Solar driven steam jet ejector chiller

被引：39
作者：
Pollerberg, Clemens [1 ]
Ali, Ahmed Hamza H. [2 ]
Doetsch, Christian [1 ]
机构：
[1] Fraunhofer Inst Environm Safety & Energy Technol, D-46047 Oberhausen, Germany
[2] Assiut Univ, Fac Engn, Dept Mech Engn, Assiut 71516, Egypt
来源：
APPLIED THERMAL ENGINEERING | 2009年 / 29卷 / 5-6期
关键词：
Solar energy; Solar cooling; Steam jet ejector chiller; Parabolic trough collector; Vacuum collector; Cold water generation; COOLING SYSTEM; HEAT; MACHINE; R134A;
D O I：
10.1016/j.applthermaleng.2008.06.017
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents a solar driven process to generate cold water for air-conditioning by parabolic trough collectors and a steam jet ejector chiller. The only working fluid in the system is water, which is used as refrigerant and working fluid. The operational behaviour of such a system has been investigated by a small test rig. The investigation shows that the cooling water temperature as well as the cold water temperature has a strong influence on the coefficient of performance of a steam jet ejector chiller. The coefficient of performance reaches high values in part load and at good re-cooling conditions, so that the mean efficiency is clearly higher than the nominal efficiency of the system. A first calculation of profitability leads to specific cold cost of 0.62 (sic)/kWh in Germany and 0.15 (sic)/kWh in Egypt. (C) 2008 Elsevier Ltd. All rights reserved.
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收藏
页码：1245 / 1252
页数：8
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