太阳能-土壤源热泵系统联合供暖运行模式的探讨

针对青岛地区的气候条件，对太阳能一土壤源热泵系统（SESHPS）有、无蓄热水箱时各联合供暖运行模式进行了数值模拟。结果表明，与土壤源热泵相比，联合供暖运行模式具有明显的节能效果，有、无蓄热水箱时的节能率分别为14．5％和10．4％；有蓄热水箱时的联合供暖运行模式二（集热器与埋管串联运行，载热流体先经过埋管后进入集热器）的效果最佳。对SESHPS联合供暖运行模式的优化结果表明，可按能量比例63％与37％或尺寸比例13．8m／m^2来设计埋管长度与集热器面积。

Combined heating mode of solar-earth source heat pump systems

Numerically simulates the combined heating modes of SESHPS with and without heat storage water tank in Qingdao climate. The result shows that comparing with ground source heat pump, the energy saving rate with and without heat storage water tank is 14.5% and 10. 4% respectively. The operation mode with water tank in which the hot water flows through the solar collector first and then the buried coil is preferable. The length of buried coil and the area of solar collector can be calculated either by the energy ratio of 63% to 37% or by the size ratio of 13.8 m to 1 m^2 according to the optimizing results.