Tightening Turbine Control

摘要

Combined cycle plants give greater output for the same amount of energy and emissions. But this comes at a cost-increased complexity of design and operations. Optimizing a combined cycle plant requires tuning the gas turbine not just for its own efficiency but also to maximize the stability and efficiency of the heat recovery steam generator (HRSG).rnThe best place to start is right at the beginning: controlling the inlet guide vanes (IGVs) for the combustion turbine in order to regulate the exhaust temperature leading into the HRSG boiler.