石家庄地区地源热泵与太阳能复合空调系统的应用研究

Application Research of the Hybrid Solar Thermal and Ground Source Heat Pump System in Shijiazhuang

针对我国北方地区地源热泵空调系统普遍存在的热平衡失调问题,设计了一款地源热泵与太阳能复合空气调节系统,并于2010年在石家庄市的老年公寓工程改造中应用。结果表明该系统效果良好,改造后比改造前地埋管换热器初始出水温度提高6℃;最低出水温度提高5℃;地源热泵机组能效比由1.67提高到3.82;冬季运行费用由20元/m2降低至11元/m2;该工程冬季总运行费用由5万元降低至2.75万元。该实例证明该系统结合了地源热泵和太阳能的各自优点,在石家庄地区应用效果明显,并且用于太阳能系统的初投资4.5万元一年后已收回成本,有推广应用的价值。

Aiming at heat balance problem in Northern region, a hybrid solar thermal and ground source heat pump systetla was designed, and it was applied in rebuilding of elderly apartments in Shijiazhuang City in 2010. The results showed that the application of this system received a good effect. The initial outlet temperature improved 6℃, the lowest outlet temperature improved 5 ℃ ; the energy efficiency ratio of ground source heat pump improved from 1.67 to 3.82 ; operation fee in winter decreased from 20 to 11 Yuan/m2 , the total fee in winter decreased from 50 to 27.5 thousands Yuan. The example demonstrated that the system combined advantages of ground source heat pump and solar ener- ~~, had extensive application value.