摘要
本文以1栋上海地区独栋住宅为对象,对土壤源热泵系统冬季供暖性能和能效进行了实证研究。通过对系统运行参数的连续监测,实证了地埋管换热器每米埋管取热量、机组与系统的COP及系统节能率等指标。结果表明:地埋管换热器出水温度及循环温差较为稳定,埋管换热量为27～32 W/m;系统能效受部分负荷率影响较大,整个测试期系统COP在3.3～3.9之间;在满足同等舒适性条件下,土壤源热泵系统比空气源热泵节能31.0%,节能效果明显。
In this paper, the monitoring on the operating parameters of heating of ground source heat pump system in single family houses in winter in Shanghai was carried out, and such indicators as heat absorption per meter of huffed pipe of ground heat exchanger, performance coefficient COP of units and systems and system energy-saving rate were analyzed. The results shown that outlet water temperature of ground heat exchanger and heat transfer temperature difference were relatively stable, and heat absorption per meter of buffed pipe was 27 ~ 32 W/m,system performance coefficient COP was greatly influenced by partial lead rate, and COP fell within the range of 3.3 - 3.9 during the whole testing period. To achieve comfort,the energy that ground-source heat pump saved was 31.0% higher than that of air-source heat pump,therefore the energy-saving effect was rather apparent.
出处
《建筑科学》
北大核心
2013年第6期44-47,72,共5页
Building Science
基金
中美清洁能源联合研究中心建筑节能合作项目"新能源及可再生能源建筑应用技术的适应性研究和示范"(2010DFA72740-05)
关键词
土壤源热泵
每米埋管取热量
性能系数
部分负荷率
节能
ground-source heat pump, heat absorption per meter of buffed pipe, COP, partial load rate,energy conservation
