Abstract
In this paper, solar dish collectors incorporated with phase change material storage are used for providing the required thermal energy of a steam power plant with a net production capacity of 1063 MW. The storage of phase-change material is employed during the night and in the absence of solar thermal sources. In order to prevent heat losses in the condenser, a large part of the dissipated heat is given to a multi-effect desalination system. The desalination system generates 8321 kg/s of fresh water by utilizing 2571 MW of waste heat from the steam power plant. This hybrid system has a total electrical efficiency of 28.84%, and total thermal efficiency of 97.18%. Exergy analysis is used to examine the integrated structure by means of the second law of thermodynamic. The exergy efficiency of the whole integrated structure is 52.23%, and the highest share of exergy destruction among equipment is related to heat exchangers and collectors with 46.83% and 40.93%, respectively. Hysys, Transys, and Matlab software are used in order to simulate the hybrid system by means of the weather input data of the case study, i.e. the city of Bushehr. Sensitivity analysis of the vital indicators of the system is conducted, and suitable solutions for improving the model and determining the amount of decision making parameters are made.
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