制冷学报2024，Vol.45Issue(5)：123-129,144,8.DOI:10.12465/j.issn.0253-4339.2024.05.123
带气液调配蒸发器空气源热泵热水器的实验研究
Experimental Study on Air-source Heat Pump Water Heater with Vapor-liquid Adjustment Evaporator
摘要
Abstract
A vapor-liquid adjustment evaporator exhibits superior heat transfer performance by adjusting vapor quality and mass flux.In this study,two vapor-liquid adjustment evaporators with circuitries of 4-2-4-6-4(evaporator 1)and 5-4-3-4-4-4(evaporator 2)are applied to heat pump water heaters(respectively referred to as systems A and B),and an experimental comparative study is conducted.The results show that compared with that in evaporator 1,the refrigerant is more uniformly distributed in evaporator 2,and its pressure drop is reduced by 10.91%.Under nominal working conditions,the heating capacity and power consumption of system B are reduced by 1.69%and 1.45%,respectively,compared to system A;the coefficients of performance(COPs)of the two systems are generally the same.The pressure at the compressor outlet of system B is 26.35-84.78 kPa lower than that of system A;this range is conducive to the safe operation of the compressor.At different ambient temperatures,the power consumption of the compressor of system B is lower than that of system A.When the ambient temperature is 30℃,the COP of system B is 2.1%higher than that of system A.关键词
空气源热泵热水器/蒸发器管程布置/压降/制冷剂分配Key words
air-source heat pump water heater/evaporator circuit design/pressure drop/refrigerant distribution分类
通用工业技术引用本文复制引用
温学诚,陈健勇,陈颖,罗向龙,梁颖宗,何嘉城,杨智..带气液调配蒸发器空气源热泵热水器的实验研究[J].制冷学报,2024,45(5):123-129,144,8.基金项目
本文受广东省基础与应用基础研究基金自然科学基金(2022A1515012035)项目资助.The project was supported by the Guangdong Basic and Applied Basic Research Foundation(No.2022A1515012035). （2022A1515012035）
