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介绍了一种新型的太阳能-空气源热泵直接地板辐射采暖系统,把空气源热泵、太阳能系统和直接地板辐射采暖结合起来,在充分利用太阳能的同时,保证供暖系统的高效稳定运行。在甘肃兰州地区搭建采暖实验房进行实验研究,对实验结果分析表明,系统在晴天、阴天和雪天三种典型天气状况下运行的平均COP分别为3.4、2.6、3.1。室外温度8℃时达到最大COP值4.2,系统稳定运行后,室内温度在20℃左右轻微波动,满足冬季室内供暖需求和舒适性要求。
A new solar - air source heat pump direct floor radiant heating system is introduced. The air source heat pump, solar system and direct floor radiant heating are combined to make full use of solar energy while ensuring efficient and stable operation of the heating system. The heating laboratory building was set up in Lanzhou, Gansu for experimental study. The experimental results show that the average COP of the system operating under three typical weather conditions of sunny day, cloudy day and snow day are respectively 3.4, 2.6, 3.1. The outdoor temperature of 8 ℃ reached the maximum COP value of 4.2, the system is stable operation, the indoor temperature fluctuates slightly around 20 ℃, to meet the winter indoor heating needs and comfort requirements.