不同相变蓄能器对多联机空气源热泵蓄能除霜性能影响  

DEFROSTING PERFORMANCE OF MULTI-SPLIT AIR SOURCE HEAT PUMP USING DIFFERENT PHASE CHANGE MATERIAL-HEAT EXCHANGER

作　　者：董建锴[1] 张龙[1] 姜益强[1] 田浩[2] 田禹[1] 胡文举[3] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [2]中南建筑设计院股份有限公司,武汉430071 [3]北京建筑大学供热供燃气通风及空调工程北京市重点实验室,北京100044

出　　处：《太阳能学报》2016年第9期2332-2337,共6页Acta Energiae Solaris Sinica

基　　金：供热供燃通风及空调工程北京市重点实验室研究基金(NR2013K03);国家科技支撑计划(2011BAJ05B04)

摘　　要：以多联机空气源热泵相变蓄能除霜系统为研究对象,采用实验研究的方法分别对采用翅片管型和螺旋盘管型相变蓄能器的多联机空气源热泵系统的除霜性能进行实验研究。研究结果表明,室内机全负荷状态下,相变蓄能器在供热过程中蓄热,螺旋盘管型蓄能器与翅片型蓄能器完成蓄热分别需要6.00和33.00 min。从整个供热周期来看,翅片型蓄能器对供热过程的影响更小,蓄热过程会引起室内平均进出风温差降低4℃、平均供热量降低6 k W,系统结霜时间缩短8 min。To improve the defrosting performance of multi-split air source heat pump, phase change material was used to provide sufficient defrosting energy. Two different phase change material-heat exchanger （PCM-HE）, fin-tube type and spiral coil type, were respectively designed and added in the multi-split air source heat pump to improve defrosting performances. The defrosting performances using these two PCM-HEs were measured in the simulated indoor and outdoor environments. The experimental results indicated that the defrosting duration were respectively reduced by 1/3 and more than 1/2 when using the spiral coil type and fin-tube type PCM-HE. Furthermore, suction pressure and temperature could be effectively increased when using fin-tube type PCM-HE, and thus defrosting duration and energy were also decreased

关 键 词：多联机空气源热泵 相变蓄能器 除霜性能 实验研究 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]