严寒地区PV/T-空气源热泵集成供热系统研究

PV/T-Air Source Heat Pump Integrated Heating System in Severe Cold Region

严寒地区太阳能光伏光热(PV/T)技术应用于空气源热泵供暖系统,能实现低温环境下空气源热泵高效制热,最大限度提高可再生能源利用率。研究分析了空气源热泵供暖系统在严寒地区使用的局限性和普遍存在的问题;根据太阳辐射传热机理和空气传热介质的特点,研制出PV/T-空气源热泵集成供热系统,空气源热泵机组即使在室外空气温度-20℃时,其理论COP值也能达到5.37,提高了严寒地区空气源热泵的制热效率,为今后严寒地区供暖模式提供了一种新的思路。

Photovoltaic-thermal （PV/T） technique is applied to air source heat pump （ASHP） heating system in severe cold region, which can achieve high efficient heating of ASHP in low temperature environment and maximize the utilization of renewable energy. The using limitations and common problems of ASHP heating system in severe cold region are studied. Based on the solar radiation heat transfer mechanism and characteristic of air-heat transfer media, PV/T-ASHP integrated heating system is developed. When the outdoor temperature is -20 ℃, theoretical COP value of ASHP unit still reach 5.37, which improves the heating efficiency of A SHP and provides a new idea for the heating mode in severe cold region in future.