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混合物有相变时的熵差计算
引用本文:邵件,冯仰浦,沈永年,张朝涵. 混合物有相变时的熵差计算[J]. 浙江大学学报(工学版), 1988, 0(4)
作者姓名:邵件  冯仰浦  沈永年  张朝涵
摘    要:
文章介绍利用状态方程对多组分物系有相变过程时熵差的计算方法。用GDSRK方程编制了含非烃的链烷烃天然气膨胀制冷有相变过程熵差的计算程序。在计算有相变的膨胀制冷过程的等熵效率时应考虑相变的影响。计算表明,结果更可靠更精确,并且考虑相变影响时的等熵效率略高于不考虑相变时的效率。

关 键 词:熵差  相变计算  混合物  多组分轻烃

Calculation of Entropy Difference in Phase-Transition Process of Multicomponent Mixture
Shao Jian Feng Yangpu Shen Yongniag Zhang Chaohan. Calculation of Entropy Difference in Phase-Transition Process of Multicomponent Mixture[J]. Journal of Zhejiang University(Engineering Science), 1988, 0(4)
Authors:Shao Jian Feng Yangpu Shen Yongniag Zhang Chaohan
Affiliation:Shao Jian Feng Yangpu Shen Yongniag Zhang Chaohan
Abstract:
This paper deals with the GDSRK rretfccd of the calculation of the entropy difference in the phasetransition process of multicompor;ent mixture.The concerned program is made for the expansion refrigeration of natural gas composed of paraffins and nonhydrocarbon components.When the isentropic efficiency of the expansion is calculated,the effect of the phase-transition should be considered.It is shown by computation that results obtained are more reliable and accurate,and that the isentropic efficiency of the expansion process calculated with consideration of phaae-transition is a little higher than that calculated without the consideration of phase-transition.
Keywords:Entropy dipperence Phase-transit! on calcination Mixture Mutticompanent Parappins
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