In order to improve the utilization rate of renewable energy and establish an energy-saving heating system suitable for civil dwellings in hot summer and cold winter areas,the actual performance of solar airsource heat pump coupled phase change accumulator heating system is studied.A model of solar airsource heat pump coupled phase change accumulator heating system is established by TRNSYS software,and a solar air-source heat pump heating system set up as comparative object.The simulation results of the above two systems'four aspects-the heat production,power consumption,energy efficiency ratio,and indoor human body thermal comfort are analyzed.And the indoor thermal comfort of the above two systems is evaluated by the PMV-PPD evaluation method.The power consumption of the heating system with coupled phase change accumulator is lower than that of the heating system without phase change,and the energy saving ratio is 13.29％.And the average energy efficiency ratio of the former system is 3.5,and the latter system 3.32,which is an improvement of 5.14％.The former heating system can provide a class I level of indoor thermal environment for the human body,and the latter heating system can provide a class Ⅱ level.So the solar air source heat pump coupled phase change accumulator heating system has better energy conservation,higher system energy efficiency,better comfort than that of the phase change free heating system,and improved renewable energy utilization.
关键词
TRNSYS/空气源热泵/相变储能/热舒适
Key words
TRNSYS/air-source heat pump/phase change energy storage/thermal comfort
维普
万方数据