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HITACHI REVIEW

Hitachi

AUTHORS

Takeshi Umezawa Turbine Plant Design Dept., Hitachi Works, Power Systems, Hitachi, Ltd.
Ryoichi Okura Thermal Power Plant Engineering Dept., Hitachi Works, Power Systems, Hitachi, Ltd.
Makoto Sato Thermal Power Plant Design Dept., Hitachi Works, Power Systems, Hitachi, Ltd.
Yuji Nagashima Power Plant Control Systems Engineering Dept., Power Control Systems & Public Control Systems Div., Information & Control Systems Div., Power Systems, Hitachi, Ltd.

OVERVIEW

Designed by Kobe Steel, Ltd. as an IPP (independent power producer) in Japan, the Shinko Kobe No. 2 Power Station—with a rated output of 700 MW —commenced commercial operation on April 1st, 2004. As a major equipment manufacturer, Hitachi has been involved in the construction of this plant from the start. Producing steam conditions corresponding to a main steam pressure at the turbine inlet of 24.1 MPa·g, a main steam temperature of 538°C, a reheated-steam temperature of 566°C, and a condenser vacuum pressure of —96.26 kPa, and adopting 40-inch (about 102-cm) blades as the last-stage blades, this steam-turbine was designed to attain high-efficiency power generation. This IPP also has a system for supplying steam to a nearby sake brewing maker, and specific control of this system is performed by the IPP. As a so-called "urban power plant" located in a suburb of Kobe city, this power plant has been installed according to a shortened construction schedule and with appropriate attention given to the concerns of local residents.

KEYWORDS

IPP, steam turbine, HIACS-7000, TC4F-40, 700 MW

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