期刊
ENERGY CONVERSION AND MANAGEMENT
卷 85, 期 -, 页码 888-894出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2013.12.070
关键词
Cogeneration system; Waste heat recovery; Rankine cycle; Absorption refrigeration cycle; Cascade
资金
- National Basic Research Program of China (973 Program) [2011cb707201]
- National Natural Science Foundation of China [51206117]
- Natural Science Foundation of Tianjin [12JCQNJC04400]
This study presents a performance analysis of a novel electricity-cooling cogeneration system (ECCS) which combines a Rankine cycle (RC) with an absorption refrigeration cycle (ARC) to recover the exhaust heat of marine engine aboard ships. The RC is to provide electricity using water as the working fluid and the ARC is to provide cooling capacity needed aboard ships using a binary solution of ammonia-water as the working pair. Several performance parameters, including electricity output of Rankine cycle, cooling capacity, coefficient of performance (COP) of absorption refrigeration cycle and exergy efficiency, are analyzed and optimized. The simulation results indicate that compared with basic Rankine cycle, higher exergy efficiency can be realized by ECCS due to the extra cooling energy generated by the ARC, especially at a low condensing temperature of Rankine cycle. When the condensing temperature is 323 K and the superheat is 100 K, the exergy efficiency of the cogeneration system increases by 84%. (C) 2014 Elsevier Ltd. All rights reserved.
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