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http://dx.doi.org/10.3795/KSME-B.2014.38.6.483

Thermodynamic Performance Analysis of Ammonia-Water Power Generation System Using Low-temperature Heat Source and Liquefied Natural Gas Cold Energy  

Kim, Kyoung Hoon (Dept. of Mechanical Engineering, Kumoh Nat'l Institute of Technology)
Kim, Kyung Chun (School of Mechanical Engineering, Pusan Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.6, 2014 , pp. 483-491 More about this Journal
Abstract
In this study, a thermodynamic analysis was carried out for a combined power generation system using a low-temperature heat source in the form of sensitive energy and liquefied natural gas cold energy. An ammonia-water mixture, which is a zeotropic mixture, was used as the working fluid, and systems with and without a regenerator were comparatively analyzed. The effects of the mass fraction of ammonia and the condensation temperature of the working fluid on the system variables, including the net work production, exergy destruction, and thermal and exergy efficiencies, are analyzed and discussed. The results show that the performance characteristics of the system varied sensitively with the ammonia concentration or condensation temperature of the working fluid. The system without regeneration was found to be better in relation to the net work per unit mass of the source fluid, whereas the system with regeneration was better in relation to the thermal or exergy efficiency.
Keywords
Low-Temperature Heat Source; LNG; Ammonia-Water Mixture; Performance Analysis; Exergy;
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Times Cited By KSCI : 3  (Citation Analysis)
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