Experimental studies on HFC based two-stage half effect vapour absorption cooling system

被引：32
作者：
Arivazhagan, S.
Saravanan, R.
Renganarayanan, S.
机构：
[1] Anna Univ, Inst Energy Studies, Dept Mech Engn, Madras 600025, Tamil Nadu, India
[2] St Josephs Coll Engn, Dept Mech Engn, Madras 600119, Tamil Nadu, India
来源：
APPLIED THERMAL ENGINEERING | 2006年 / 26卷 / 14-15期
关键词：
two-stage half effect cycle; degassing range; circulation ratio; coefficient of performance; HFC based working fluids;
D O I：
10.1016/j.applthermaleng.2005.12.014
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An experimental investigation on the performance of a two-stage half effect vapour absorption cooling system has been carried out and presented. The prototype is designed for I kW cooling capacity using HFC based working fluids (R134a as refrigerant and DMAC as absorbent). The performance of the system in terms of degassing range, coefficient of performance and second law efficiency has been obtained. The system is capable of producing evaporating temperature as low as -7 degrees C with generator temperatures ranging from 55 to 75 degrees C, The degassing range is 40% more in high absorber than in low absorber as the high absorber is operated at optimum intermediate pressure. The optimum generator temperature is found to be in the range of 65-70 degrees C at which the coefficient of performance is 0.36. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1455 / 1462
页数：8
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