects of dilution on measured PM, to examine and model the effect of steady state engine operating conditions on engine-out PM, and to characterize …
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Effects of Turbulence on Spark-Ignition Engine Combustion
Made available in DSpace on 2014-12-13T19:55:20Z (GMT). No. of bitstreams: 1 7524348.pdf: 10540246 bytes, checksum: dddd6e4708126a30fb8de703e90a1389 (MD5) Previous issue date: 1975
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An improved friction model for spark ignition engines
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.
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Measurement of operating temperature in spark ignition engine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1959.
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Crevice volume effect on spark ignition engine efficiency
A set of experiments and a simulation study are completed to quantify the effect of the piston crevice on engine efficiency. The simulation study breaks down the loss mechanisms on brake efficiency at different displacement volumes (300 - 500 cc) and compression ratios (8-20). Experiments focus on …
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Simulation of turbulent flames relevant to spark-ignition engines
… is used to simulate flames relevant to spark-ignition IC engines. A central quantity in the current modelling approach is the scalar dissipation rate, which represents coupling between reaction and diffusion, as well as the flame front dynamics. In the first part of this thesis, the …
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Liquid fuel hydrocarbon emissions mechanisms in spark-ignition engines
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
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Carburetion system for biomass gas fueling of spark ignition engines
Call number: LD2668 .T4 1984 G666
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Investigation to direct ethanol injection in spark ignition gasoline engines
… reduction. Engine performance at original engine spark timing setting (15 CAD BTDC), knock margin and lean conditions was carried out to assess EDI+GPI’s effectiveness. The impacts of EDI+GPI on engine control parameters, such as start of injection (SOI) timing and spark timing, were also …
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A computational and experimental study of spark ignition engine combustion
This work focuses on aspects of combustion in a spark ignition engine. A pent-roof research engine was used to generate an experimental data set which was combined with a preexisting data set from a disc-chamber research engine. The combined dataset was used to refine a thermodynamic spark ignition …
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Measurement and modelling of combustion in a spark ignition engine
… cycle by cycle variations in combustion within a spark ignition engine, the best measured engine parameter to use for its characterization, and the effects that: ignition timing, equivalence ratio, fuel type, throttle position and knock, have upon it. A Ricardo E6 single cylinder variable …
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An estimation of the performance of spark ignition methanol engines
… the rated performance of a methanol-fuelled, spark-ignition engine given only the bore, stroke, number of cylinders and maximum rated engine speed. The prediction was based on an estimate of the indicated efficiency, the volumetric efficiency and the frictional losses of a methanol engine, …
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Investigation of oil consumption mechanisms in a spark-ignition engine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Impact analysis of piston slap in a spark ignition engine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Nitric oxide formation and thermodynamic modeling in spark ignition engines
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
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Liquid fuel transport into the cylinder in spark ignition engines
… hydrocarbon (HC) emissions from automotive spark ignition engines particularly during the start-up and subsequent warm up period. As fuel does not readily vaporize under cold engine conditions, significant quantities enter the cylinder in liquid form, where they would be stored in various …
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THE EFFECTS OP METHAHE/KEROSENE MIXTURES AS SPARK IGNITION ENGINE FUELS
… on the performance and the exhaust emissions of spark ignition engines have been investigated experimentally and theoretically. A series of experimental investigations have been carried out on three different single cylinder spark ignition engines and the results are presented and discussed. …
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