寒冷地区低温空气源热泵辐射供暖实验研究  

Experimental Study on Radiation Heating of Low Temperature Air Source Heat Pump in Cold Areas

作　　者：王林军[1,2] 刘伟[1,2] 张东[2] 高章维 门静[1,2] 

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730050 [2]兰州理工大学西部能源与环境研究中心,甘肃兰州730050

出　　处：《甘肃科学学报》2016年第1期77-82,共6页Journal of Gansu Sciences

基　　金：国家自然科学基金项目(51166008);甘肃省建筑科技攻关项目(JK2014-48);兰州理工大学红柳青年教师培养计划(Q201410)

摘　　要：为了解决常规空气源热泵在寒冷地区应用系统性能低的普遍问题,在兰州地区建立了一套喷气增焓空气源热泵低温地板辐射供暖系统,开展冬季供暖实验研究,并且进行了供暖性能分析。结果表明：空气源热泵供暖系统在寒冷条件下能稳定输出热能,室内温度保持在14～20℃,系统能够满足冬季供暖的需求;在环境温度为-12.9℃时,综合考虑水泵及风机耗功,系统COP大于1.85,但供暖最低温度未达到Ⅱ级热舒适要求,设定较低供暖温度下限有利于系统节能;COP、地暖工作时间与环境温度密切相关;该空气源热泵低温地板辐射供暖系统在兰州等寒冷地区应用具有良好的节能效果,尤其是在未提供集中供暖的农村地区具有一定的可行性。In order to solve the common problem that conventional air source heat pump has a low application system performance in cold areas,an enhanced vapor injection air source heat pump low temperature floor radiation heating system was set up in Lanzhou to carry out a winter heating experimental study,and a heating performance analysis was also conducted.The results showed that：air source heat pump heating system can stably output heat energy in cold conditions,with the indoor temperature at 14～20 ℃,that is,the system can meet the heating demand in winter;in case of a-12.9℃ambient temperature,comprehensively considering the pump and fan power consumption,the system COP is greater than 1.85,but the lowest heating temperature does not reach the II level thermal comfort requirements,so to set a lower heating temperature limit is conducive to energy conservation;COP and working time of floor heating are closely related to ambient temperature;the air source heat pump low temperature floor radiation heating system has good energy saving effect in Lanzhou and other cold areas,especially for the rural areas where central heating is not provided,its application has certain feasibility.

关 键 词：寒冷地区 空气源热泵 供暖 系统COP 

分 类 号：TB69[一般工业技术—制冷工程]