Energy and exergy analysis of a novel trigeneration system based on ejector refrigeration cycles

In this research, combined cycle of heat, cold and power production has been simulated and function of the combined cycle has been evaluated in terms of energy and exergy. Moreover, the effect of different parameters including the generator temperature, Pinch point temperature difference and superheated temperature difference on the efficiency of energy, exergy, output work, irreversilbilities and the coefficient of performance of ejector refrigeration cycle has been studied. The combined system proposed in this study includes organic Rankine cycles including pump, steam generator, compressor, turbine, heat exchanger, separator, mixer and ejector refrigeration cycle, which in order to generate power and meet the thermal and refrigeration needs, including heating, Cooling as well as spa is designed for consumption. The results imply that by increasing the input heat to the generator, thermal efficiency of the cycle mainly increases. Also, under the same experimental conditions, with an increase in the temperature of the condenser and the evaporator, thermal efficiency of the whole cycle, studied in this research, has an increasing trend. Highest exergy dissipation is in the heater and the generator. The results show that the generator and the turbine are the most effective equipment in the function of the whole system.