Thermodynamic modeling and performance analysis of a solar gas turbine cycle equipped with a solid oxide fuel cell

The main purpose of this article is thermodynamic modeling and performance analysis of solar gas turbine hybrid system equipped with a solid oxide fuel cell. Double and triple hybrid cycles have been studied by researchers in recent years. In this research, it has been tried to investigate the hybrid cycle of gas turbine and solid oxide fuel cell by being equipped with a solar receiver as a new triple cycle (SOFC-Solar GT) and to compare its results with the double cycle gas turbine and fuel cell (SOFC-GT). In this research, two different configurations have been considered for this triple hybrid system. Compressor pressure ratio, gas temperature entering the turbine, solar radiation intensity, and fuel cell temperature have been evaluated as important and effective parameters in the cycle performance. Examining the results of this research shows that the use of solar receiver will reduce the fuel consumption in the hybrid system and increase the overall efficiency by 8-9%. On the other hand, the results show that the net production power in solar hybrid cycles is 45- 50% more than the basic cycle.