Abstract
Abstract: In this paper, suitable working fluid of 1MW Organic Rankine Cycle(ORC) with liquid-vapor ejector using effluent from power plant is selected. The results of comparison performance of 5 refrigerants are as follows; R600a, R134a, R1270, R236fa, R235fa. The operating parameters considered in this study include the condensation capacity evaporation capacity and efficiency. As a result of comparison of basic ORC system and with liquid-vapor ejector, with ORC system presents the higher system efficiency since the ejector makes the turbine outlet pressure lower than condensation pressure through its pressure recovery. Also, this ejector ORC system is advantageous in miniaturizing the size of components owing to decrease of evaporation capacity and condensation capacity. Key Words ：Organic Rankine Cycle(ORC), Liquid-Vapor Ejector, Working Fluid, Power Plant Effluent **†윤정인(교신저자) : 부경대 냉동공조공학과 E-mail : yoonji@pknu.ac.kr, Tel : 051-629-6180 *김현욱 : 부경대 냉동공조공학과 대학원**손창효 : 부경대 냉동공조공학과**†Jung-In Yoon(corresponding author) : Department of Refrigeration and Air Conditioning Engineering, Pukyoung University.E-mail : yoonji@pknu.ac.kr, Tel : 051-629-6180 *Hyeon-Uk Kim : Graduate school of Refrigeration and Air Conditioning Engineering, Pukyoung University.**Chang-Hyo Son : Department of Refrigeration and Air Conditioning Engineering, Pukyoung University.
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