C-1 東新潟火力発電所第4号系列ガスタービン吸気温度低減による増出力効果について(システム・運用,一般講演)

概要

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The output decrease due to inlet temperature increases of gas turbines in summer is a critical issue. For decreasing the inlet temperature efficiently, the mist atomization technology developed as a thermal environment mitigating technology was paid attention to, because the atomized mist is minute, and the evaporation efficiency is very high. In the present study, a mist spray model was developed and applied to examinations. The most suitable nozzles were chosen, then effectiveness of the mist atomization was evaluated by the model. At the same time, flow-duration of inlet air channel of the gas turbine intended was analyzed, and positioning of the atomization devices was optimized. The mist spray device developed in this study was adopted for the 4-4 GT in Higashi-Niigata Power Station, and successfully increased the output power in summer. In addition, it has been confirmed by executing shutoff tests of atomized mists that the device operates safely after introducing appropriate inlet humidity limits.
2010-10-20