317 Study on Ignition and Combustion of a Fuel Spray in Low Oxygen Mole Fraction Condition

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  • 317 低酸素濃度における燃料噴霧の着火と燃焼に関する研究(OS-2 液滴の着火・燃焼)

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In order to clarify the effects of injection conditions and oxygen mole fraction on PCCI combustion, an experimental study was conducted by using a constant volume vessl. Time histories of pressure and heat release rate were obtained at various injection condition and ambient oxygen mole fraction in n-heptane sprays. The results show that increase in injectioan pressure prolongs combustion duration at a fixed injection quantity. On the other hand, at approximately constant ijection duration, higher injection pressure gives shorter combustion duration.

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