高温制冷工况下蓄能空调系统性能研究  

Performance Study on a Thermal Storage Air-conditioning System under Hightemperature Cooling Conditions

作　　者：崔四齐[1] 谷可轩 白静[1] 李程 李慧鑫 和思源 王乐健 关斯泽 CUI Siqi;GU Kexuan;BAI Jing;LI Cheng;LI Huixin;HE Siyuan;WANG Lejian;GUAN Size(School of Energy&Environment,Zhongyuan University of Technology,Zhengzhou 450007,Henan,China)

机构地区：[1]中原工学院能源与环境学院,河南郑州450007

出　　处：《建筑科学》2025年第2期246-251,259,共7页Building Science

基　　金：国家自然科学基金项目“基于蓄冷调控的太阳能喷射-压缩复合制冷系统构建及动态特性研究”(52076219);河南省科技攻关项目“蓄冷型空气源热泵机组关键技术研究与产品开发”(202102310556)。

摘　　要：针对常规空调系统在夏季高温工况下易出现压缩机排气压力及排气温度过高、空调性能降低、制冷量不足等问题,提出并设计了1种具有蒸发-蓄冷和释冷-过冷功能的蓄能空调系统,系统采用双进双出型壳盘管式换热器作为蓄能器,选用固-液相变温度28℃的石蜡作为蓄能材料、R32作为系统循环制冷剂,并对系统的性能进行了实验研究。结果表明:与常规空调系统相比,在室外46℃的高温工况下,蓄能空调系统在释冷模式下的制冷量、制冷性能系数(Energy Efficiency Ratio,EER)分别提高了23.3%和52.2%,且压缩机排气温度降低9.0%。研究成果为蓄冷空调的匹配设计提供一定的参考。To tackle issues like high compressor discharge pressure and temperature,reduced performance,and inadequate cooling in conventional air-conditioning systems during hot summer conditions,this study proposed and designed a thermal storage air conditioning system featuring evaporation-cold storage and cold release-subcooling functions.The system adopts the double-inlet and double-outlet shell-and-coil heat exchanger as an accumulator,the selection of the solid-liquid phase transition temperature of 28℃of the paraffin wax as a storage material,and R32 as the system circulating refrigerant,the performance of which was studied experimentally.The results showed that compared with the conventional air conditioning system,the cooling capacity and the Energy Efficiency Ratio(EER)of the thermal storage air conditioning system in the cold release mode were increased by 23.3%and 52.2%respectively,and the compressor discharge temperature was reduced by 9.0%under the high-temperature condition of 46℃outdoors.The research findings can provide certain reference for the matching design of thermal storage air conditioners.

关 键 词：蓄能 空调 高温 制冷 性能 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]