摘要
对寒冷地区某住宅中应用的空气源热泵地板辐射供暖系统进行了供暖季性能测试。空气源热泵与室内供暖末端地板通过室内换热器相连接,室内循环热水与热泵制冷剂通过室内换热器进行换热供暖。对室内外温湿度、机组供回水温度、循环水流量、房间围护结构表面温度等参数进行测试。系统采用35℃出水温度控制,机组冷凝温度基本在36℃左右,测试房间的平均温度均达到20℃及以上。供暖季平均室外温度3℃,系统的能效比平均为3.67,机组COP为4.14,较低的冷凝温度有助于提高系统的运行性能。
In this study,field tests were conducted for an air-source heat pump floor radiation heating system used in a residential building of a cold region during the heating season.The air source heat pump is connected with the floor of the end of the indoor heating through the indoor heat exchanger,and the indoor circulating hot water and the heat pump refrigerant are heated through the indoor heat exchanger.The outdoor and indoor air temperature and relative humidity,supply and return water temperatures,circulating water flow,and surface temperature of the envelope of rooms were measured.The supply water temperature of the system was set at 35℃.The measured condensation temperature was kept at approximately 36℃.The mean indoor temperature of tested rooms was 20℃or higher.The average outdoor temperature was 3℃.The mean energy efficiency of the heating system was 3.67 and the COP of the heat pump was 4.14.The low condensation temperature was beneficial to improve the system performance.
作者
李建凯
庄绪成
王海英
张峰鸣
徐秋生
胡松涛
LI Jiankai;ZHUANG Xucheng;WANG Haiying;ZHANG Fengming;XU Qiusheng;HU Songtao(Department of municipal and environmental engineering,Qingdao University of Technology,Qingdao 266555,Shandong,China;Qingdao Hisense Hitachi Air-Conditioning Systems Co.,Ltd.,Qingdao 266071,Shandong,China)
出处
《建筑科学》
CSCD
北大核心
2023年第10期105-112,共8页
Building Science
基金
山东省自然科学基金项目“基于操作温度的室内热环境控制及节能理论研究”(ZR2022ME035)。
关键词
寒冷地区
空气源热泵
地板辐射供暖
系统运行特性
cold region
air-source heat pump
floor radiation heating
system performance character
