新型四换热器流程太阳能辅助多功能热泵实验研究

Experimental Research on a Novel Solar-assisted Multifunctional Heat Pump System with Four Heat Exchangers

本文提出了一种新型四换热器流程太阳能辅助多功能热泵,不但具有家用冷暖空调、热泵热水器和太阳能热水器这三种家用节能产品所包含的制冷、制热和制热水功能,而且具有制冷兼制热水、太阳能辅助制热、太阳能辅助制热水、热水除霜等四种更加节能的新运行模式来实现这三项功能。在自行搭建的实验装置上成功地实现了七种热泵运行模式之间的平稳过渡和高效实现。太阳能辅助制热和太阳能辅助制热水模式的实验结果表明,该新型太阳能辅助多功能热泵可以利用太阳能来实现较高的室内制热效率和制热水效率。不但大幅提高了设备的利用率,而且可以更好地适应不同季节的气候条件,起到显著的节能效果。

This paper proposed a novel solar-assisted multifunctional heat pump system with four heat exchangers.It possessed not only the functions of space cooling,space heating and hot water production included in domestic air-conditioner,heat pump water heater and solar water heater,but also four more energy saving operation modes including space cooling with hot water production,solar-assisted heating,solar-assisted hot water production and defrosting by hot water to realize the three functions.The transitions between seven operation modes have been realized successfully and efficiently on the established experimental setup.The experimental results of the solar-assisted heating and solar-assisted hot water production show that the novel solar-assisted multifunctional heat pump system can realize space heating and hot water production with high efficiency by utilizing solar energy.It can not only take full advantages of the domestic appliances,but also adapt to different climate conditions in different seasons with the obvious energy saving feather.