Patent ID: 9080467
Filing Date: 2015-07-14
Classification: F01K,F22B,F22D,F22G

Abstract:
1. A method for regulating a brief increase in power of a steam turbine that has an upstream fossil-fired once-through steam generator comprising a plurality of economizer, evaporator and superheater heating surfaces which form a flow path and through which a flow medium flows, the method comprising: increasing the flow of the flow medium through the fossil-fired once-through steam generator in order to achieve the brief increase in power of the steam turbine, using a desired enthalpy value at the outlet of an evaporator heating surface as a control variable for determining a desired value for the flow of the flow medium through the fossil-fired once-through steam generator, and reducing the desired enthalpy value in order to achieve the brief increase in power of the steam turbine.