Refrigerant conversion of Auto-Refrigerating Cascade (ARC) systems

被引：116

作者：

Missimer, DJ

机构：

[1] Polycold Systems International, San Rafael, CA 94903-2264

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 1997年 / 20卷 / 03期

关键词：

cryogenics; refrigerating system; cryorefrigerator; compression; refrigerant; non azeotropic mixture; cascade; performance; optimization;

D O I：

10.1016/S0140-7007(96)00076-X

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper describes converting Auto-Refrigerating Cascade (ARC) ultra-low temperature systems from a multicomponent zeotropic working fluid containing CFCs to a CFC-free mixture. The differences between azeotropes, mixtures and blends with minimal glides used in conventional refrigeration systems and the steep glide (wide span) zeotropes required for ARC system operation are compared. The design tools used include the Carnahan-Starling-DeSantis and the Peng-Robinson equations of state and relationships of components based upon Raoult's raw. Some comparisons of pre- and post-conversion operating data are presented. A brief history of ARC cycle cooling systems is included. (C) 1997 Elsevier Science Ltd and IIR.

引用

页码：201 / 207

页数：7