604 高湿分利用ガスタービンプラントの起動停止方法の検討(関東支部茨城講演会)

概要

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Hitachi have proposed and been developing Advanced Humid Air Turbine (AHAT) cycle, which is a gas turbine system generating electric power at high efficiency compared to conventional combined cycle using high humidity air. We started construction of 3MW class AHAT cycle performance demonstration plant. AHAT is a newly developed system, therefore it is necessary to study plant operation method including start & stop procedure. In this paper, first, the start timing of spray at Humidification Tower was studied. Spray must be initiated before GT load reaches 60% Load, because turbine inlet temperature reach design temperature at this point. Second, how to initiate spray at Humidification Tower was studied. It is best method to operate both of the cross valve A and the cross valve B simultaneously. Because uneven spray is a cause of performance degradation.
一般社団法人日本機械学会の論文
2005-09-08