A method for estimating the composition of the mixture to be charged to get the desired composition in circulation in a single stage JT refrigerator operating with mixtures

被引：50

作者：

Narasimhan, N. Lakshmi ^{[1
]}

Venkatarathnam, G. ^{[1
]}

机构：

[1] Indian Inst Technol, Refrigerat & Airconditioning Lab, Madras 600036, Tamil Nadu, India

来源：

CRYOGENICS | 2010年 / 50卷 / 02期

关键词：

Joule-Thomson refrigerators; Non-azeotropic mixture; Refrigerant charge; Concentration; Composition variation; LIQUID-NITROGEN; RAIN RATE; FLOW; 2-PHASE;

D O I：

10.1016/j.cryogenics.2009.12.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

It has been shown earlier in literature that the composition of the mixture in circulation at steady state is different from that charged into the system in Joule-Thomson refrigerators operating with mixtures. There are no methods in literature that help us charge a particular composition into the system in order to get the desired composition in circulation at steady state. Experiments were performed with 30 different charge compositions, two different heat exchangers, and two different heat loads to understand the relationship between the composition in circulation and that charged. Based on these experiments, a method is proposed for estimating the charge composition required to get the desired composition in circulation. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：93 / 101

页数：9

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