2. 蒸気タービンの高温化最新技術動向(蒸気タービンの最新技術動向,オーガナイズドセッション)

概要

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The capacity of PC power plants in Japan rose to 35GW in 2004. The latest plants have a 600 deg-C class steam temperature and a net thermal efficiency of approximately 42% (HHV). On the other hand, aged plants, which were built in the '70s and '80s, will reach the point where they will need to be rebuilt or refurbished in the near future. The Japanese government launched the "Cool Earth-Innovative energy Technology Program" in March 2008 to contribute to the reduction of substantial global greenhouse gas emissions. 21 technologies were selected. The Advanced Ultra Super Critical pressure power generation (A-USC), which aims to system with 46% power generation efficiency around 2015, is included in the technologies. The A-USC Technology is suitable for retrofitting older plants and can reduce CO_2 emissions by about 15% and besides, the technology will contribute to the optimization of the steam inlet conditions for 1700 deg-C class GTCC bottoming cycles.
2010-10-20