モータリングによる圧縮行程のポリトロープ指数について

概要

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In order to obtain the fundamental data on thereception and rejection of heat for the workingfluid in the compression stroke that influencesthe starting characteristics of piston engine. anexperimental study was put into practice by mo-toring method.The above mentioned reception and rejection ofheat are summarized with the change process ofpolytropic index. and the results are investigatedthermodynamically. and under this experimentalstudy the conclsions are as follows;(ll Over the whole compression stroke from BDCto TDC, the polytropic index is increase gradu- ally as stroke proceeds from BDC to TDC ex-cept the sections of constant-volume change,namely both ends in compression stroke.(2) As infuence factor for the polytropic index,the rotational speed of engine is relativelymuch greater than the cylinder temparaturecondition.
福島工業高等専門学校の論文