Analysis and simulation of hybrid solid oxide fuel cell-gas turbine cycle in design point and predicted efficiency in off design point

Hybrid system are power production systems, in which a thermal engine like a gas turbine is combined with a non thermal engine like a fuel cell. As such systems have higher efficiencies and lower contaminants than a gas turbine alone, they will play a great role on advanced power production system in near future. With using thermal energy of Solid oxide fuel cell in a gas turbine cycle can be achieved a hybrid system with high performance. In this paper, we investigate the thermodynamic performance of gas turbine combined system with oxide fuel cell with hydrogen-fueled internal improvement in design point and prediction power and efficiency system in off design point in order to find corresponding operating point on the characteristics of each component when the engine is running at a steady state speed or in equilibrium as it is frequently termed. All components of the hybrid system has been modeled separately, with the help of thermodynamic relations.