期刊
APPLIED THERMAL ENGINEERING
卷 30, 期 13, 页码 1692-1702出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2010.03.028
关键词
Water adsorption; Heat pumps; Adsorption chiller; Sorption materials
资金
- German Ministry of Education and Research (BMBF) [01SF0303]
Within this article we illustrate recent development of sorption materials for heat transformation applications. A broad overview on the possible performance of currently available and recently developed materials ranging from zeolites across aluminophosphates and silicoaluminophosphates to the novel class of metal organic framework materials is given. Materials are evaluated with respect to the use in thermal driven adsorptive heat pumping and cooling applications with water as refrigerant. Therefore a new fingerprinting method is used to evaluate samples under two typical cycle conditions with driving temperatures of 95 degrees C and 140 degrees C. A unique aspect is that results can be used for closed as well as for open adsorptive systems. The highest water uptake for driving temperatures of 95 degrees C was found for an AlPO-18 with 0.253 g/g, which is more than six times higher than the reference silica gel in our comparison. For driving temperatures of 140 degrees C the highest water uptake was found for the metal organic framework Cu-BTC with 0.324 g/g. Furthermore we give first results on the integral heat of adsorption in the cycle and results of hydrothermal treatment of most promising materials. (C) 2010 Elsevier Ltd. All rights reserved.
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