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LNG 냉열을 이용하는 암모니아-물 랭킨 사이클과 유기 랭킨 사이클의 열역학적 성능 특성 해석Thermodynamic Performance Analysis of Ammonia-Water Rankine Cycle and Organic Rankine Cycle Using Cold Energy of LNG
- Other Titles
- Thermodynamic Performance Analysis of Ammonia-Water Rankine Cycle and Organic Rankine Cycle Using Cold Energy of LNG
- Authors
- 김경훈
- Issue Date
- Apr-2020
- Publisher
- 한국수소및신에너지학회
- Keywords
- Ammonia-water Rankine cycle; Organic Rankine cycle; LNG; Cold energy; Low grade heat source; 암모니아-물 랭킨 사이클; 유기 랭킨 사이클; 액화 천연가스; 냉열 에너지; 저등급 열원
- Citation
- 한국수소및신에너지학회논문집, v.31, no.4, pp 363 - 371
- Pages
- 9
- Journal Title
- 한국수소및신에너지학회논문집
- Volume
- 31
- Number
- 4
- Start Page
- 363
- End Page
- 371
- ISSN
- 1738-7264
- Abstract
- Recently, the technologies to utilize the cold energy of liquefied natural gas (LNG) have attracted significant attention. In this paper, thermodynamic performance analysis of combined cycles consisting of ammonia Rankine cycle (AWR) and organic Rankine cycle (ORC) with LNG Rankine cycle to recover low-grade heat source and the cold energy of LNG. The mathematical models are developed and the effects of the important system parameters such as turbine inlet pressure, ammonia mass fraction, working fluid on the system performance are systematically investigated. The results show that the thermal efficiency of AWR-LNG cycle is higher but the total power production of ORC-LNG cycle is higher.
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