History of Power Plants and Progress in Heat Resistant Steels

摘要

During the last fifty years steam pressure and temperature in fossil-fired power plants have been continu- ously raised to improve thermal efficiency. Recent efforts for raising steam conditions are in response to the social demand for environmental protection as well as energy conservation concerns. Today the steam temperature of 600deg C for modern power plants equipped with swing load or sliding pressure demand func- tions has already been realized, and a goal for the future is the 630deg C to 650deg C class with ferritic steels.