Abstract
In this paper, a new AMTEC/TAR hybrid system was proposed to utilize condensation heat of the alkali metal thermal to electric converter (AMTEC) as heat source for the triple-effect absorption refrigeration (TAR). Based on the first and second laws of thermodynamics, a theoretical analysis has been undertaken to evaluate the performance of the hybrid system. Meanwhile, the effects of the electrode current density, the condenser temperature in AMTEC, the pressure of medium pressure generator, and the temperatures of absorber, medium pressure generator and low pressure generator on the performance of the hybrid system were investigated and discussed. The results show that the AMTEC condensation heat can be effectively utilized by the TAR. When the evaporation temperature of AMTEC is 1200 K, the maximum value of exergetic efficiency of hybrid system is 42.7%, the input heat flow rate is 166.4 kW, and the output electric power and cooling load are 48.8 kW and 110.2 kW, respectively. The maximum exergy destruction rate is generally from the heat loss of AMTEC, but when the electrode current density is relatively high or the temperature of AMTEC evaporator is relatively low, the maximum exergy destruction rate comes out of the BASE.
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