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本文简要说明了(火用)分析在燃气动力装置中应用的优越性,对具体的双转子燃气轮机——斯贝M K202航空舰改机作了变工况的(火用)分析计算。部件的(火用)效率,标志着部件的热力完善程度。所以,从计算结果数据能很直观地表明装置中损失较大的部件。排气(火用)损失和燃烧室的(火用)损失占了整个机组(火用)损失的很大成分,是燃气轮机热损失的主要环节,这和以往的分析结果相吻合。整个机组的热效率和(火用)效率只相差一个比例常数。
This paper briefly illustrates the advantages of exergy analysis in the application of gas-powered devices. The exergy analysis and calculation of the dual twin-rotor gas turbine, Spokane M K202, is performed. The exergy efficiency of a part marks the degree of thermal perfection of the part. Therefore, the data from the calculation results can be very intuitive to indicate the loss of larger components in the device. The exergy loss and the exergy loss of the combustion chamber account for a large part of the exergy loss of the whole unit, which is the main part of the heat loss of the gas turbine, which agrees with the previous analysis results. The entire unit thermal efficiency and (exergy) efficiency is only a difference between a constant.