Design of LNG-fired USC steam generator for units Nos. 1 and 2 of Kawagoe Power Station, Chubu Electric Power Co. , Inc. Technical bulletin

Units Nos. 1 and 2 of Kawagoe Power Station, Chubu Electric Power Co., Inc. are the first modern Ultra Supercritical pressure units with the steam conditions of 316 kgf/cm2g, 566/566/566 deg C. The No. 1 unit has commenced commercial operation in June 1989. Although the advanced steam conditions are adopted, the required capabilities for the latest designed utility boilers in Japan-DSS operation, high load change rate, FCB operation and so on-are also taken into consideration. Therefore a lot of improved technology and materials are adopted for the design of these steam generators.