海洋温度差発電の新しい展望(The New Prospects of the Ocean Thermal Energy Conversion )
- 標題
- 海洋温度差発電の新しい展望(The New Prospects of the Ocean Thermal Energy Conversion )
- 作者
- 上原 春男(Haruo UEHARA)
- 文件屬性
- 日本研究
- 知識分類
- 能源利用
- 出版年
- 2008
- 刊名
- 海洋深層水研究
- 卷
- 9
- 期
- 1
- 頁
- P 21-30
- 點閱數
- 4685
摘要
The five biggest problems in the 21st century are those on population, energy, food, freshwater and earth environment. The key to solving these problems must be the ocean, which has potential resources of water, elements and energy. Deep ocean water (DOW) is particularly promising, because DOW is cold, clean, nutrient-rich and stable in water quality. When DOW is used with warmer surface ocean water, energy can be generated through Ocean Thermal Energy Conversion (OTEC). Among various trials, only the author's group has been successful and new technologies including Uehara Cycle has been developed. To elevate the thermal conversion rate, Integrated Ocean Thermal Energy Conversion (I-OTEC) was proposed. I-OTEC is a cascade use of OTEC combined with various techniques such as desalination of seawater, hydrogen production, collection of Lithium, production of mineral water, formation of fishing ground and air conditioning. The real plant was deployed at Institute of Ocean Energy, Saga University (IOES) and combinations of each technique have been tested. The prospective sites for I-OTEC were distributed to 96 nations or districts. If I-OTEC is applied in 2% of these sites, 200-108 kw of electric power and 400 × 200 × 108 t/year of freshwater may be generated.