Sliding Pressure Operation in Combined Cycles

This paper describes various methods of the power plant load control and gives technical comparison between those methods. It is shown that sliding pressure control is more attractive for combined cycles than for conventional boiler fired plants. A simple graphical method to determine combined cycle steam turbine output at various gas turbine loads is proposed. It also shows that the effectiveness of the sliding pressure operation increases with the decrease of gas turbine load.Copyright © 1982 by ASME