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http://dx.doi.org/10.7836/kses.2014.34.4.051

The performance comparison of vapor-vapor ejector OTEC system using wet refrigerants  

Yoon, Jung-In (Department of Refrigeration and Air Conditioning Engineering, Pukyong University)
Son, Chang-Hyo (Department of Refrigeration and Air Conditioning Engineering, Pukyong University)
Kim, Young-Bok (Department of Mechanical System Engineering, Pukyong University)
Ye, Byung Hyo (Graduate school of Refrigeration and Air Conditioning Engineering, Pukyong University)
Ha, Su-Jeong (Graduate school of Refrigeration and Air Conditioning Engineering, Pukyong University)
Lee, Ho-Saeng (Korea Institute of Oceans Science and Technology, Seawater Utilization Plant Research Center)
Kim, Hyeon-Ju (Korea Institute of Oceans Science and Technology, Seawater Utilization Plant Research Center)
Publication Information
Journal of the Korean Solar Energy Society / v.34, no.4, 2014 , pp. 51-56 More about this Journal
Abstract
In this paper, OTEC(Ocean Thermal Energy Conversion) system with vapor-vapor ejector is newly proposed. And 6 wet refrigerants are applied into the proposed OTEC system for performance comparison. The results of comparison performance are as follows. In the view of system efficiency, R32/R744(90:10) has the highest efficiency among the 6 refrigerants. In case of evaporation capacity, pump work and mass flow rate of working fluid, R744, R717 and R717 is lowest value, respectively. As this results, the vapor-vapor ejector is able to increase the efficiency of system. And It is necessary to select the optimized working fluid considering environmental and economic factors.
Keywords
Ocean Thermal Energy Conversion(OTEC); Efficiency; Vapor-vapor ejector; Working fluid; Performance comparison; Wet refrigerant;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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