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对长沙市某住户使用的蓄能型空气源热泵地板辐射供暖系统进行了实测,检测该系统在除霜工况下的除霜时间、循环水温、室内温度等运行参数,通过Fanger模型PMV-PPD评价指标对室内热舒适性进行分析。并在2种室外工况下将蓄能型空气源热泵地板辐射供暖系统与VRV系统进行对比实验,比较两系统在长沙地区冬季制热的室内热舒适性与运行经济性。实验结果表明,在测试期间最不利工况日内,蓄能型空气源热泵地板供暖系统除霜时间为6~8 min,室内1.1 m高处温度维持在20.5~22.9℃,地板温度维持在24.9~29.3℃,PMV维持在-0.53~0.15,可靠性良好。间歇运行下的蓄能型空气源热泵地板辐射供暖系统与VRV系统相比具有更好的室内舒适度且更为节能。
The energy storage type air source heat pump radiant floor heating system used by a household in Changsha was measured. The defrosting time, circulating water temperature and indoor temperature of the system were measured. The parameters of the system were analyzed by the Fanger model PMV-PPD Evaluation index Indoor thermal comfort analysis. And under two kinds of outdoor conditions, the energy-saving air source heat pump floor radiant heating system and VRV system are compared with each other to compare the indoor thermal comfort and operational economy of the two systems in winter heating in Changsha area. The experimental results show that the defrosting time of the storage-type air source heat pump floor heating system is 6-8 min during the most unfavorable working day of the test period, the indoor temperature is maintained at 20.5-22.9 ℃ at the height of 1.1 m and the floor temperature is maintained at 24.9 ~ 29.3 ℃, PMV maintained at -0.53 ~ 0.15, good reliability. Intermittent operation of the storage type air source heat pump floor radiant heating system with VRV system has better indoor comfort and more energy.