Heating performance analysis of ice cool storage air conditioning system combined with airsource heat exchanger

Focusing on the increasing heating requirements in hot summer and cold winter zone, proposes a novel ice cool storage air conditioning system combining with an additional airsource heat exchanger to realize both heating and cooling. Taking a restaurant equipped with ice cool storage air conditioning system in Shanghai as an example, designs a retrofit solution to meet the heating demand. Analyses the economic and technical feasibility and compares with a conventional system with auxiliary gasfired boiler. Moreover, investigates the application potential of the proposed system in five cities of hot summer and cold winter zone. The results show that the average primary energy efficiency of the new proposed system in heating mode can reach 1.53, with an energy saving rate of 39.4% compared with the gasfired boiler. In addition, the average primary heating energy efficiencies in five cities are in the range of 1.5~1.6. The retrofit solution for existing ice cool storage air conditioning systems has advantages of low investment, small engineering quantity as well as high energy saving ratio, which could be a potential heating solution in the Yangtze River basin.