The Investigation of Exergetic Performance of Cooling System With Geothermal Steam Ejector

Authors : İbrahim ÜÇGÜL

Pages : 1-13

View : 17 | Download : 8

Publication Date : 2014-11-18

Article Type : Research Paper

Abstract :In this study, application fields and potential of geothermal energy of Turkey are introduced. Then, steam ejector cooling systems using geothermal heat source are presented and thermodynamics of the system is explained. Energetic performance of the system insert ignore into journalissuearticles values(COP); is obtained by the first law of thermodynamics and exergetic performance of the system insert ignore into journalissuearticles values(COPEX); is obtained by the second law of thermodynamics. In this present study, generator temperatures for ejector cooling system, which will be designed suitably for geothermal fields with low and middle temperatures of Turkey, are selected at interval of two different temperatures insert ignore into journalissuearticles values(low and middle temperatures);. Generator temperatures insert ignore into journalissuearticles values(Tg); are 60-90C for applications with low temperatures, and 100-130C for applications with middle temperatures. The energetic performance insert ignore into journalissuearticles values(COP); and the exergetic performance insert ignore into journalissuearticles values(COPEX); of the system are evaluated for three different conditions of evaporator temperature insert ignore into journalissuearticles values(Te = 5, 10, 15 C); and two different conditions of condenser temperature insert ignore into journalissuearticles values(Tc = 30, 35 C);. The intervals of temperature for evaluating the system performances are obtained from the experimental steam ejector cooling system designed. The 96 different cases are examined and the results are presented with graphics.
Keywords : Geothermal energy, Steam ejector cooling, Energetic performance, Exergetic performance