Thermodynamic and Thermoeconomic Analysis of a Multigeneration System Boosted with a Thermoelectric Based on PV/T and PTC Solar Collectors

In this research, thermodynamic and thermoeconomic analysis of a new multigeneration system based on the Parabolic trough collector and the photovoltaic-thermal solar collectors is carried out to produce power, cooling, hot water, hydrogen and freshwater. The proposed system includes an organic Rankine cycle, double-effect absorption refrigeration system, PEM electrolyzer and the reverse osmosis desalination unit. Analysis of energy, exergy, thermoeconomics, as well as analysis of various parameters was done by using the EES software. The results show that the energy and second law efficiency of the system is ۳۳.۴۹% and ۱۳.۳۱%, respectively. The net power produced by the system is ۱۲۷۱.۴۸ kW in which ORC turbine has the maximum share. Moreover, the coefficient of performance of the cooling system is achieved to be ۱.۰۹۷ by considering the basic assumptions. The hydrogen and freshwater production rates are ۵۴۲.۳ kg/day and ۴.۵۵ kg/s, respectively. Finally, the rate of exergy destruction in each part of the system shows that the highest rate of exergy loss occurs in the PTC collector and the organic Rankine cycle with the amount of ۵۳۵۷۵ kW and ۱۶۲۴ kW, respectively, and in the organic Rankine cycle, the thermoelectric generator unit and evaporator have the largest share of exergy losses.

کلیدواژه ها:

Multigeneration system ، Photovoltaic-thermal collector ، solar collector ، Thermodynamic analysis ، Thermoeconomic analysis