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http://dx.doi.org/10.5916/jkosme.2013.37.8.829

Exergy analysis of R717 high-efficiency OTEC cycle  

Yoon, Jung-In (Department of Refrigeration and Air Conditioning Engineering, Pukyong National University)
Son, Chang-Hyo (Department of Refrigeration and Air Conditioning Engineering, Pukyong National University)
Yang, Dong-Il (Graduate School of Air Conditioning Engineering, Pukyong National University)
Kim, Hyeon-Uk (Graduate School of Air Conditioning Engineering, Pukyong National University)
Kim, Hyeon-Ju (Korea Advanced Institute of Science and Technology)
Lee, Ho-Saeng (Korea Advanced Institute of Science and Technology)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.8, 2013 , pp. 829-835 More about this Journal
Abstract
This paper describes an analysis on exergy efficiency of proposed high-efficiency R717 OTEC power system to optimize the design for the operating parameters of this system. The operating parameters considered in this study include outlet pressure in an evaporator and high turbine, inlet pressure condenser and vapor quality at cooler outlet, respectively. The main results are summarized as follows : As the outlet pressure in an evaporator and vapor quality at cooler outlet of R717 OTEC power system increases, the exergy efficiency of this system increases, respectively. But outlet pressure in the high turbine, inlet pressure in the condenser of R717 OTEC power system increases, the exergy efficiency of this system decreases, respectively. And, incase of exergy efficiency of this OTEC system, the effect of inlet pressure in an evaporator and outlet pressure in the high turbine on R717 OTEC power system is the largest and the lowest among operation parameters, respectively.
Keywords
R717; High-Efficiency; Ocean Thermal Energy Conversion Power Cycle; Exergy Analysis;
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