https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/142 2026-04-04T08:42:32Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8666 Title: Performance characteristics of 20kW OTEC pilot plant in Korea Authors: Lee, H.-S.; Jung, Y.-K.; Kim, Y.-S.; Lim, S.-T.; Kim, H.-J. Abstract: To experiment 20kW OTEC, the closed-cycle type of OTEC (Ocean Thermal Energy Conversion) was designed and manufactured. R32 (Difluoromethane, CH2F2) was used as the working fluid and a temperature of heat source and heat sink is 26°C, 5°C, respectively. The semi-welded type heat exchanger is applied for the evaporator and condenser and the cycle was designed for the gross power of 20kW. In the plate arrangement of the semi-welded type heat exchanger, one channel for working fluid is welded, and another channel for seawater is sealed by gasket. In this paper, various performance evaluation and experiment was carried out as constructing subminiature pilot plant of the OTEC and compared with the results of cycle analysis. In results, gross power of the turbine shows 20.1kW and cycle efficiency is 1.91% when heat source and heat sink is 26°C, 5°C. For the variation of temperature difference between the heat source and heat sink, when the temperature difference was 21°C, the gross power increased by about 33.3% from that when the temperature difference was 19°C. Copyright ？ 2015 by the International Society of Offshore and Polar Engineers (ISOPE). 2015-01-01T00:00:00Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/1340 Title: 해양환경공학 (강원도 고성 해양심층수 개발사례) Authors: 김현주 2008-01-01T00:00:00Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/1602 Title: 해양심층수의 개발 및 이용 Authors: 김현주 2005-01-01T00:00:00Z https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/1735 Title: 해양심층수 Authors: 김현주 2004-01-01T00:00:00Z