On the Coefficient of Heat Transfer between Gases and Cylinder Walls of the Spark-Ignition Engine

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概要

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• This investigation is concerned with the rates of heat transfer from the working gases to the combustion chamber walls of the internal combustion engines. The test engine used is a four stroke spark-ignition engine with a water cooled single cylinder, bore×stroke being 114.3×140 mm. On the basis of author's experimental results, it was ascertained that the coefficients of heat transfer in this engine agreed well with those which were calculated by Eichelberg's formula [numerical formula] in the expansion stroke, but did not so well in the compression stroke. Law of similarity has been rarely applied to the problems of periodic heat transfer in the internal combustion engines, but recently Karl Elser developed this research. In the present report, improving Elser's method, the relation between the dimensionless groups was found as follows, [numerical formula] where Δs : entropy change C_p : specific heat under constant pressure change θ : crank angle

• 一般社団法人日本機械学会の論文

著者

• Oguri Tatsu

  Faculty Of Engineering Yokohama National University

• Oguri T.

  Faculty of Engineering, Osaka City University

関連論文

• On the Coefficient of Heat Transfer between Gases and Cylinder Walls of the Spark-Ignition Engine
• The Static Operation Mass Spectrometer
• Hydrostatic Pressure Effects on Self-Trapped Exciton Luminescence in KI
• Theory of Heat Transfer in the Working Gases of Internal Combustion Engines

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