4E Transient Analysis of a Solar-Hybrid Gas-Turbine Cycle Equipped with Heliostat and MED

The current study investigates a cogeneration cycle of power and freshwater integrated with solar system. system is the heliostat type, which considered to preheat inlet air in combustion chamber 25-MW gas turbine. waste heat turbine output stream used produce freshwater. Parameters such as ambient temperature irradiance significantly affect system’s performance; hence, all analyses, including those pertaining energy, exergy, economics, environment, were conducted transiently, one-hour time step throughout year so that impacts these effective parameters could be examined. Besides analysis assuming constant mass flow rate for entering compressor, calculations repeated assumption volumetric evaluate same conditions natural plants. Given rate, every 10-degree increase temperature, compressor consumption decreased by approximately 2%. Moreover, sensitivity performance terms was performed, corresponding results are presented. Finally, some correlations presented estimate variations net due variations. demonstrate Bushehr, Iran, one-degree leads an 0.67 percentage decrease net-generated power. In end, investigated under climatic irradiation intensities several cities Iran different countries plants have already been established. obtained compared; it concluded lowest annual cost electricity generation related Isfahan reduces more than 20% (2.32 Cents/kWh) compared base cycle.