供暖水温对低温空气源热泵制热性能影响的实验研究  

EXPERIMENTAL STUDY ON EFFECT OF HEATING WATER TEMPERATURE ON HEATING PERFORMANCE OF LOW-TEMPERATURE AIR SOURCE HEAT PUMP

作　　者：李露露 尹应德 刘世杰[1,3] 朱冬生 谭连元[5] Li Lulu;Yin Yingde;Liu Shijie;Zhu Dongsheng;Tan Lianyuan(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;University of Chinese Academy of Sciences,Beijing 100049,China;Harbin Air Conditioning Co.,Ltd.,Air Cooling System Research and Development Center,Harbin150000,China;Guilin University of Electronic Technology,School of Architecture and Transportation Engineering,Guilin 541004,China;Foshan Bulu Energy Saving Technology Co.,Ltd.,Foshan 528000,China)

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]中国科学院大学,北京100049 [3]哈尔滨空调股份有限公司国家能源局电站空冷系统研发中心,哈尔滨150000 [4]桂林电子科技大学建筑与交通工程学院,桂林541004 [5]佛山市步鹿节能科技有限公司,佛山528000

出　　处：《太阳能学报》2023年第4期377-383,共7页Acta Energiae Solaris Sinica

基　　金：佛山市高新区科技创新计划(2020197000618);桂林电子科技大学基金(UF21009Y);广东省企业科技特派员专项(GDKT2020012800,GDKTP2021047200);顺德区核心技术攻关项目(2130218003037);吉林省中科院合作专项(2022SYHZ0027);低碳能源与节能装备联合实验室项目。

摘　　要：为研究在低环境温度(-25℃)下不同供暖水温对低温空气源热泵(ASHP)的制热性能的影响,研制一种新型全尺寸双系统空气源热泵样机,该样机可用作工业化的商业产品,并采用液体载冷剂(LSR)法计算制热量。实验结果表明:在-25℃环境温度下,供暖水温从41~55℃时,样机的制热量由29.57 kW降至19.71 kW,降低了33.33%,消耗功率从19.20 kW增至23.36 kW,增长了21.69%,制热性能系数从1.54降至0.84,降低了45.45%。该研究可为空气源热泵在低温环境下的应用提供参考。To study the heating performance of a commercial ASHP with different water-supply temperatures at low ambient temperature,a novel full-scale dual-system ASHP prototype was developed.The liquid secondary refrigerant(LSR)method was used to calculate the heating capacity.The prototype can be used as a commercial product for industrialization.Experiment results show that at the ambient temperature of -25 ℃,with the hot-water-supply temperature varying from 41 to 55 ℃,the heating capacity of the prototype is reduced from 29.57 to 19.71 kW,with 33.33% reduction.The consumption power increases from 19.20 to 23.36 kW,with increasement of 21.69%.And the COP_h is reduced from 1.54 to 0.84 by 45.45%.This study can provide a beneficial reference for the application of commercial ASHP at the low temperature environment.

关 键 词：空气源热泵 低环境温度 性能系数 液体载冷剂法 

分 类 号：TK114[动力工程及工程热物理—热能工程]