습냉매를 적용한 증기-증기 이젝터용 OTEC 시스템의 성능비교
The performance comparison of vapor-vapor ejector OTEC system using wet refrigerants
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
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.
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.
참고문헌 (6)
- 윤정인, "다양한 작동유체를 이용한 20 kW급 해양온도차 발전 사이클 성능 분석", 한국마린엔지니어링학회지, 37(8), pp.836~842 (2013), 한국마린엔지니어링학회[DOI]
- Yoon. J. I, "Efficiency comparison of subcritical OTEC power cycle using various working fluids", Journal of Heat and Mass Transfer, 50(7), pp.985~996 (2014)
- 윤정인, "온배수를 이용한 혼합냉매용 해양온도차 발전 사이클의 성능 특성", 한국동력기계공학회지, 17(6), pp.103~108 (2013), 한국동력기계공학회
- T. C. Hunga, "A study of organic working fluids on system efficiency of an ORC using low-grade energy sources", Journal of the Korea Society for Power system Engineering, 35(3), pp.1403~1411 (2013)
- Athanasios I. Papadopoulos, "On the systematic design and selection of optimal working fluids for Organic Rankine Cycles", Applied Thermal Engineering, 30, pp.760~769 (2010)
- Aspen Technology Inc, "Aspen HYSYS. Version 8.0", ~ (2014)