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An Experimental and Mathematical Study on the Effects of Ignition Energy and System on the Flame Kernel Development  

Song, Jeonghoon (Department of Mechanical Engineering, Inje University)
Sunwoo, Myoungho (Department of Automotive Engineering Hanyang University)
Publication Information
Journal of Mechanical Science and Technology / v.16, no.6, 2002 , pp. 829-838 More about this Journal
Abstract
A constant volume combustion chamber is used to investigate the flame kernel development of gasoline air mixtures under various ignition systems, ignition energies and spark plugs. Three kinds of ignition systems are designed and assembled, and the ignition energy is controlled by the variation of the dwell time. Several kinds of spark plugs are also tested. The velocity of flame propagation is measured by a laser deflection method, and the combustion pressure is analyzed by the heat release rate and the mass fraction burnt. The results represent that as the ignition energy is increased by enlarging either dwell time or spark plug gap, the heat release rate and the mass fraction burnt are increased. The electrodes materials and shapes influence the flame kernel development by changing he transfer efficiency of electrical energy to chemical energy. The diameter of electrodes also influences the heat release rate and the burnt mass fraction.
Keywords
Heat Release Rate; Burnt Mass Fraction; Ignition System; Spark Plug;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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