Experimental study on an absorption refrigeration system at low temperatures

被引：29

作者：

He, Yijian ^{[1
]}

Chen, Guangming ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Refrigerat & Cryogen, Hangzhou 310027, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2007年 / 46卷 / 03期

基金：

中国国家自然科学基金;

关键词：

heat-driven refrigeration cycle; absorption refrigeration cycle; auto-cascade refrigeration cycle; deep freezing; experiment;

D O I：

10.1016/j.ijthermalsci.2006.06.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The heat-driven auto-cascade absorption refrigeration cycle can be used at low temperatures, and a novel auto-cascade absorption refrigeration system is proposed to gain better performances with a refrigerating temperature as low as -50 degrees C. The new system uses a mixture of R23 + R32 + R134a/DMF as its working pair and its characteristic study is carried out under different operational conditions. It has successfully obtained a refrigerating temperature of -47.2 degrees C under the generating temperature of 163 degrees C. This refrigerating temperature is far lower than that of a traditional absorption refrigeration system with the same working pair, and it is also lower than that of an auto-cascade absorption refrigeration system using R32 + R134a/DMF as its working pair. From the experimental results, it is clearly seen that this new system shows.a rapider lowering rate of refrigerating temperature than that of an auto-cascade absorption refrigeration system using R23 + R134a/DMF as its working pair. The results of experimental analyses imply that this new absorption refrigeration system can be used in the deep-freezing as low as -50 degrees C by utilizing low-potential thermal power. Its potential of industrial application might be greater than that of an auto-cascade absorption refrigeration system using R23 + R134a/DMF as its working pair in the future. (c) 2006 Elsevier Masson SAS. All rights reserved.

引用

页码：294 / 299

页数：6

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