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陈大燮教授曾提出过一个新型的循环[2],并指出为了实现这个循环应该使用一种新的工质——x工质。本文具体地列举在了蒸汽循环中x工质所希望的一些性质。用热相似理论对氨进行了详细的计算,计算时用水作为典型。考虑到水和氨在热力性质上的差异,提出了修正熵的ζ曲线和修正焓的η曲线。最后,将计算结果与列举的性质作比较,得出结论:从热力学观点来看,氨是可以用作为x工质的。
Professor Chen Dabo proposed a new cycle [2], and pointed out that to achieve this cycle should use a new working fluid - x working fluid. This article specifically lists some of the desirable properties of x working fluids in a steam cycle. Ammonia was calculated in detail using the thermal similarity theory, using water as a model. Taking into account the differences in thermal properties of water and ammonia, a η curve of the ζ curve and the corrected enthalpy of the modified entropy is proposed. Finally, the results of the calculation are compared with those of the enumeration, and the conclusion is drawn that ammonia can be used as the x working substance from the viewpoint of thermodynamics.