摘要
热泵热水器作为一种高效节能的系统,目前已走进千家万户。回收室内排风能量可以有效改善热泵热水器的性能,提出采用热泵热水器将卫生间排风能量进行回收用于提供热水,将冷凝器的形式做改进设计,改传统的微通道式为变直径沉浸式盘管换热器,使水箱有更好的换热效果。并与其他系统进行了对比,结果显示,热泵热水器在环境温度为20℃-25℃时表现较优,在全年供暖期间平均COP增加了37%,与电热水器、燃气热水器比较也有明显的节能效果,全年电费减少大约662.58元。
As a high-efficiency and energy-saving system,heat pump water heaters have now entered thousands of households.Recovering indoor exhaust air energy can effectively improve the performance of heat pump water heaters.This paper proposes to use heat pump water heaters to recover bathroom exhaust air energy to provide hot water,and to improve the design of the condenser,change the traditional microchannel type to variable diameter immersed coil heat exchanger,in order to make the water tank have a better heat exchange effect.I also searched for a heat pump system similar to the designed system and placed it in the bathroom for simulation experiments.The average COP increased by 37%during the annual heating period.Compared with electric water heaters and gas water heaters,it also has obvious energy-saving effects.The annual electricity bill is reduced by approximately 662.58 yuan.
作者
魏晨希
马国远
刘帅领
许树学
Wei Chenxi;Ma Guoyuan;Liu Shuailing;Xu Shuxue(Beijing University of Technology,Beijing,100124)
出处
《制冷与空调（四川）》
2022年第4期637-642,660,共7页
Refrigeration and Air Conditioning
关键词
余热回收
热泵热水器
COP
waste heat recovery
heat pump water heater
COP
