1MW OTEC 플랜트의 해석 및 개념설계

Abstract

The ocean thermal energy conversion (OTEC) converts the temperature difference between the deep ocean water and surface water into the mechanical energy to generate the electric power. The base load can be provided by the yearly temperature difference in the equatorial waters of over 20℃, and the available resource is abundant. Therefore, this can be a useful ocean energy, which is a highly feasible new and renewable energy. In this study, the analysis and conceptual design of the 1 MW OTEC plant were conducted. The temperature difference used was 24℃, assuming a 29℃ surface water and a 5℃ deep water. The working fluid was R-32, and the thermodynamic cycle was the basic Rankine cycle. To estimate the maximum net power, the cycle was analyzed according to diverse parameters. When the pipe diameter was 1.2 m in the deep water, the net power was approximately 727.34 kW. In addition, the generation unit price of the 1 MW OTEC plant was estimated based on the cycle analysis results. difference in the equatorial waters of over 20℃, and the available resource is abundant. Therefore, this can be a useful ocean energy, which is a highly feasible new and renewable energy. In this study, the analysis and conceptual design of the 1 MW OTEC plant were conducted. The temperature difference used was 24℃, assuming a 29℃ surface water and a 5℃ deep water. The working fluid was R-32, and the thermodynamic cycle was the basic Rankine cycle. To estimate the maximum net power, the cycle was analyzed according to diverse parameters. When the pipe diameter was 1.2 m in the deep water, the net power was approximately 727.34 kW. In addition, the generation unit price of the 1 MW OTEC plant was estimated based on the cycle analysis results.