Results 251 to 260 of about 51,359 (292)
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Symposium (International) on Combustion, 1988
An experimental investigation was carried out to determine the minimum spark ignition energy of monodisperse tetraline aerosols in a laminar gas flow. Results, presented in terms of spark ignition frequency, and for droplet sizes between 6.7 μm and 40 μm, showed: a relatively weak dependence on spark duration, an optimum spark gap width between 3 and 4
Arun K. Singh +1 more
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An experimental investigation was carried out to determine the minimum spark ignition energy of monodisperse tetraline aerosols in a laminar gas flow. Results, presented in terms of spark ignition frequency, and for droplet sizes between 6.7 μm and 40 μm, showed: a relatively weak dependence on spark duration, an optimum spark gap width between 3 and 4
Arun K. Singh +1 more
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2001
This latest collaboration in the Library Programs that Inspire series explores library media center events that target the high school age audience. Detailing particular methods to inspire high school students to appreciate and use the library media center, this guide provides compelling evidence of the potential for young adult programming as an ...
Roger Leslie, Patricia Potter Wilson
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This latest collaboration in the Library Programs that Inspire series explores library media center events that target the high school age audience. Detailing particular methods to inspire high school students to appreciate and use the library media center, this guide provides compelling evidence of the potential for young adult programming as an ...
Roger Leslie, Patricia Potter Wilson
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SAE Technical Paper Series, 2003
<div class="htmlview paragraph">A new “Traveling Spark Ignition” (TSI) system which, aided by a Lorentz force, propels a large plasma into the chamber of internal combustion engines, has been developed and tested on a single cylinder 4-stroke engine run on natural gas. Engine test scenarios included: conventional spark plugs with high energy CDI (
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<div class="htmlview paragraph">A new “Traveling Spark Ignition” (TSI) system which, aided by a Lorentz force, propels a large plasma into the chamber of internal combustion engines, has been developed and tested on a single cylinder 4-stroke engine run on natural gas. Engine test scenarios included: conventional spark plugs with high energy CDI (
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1985
This chapter considers how the combustion process is initiated and constrained in spark ignition engines. The air/fuel mixture has to be close to stoichiometric (chemically correct) for satisfactory spark ignition and flame propagation. The equivalence ratio or mixture strength of the air/fuel mixture also affects pollutant emissions, as discussed in ...
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This chapter considers how the combustion process is initiated and constrained in spark ignition engines. The air/fuel mixture has to be close to stoichiometric (chemically correct) for satisfactory spark ignition and flame propagation. The equivalence ratio or mixture strength of the air/fuel mixture also affects pollutant emissions, as discussed in ...
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1990
Modern ignition systems may be conveniently divided into TWO types. These are: The first system, having contact breaker points, may be as shown opposite. To improve cold start performance this system may have included into it a The second system may use one of many methods of allowing transistors to switch-off the primary current (this being the ...
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Modern ignition systems may be conveniently divided into TWO types. These are: The first system, having contact breaker points, may be as shown opposite. To improve cold start performance this system may have included into it a The second system may use one of many methods of allowing transistors to switch-off the primary current (this being the ...
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Calorimetry of Ignition Sparks
SAE Technical Paper Series, 1988<div class="htmlview paragraph">The thermal energy transferred to noncombusting gases by a spark at pressures from 1 to 7 atmospheres was measured using a pressure-rise calorimeter. The energy transfer efficiency (from electrical to thermal energy) was determined for conventional coil ignition systems, a plasma jet ignitor, and an ultra-short ...
Richard E. Teets, Jeffrey A. Sell
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Spark Spectroscopy for Spark Ignition Engine Diagnostics
SAE Technical Paper Series, 1995<div class="htmlview paragraph">The light emissions from a spark discharge were observed by inserting a fibre optic cable through the centre electrode of a spark plug, to investigate the possibility of determining the fuel-air ratio in the spark gap at ignition with spectroscopy.</div> <div class="htmlview paragraph">The total ...
R. Mark Merer, James S. Wallace
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Minimum ignition energy for laser spark ignition
Proceedings of the Combustion Institute, 2005Abstract Combustion ignition by electrical sparks and nonresonant laser sparks is preceded by breakdown, electron heating, relaxation of internal plasma energy, shock wave generation and propagation, and subsonic flows. Measurements and model calculations of these processes (which occur over times of 10 −12 –10 −1 s) in laser sparks show that the ...
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Tomorrow's Spark-Ignition Engine
SAE Technical Paper Series, 1965<div class="htmlview paragraph">This paper deals with the commercial version of the spark-ignition engine. Methods are discussed whereby future engines may be increased in horsepower output and reduced in weight and size. Variable compression methods, charge stratification, fuel injection, and turbocharging are discussed as means of increasing ...
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