期刊
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
卷 45, 期 -, 页码 145-159出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2015.01.051
关键词
Desiccant cooling; Air conditioning; Latent load; Solar energy; Direct evaporative cooler; Indirect evaporative cooler
资金
- King Abdulaziz City for Science and Technology (KACST) through the Science AMP
- Technology Unit at King Fahd University of Petroleum AMP
- Minerals (KFUPM), National Science, Technology and Innovation Plan [10-ENE1372-04]
The air conditioner should control the building sensible and latent load properly in order to provide the indoor comfort conditions. The conventional mechanical vapor compression system usually controls the latent load by the process of condensation of water vapor in which air is cooled below its dew point temperature and then reheated again up to the required supply conditions. The conditions where latent load is dominant these two processes i.e. overcooling and then reheating again will increase the consumption of electrical energy and emission of CO2 remarkably. To avoid this wastage of primary energy and emission of harmful gases, desiccant based evaporative cooling system is a good alternative to traditional air conditioning system which is cost effective as well as environment friendly. It can be driven by thermal energy which makes a good use of solar energy which is free as well as clean. In this paper, a review of desiccant based evaporative cooling systems has been presented. The present study is undertaken from variety of aspects including background and need of alternative cooling systems, concept of conventional and desiccant based evaporative coolers, system configurations, operational modes, as well as current status of the desiccant based evaporative cooling technology. The review work indicated that the technology of desiccant based evaporative cooler has a great potential of providing human thermal comfort conditions in hot and humid climatic conditions at the expense of less primary resources of energy as compared to conventional cooling systems. Some modified and modern evaporative coolers have also been introduced in this paper. (C) 2015 Elsevier Ltd. All rights reserved.
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