Performance Analysis of the Coupled Heating System of the Air-Source Heat Pump, the Energy Accumulator and the Water-Source Heat Pump

In the remote areas of northern China without central heating and gas supply, for users intending to replace coal-boilers, air-source heat pump system is always questionable due contradiction between its capacity user’s demand, especially in very cold areas, whose COP economy poor. The accumulator with phase change materials would be a promising one solve this problem. With help TRNSYS software, coupled pump, accumulator, water-source operation mode are provided analyzed based on source renovation demand middle school Tianshui City suburb which has 5560 m2 area heated. average simulated during period 2.23. Based simulation model results, was carried out, tested over day 2 2.05, respectively, also reveals validity numerical method