Experimental verification of the variable effect absorption refrigeration cycle

被引：27
作者：
Xu, Z. Y. [1 ]
Wang, R. Z. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Key Lab Power Machinery & Engn MOE, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China
来源：
ENERGY | 2014年 / 77卷
关键词：
Absorption chiller; Variable effect; Solar cooling; LiBr-water; COOLING SYSTEMS; OPTIONS;
D O I：
10.1016/j.energy.2014.09.044
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A variable effect absorption refrigeration cycle is proposed which can obtain a rising COP (Coefficient of Performance) versus the rising generation temperature. This novel cycle could be applied for solar absorption cooling efficiently. In this paper, a 50 kw variable effect (also named as 1.n effect) absorption chiller using LiBr-water as working fluid was designed. Its rated condition is generation temperature of 125 degrees C, condensation temperature of 40 degrees C, absorption temperature of 35 degrees C and evaporation temperature of 5 degrees C. The variable effect absorption chiller was then manufactured and tested. Data from the experiment showed that the chiller can get a rising COP from 0.69 to 1.08 under generation temperature from 95 degrees C to 120 degrees C as it was expected. The average error between theoretical COP and experimental COP was 7.3%. Feasibility of the variable effect absorption chiller and the effectiveness of the design have been verified. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：703 / 709
页数：7
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