摘要
提出一种可快速制热和除霜的蓄能型空气源热泵系统,并在室外温度约-0.7℃,相对湿度约95%的雨雪天气条件下进行实验测试,结果表明,结霜过程中蓄热器可有效阻止室内机出风温度的下降,除霜过程中新系统的压缩机出力大,效率高。除霜用时比常规除霜缩短68%,除霜能耗比常规除霜减少51.4%,除霜末期室内机出风温度为28℃,比常规系统高22℃,几乎没有吹冷风感;新系统开机快速制热效果十分显著,其6 min的制热量相当于常规开机制热10 min的制热量,新系统显著提高了空气源热泵的供热效果。
This paper presented an energy storage air source heat pump system which can heat and defrost quickly. The experimental test was carried out in the outdoor conditions of-0.7 ℃ and 95% relative humidity. The results show that in the process of frosting,the heat accumulator can effectively prevent the air temperature falling of the indoor unit. In the process of defrosting,the compressor of the new system has great output and high efficiency. When using the new system,defrosting duration was shortened by 68%,and defrosting energy consumption reduced by 51.4%. The indoor air temperature is 28 ℃ at the end of the defrosting,which is 22℃ higher than that of the conventional system,bringing about no cold feeling during the defrosting. The effect of the quick heating after turning on the unit is very considerable,the heating amount of 6 minutes for the new system is about equivalent to that of 10 minutes for conventional system. Therefore,the new system proposed greatly improves the heating effect of air source heat pumps.
作者
赵洪运
邱国栋
宇世鹏
Zhao Hongyun;Qiu Guodong;Yu Shipeng(School of Energy and Power Engineering,Northeast Electric Power University,Jilin 132012,China;Qingdao Economic&Technology Development Zone Haier Water-Heater Co.,Ltd.,Qingdao 266101,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第3期184-190,共7页
Acta Energiae Solaris Sinica
基金
吉林省科技厅重大科技招标专项(20160203007SF)
吉林市科技创新发展计划项目(201750221)
吉林省教育厅“十三五”科学技术研究项目(JJKH20180433KJ)。
关键词
空气源热泵
蓄能
除霜
制热
air source heat pumps
energy storage
defrosting
heating
