Completion of High-efficiency Coal-fired Power Plant

• Volume 52 Number 2 August 2003

AUTHORS

OVERVIEW

Raising the efficiency of thermal power plants has become quite important in order to reduce carbon dioxide (CO2) emissions to minimize the global warming effect. Recognizing these circumstances, Hokkaido Electric Power Co., Inc. (HEPCO)'s new 700-MW Tomatoh-Atsuma Power Station No. 4 Unit, a coal-fired power plant that adopts Japan's highest steam pressure and temperature conditions of 25 MPa-600°C/600°C, was completed in June 2002. Hitachi, Ltd. designed and built the turbine generator, the primary equipment at the power plant. The design achieved excellent efficiency with high reliability by developing a high-performance steam turbine well adapted to higher temperature and pressure steam conditions, a condenser featuring a newly developed arrangement of condenser tubes that balances the steam inflow and optimizes condensing efficiency, and other leading-edge technologies. Running and operating the power plant has also been markedly improved through centralized operation and supervision using a CRT (cathode-ray tube)-based operation system and sharing operational data on a large 100-inch screen. This enables the plant to be operated by a small number of personnel from the central control room.

TO READ THIS ARTICLE

See PDF file for details (PDF format, 224kByte)

RELEVANT SITE

The Hitachi Hyoron (Japanese Only)

KEYWORDS

power plant, coal-fired, steam turbine

Adobe® Reader® of Adobe Systems Incorporated (Adobe Systems) is required to view PDF documents.

• page top