摘要
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。
This paper analyzed the performance of the sensible heat storage ASHP（ air source heat pump） system used for floor radiant heating in Changsha,China from both the experimental and numerical points of view.Specifically,the defrosting performance and the indoor thermal comfort at the worst weather condition were experimentally investigated to verify the reliability of the system for domestic heating. And a comparative analysis of the sensible heat storage ASHP system and VRV system was realized in two typical outdoor conditions. The defrosting period of the sensible heat storage system was 6 ~ 8 min and indoor air temperature at the height of 1. 1 m ranged from 20. 5 to 22. 9 ℃ and 24. 9 to 29. 3 ℃ respectively. Experimental results and the calculated evaluation indexes depict that the sensible heat storage system is promising and suitable for floor radiant heating in Changsha and can achieve improved indoor thermal comfort and lower energy consumption compared with the VRV system.
出处
《建筑科学》
CSCD
北大核心
2016年第6期33-38,共6页
Building Science
基金
"十二"国家五科技支撑项目"太阳能集热源塔热泵空调一体化系统"(2011BAJ03B05-6)
关键词
户式空气源热泵
地板辐射供暖
显热蓄能
间歇运行
室内热舒适
预计平均热感觉指数
indoor air source heat pump
floor radiant heating
sensible thermal energy storage
intermittent operation
indoor thermal comfort
Predicted Mean Vote（PMV）
