Experimental Study on Solution Regeneration Performance of Closed-type Heat-source Tower

Abstract To prevent frosting of air source heat pump used for space heating in winter, heat-source tower heat pump has been developed for its advantages such as frost-free, stable and reliable. Due to the mass transfer process between air and solution, however, the solution can continue to absorb the moisture of air, which results in the decrease of solution concentration and the increase of freezing point. It’s very essential to regenerate the dilute solution to ensure the stability and reliability of the operation of heat-source tower heat pump. Therefore, in this paper, the experimental test of closed-type heat-source tower is built to study the effect of inlet parameters of three fluids on heat and mass transfer performance under low temperature condition. According to the experimental results, with the increase of air volume, flow rate of internally heating water, so does the solution regeneration performance of closed-type heat-source tower.