Energy System with Solid Oxide Fuel Cells and Steam-Injected Gas Turbine

A power system scheme with solid oxide fuel cells and steam-injected gas turbine with overexpansion has been proposed. A mathematical model of the hybrid solid oxide fuel cell–gas turbine (SOFC-GT) system has been developed, allowing for the optimization of the thermodynamic parameters of its gas turbine component. Optimization calculations of the power plant efficiency with a capacity of 2500 kW have been performed. The obtained results have determined directions for the creation of promising energy systems with fuel cells and gas turbines, expanding the understanding of the processes that govern energy conversion.