Combined cycle power plant

摘要

A power plant (10) is provided and includes a gas turbine engine (20) to generate power, a heat recovery steam generator (HRSG) (30) to produce steam from high energy fluids produced from the generation of power in the gas turbine engine (20), a steam turbine engine (40) to generate additional power from the steam produced in the HRSG and a thermal load reduction system to reduce thermal loading of components of the HRSG (30) and/or the steam turbine engine during at least startup and/or part load operations, which includes an eductor by which a mixture of compressor discharge air and entrained ambient air is injectable into the HRSG (30) and/or an attemperator to cool superheated steam to be transmitted to the steam turbine engine (40) and a detector disposed within the HRSG (30) to facilitate identification of hot spots therein.