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Status and Prospects of OTEC Integrated with Seawater Desalination in Japan
Yasuyuki Ikegami,Sami Mutair,Takafumi Morisaki 한국해양환경·에너지학회 2012 한국해양환경공학회 학술대회논문집 Vol.2012 No.11
Oceans cover approximately 71% of the total surface area of earth; hence oceans are considered the biggest solar collectors on earth. Most of the heat energy transferred by sunlight is absorbed by the thin layer of the ocean’s water near the surface. Below this layer, however, the temperature declines gradually with depth. Ocean Thermal Energy Conversion (OTEC) is a system that converts the temperature difference between the surface and the deep waters of the ocean into electricity. In addition, OTEC provides a clean source of fresh water by further utilization of the remaining temperature difference between the seawaters discharging from the power generation plant in driving the desalination process. This paper describes the evolution of OTEC and desalination research in Japan.