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Indexed by:期刊论文

Date of Publication:2017-01-01

Journal:Journal of Harbin Institute of Technology (New Series)

Included Journals:Scopus

Volume:24

Issue:1

Page Number:43-50

ISSN No.:10059113

Abstract:In order to improve efficiency of a combined power system in which waste heat from exhaust gas could be efficiently recovered and cold energy of liquefied natural gas (LNG) could be fully utilized as well. A system simulation and thermodynamic analysis were carried out, the Kalina cycle was reorganized by changing the concentration of   basic composition  , so that a better thermal matching in the heat exchanger could be obtained and the irreversibility of the system was decreased. It was found that the Kalina cycle generally used in the bottom of combined power cycle could also be used to recover the cold energy of LNG. The results show that the exergy efficiency of 42.97% is obtained. Compared with the previous system attained the exergy efficiency of 39.76%, the improved system has a better performance. ? 2017, Harbin Institute of Technology. All right reserved.