期刊
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
卷 28, 期 7, 页码 1073-1083出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrefrig.2005.03.001
关键词
design; adsorption system; water; silica gel; performance
A novel silica gel-water adsorption chiller is designed and its performance is predicted in this work. This adsorption chiller includes three vacuum chambers: two adsorption/desorption (or evaporation/condensation) vacuum chambers and one heat pipe working vacuum chamber as the evaporator. One adsorber, one condenser and one evaporator are housed in the same chamber to constitute an adsorption/desorption unit. The evaporators of two adsorption/desorption units are combined together by a heat-pipe heat exchanger to make continuous refrigerating capacity. In this chiller, a vacuum valve is installed between the two adsorption/desorption vacuum chambers to increase its performance especially when the chiller is driven by a low temperature heat source. The operating reliability of the chiller rises greatly because of using fewer valves. Furthermore, the performance of the chiller is predicted. The simulated results show that the refrigerating capacity is more than 10 kW under a typical working condition with hot water temperature of 85 degrees C, the cooling water temperature of 31 degrees C and the chilled water inlet temperature of 45 degrees C. The COP exceeds 0.5 even under a heat source temperature of 65 degrees C. (c) 2005 Elsevier Ltd and IIR. All rights reserved.
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