Modeling hydrogen applications in combined cycle heat and power plants

Abstract

Combined cycle heat and power (CHP) plants are expected to play an important role in balancing generation of heat and electricity from non-dispatchable renewable energy. Retrofitting a CHP plant for hydrogen combustion is a prominent option to decarbonize (part of) its electricity and heat generation. In this work, we study and optimize different options for using hydrogen in CHP plants, namely: direct combustion in the gas turbine, supplementary firing in the heat recovery boiler (duct burner), and oxy-fuel combustion of hydrogen for direct steam production.