(1) the traditional air conditioning system either water or air, due to its heat exchanger must be placed on exposure to air, so will the architectural modeling creating a bad influence, destroy the appearance of a building; and the heat exchanger of ground source heat pump buried underground, and away from the main building, it will not affect its modeling.

(2) the ordinary air conditioning of the impact on the environment is very serious, it not only caused serious damage to the ozone layer and produce intolerable noise, but also because the waste heat is discharged into the atmosphere in summer, winter atmospheric absorption heat and air, so that the surrounding residential environment is more harsh; the ground source heat pump can use the earth 's heat storage ability, the summer extra into the earth heat in winter to take, the winter excess cold in summer to take, in order to achieve the two seasons of winter and summer indoor heating and refrigeration. At the same time the running almost no emissions and waste not only, and no influence on air, but also make the earth not too cold and hot.

(3) the air cooled heat exchanger and water cooling heat exchanger for atmospheric environment, it is inevitably affected by environmental conditions change, will significantly reduce the efficiency of the heat exchanger; and the ground source heat pump heat exchanger is and earth heat transfer, heat transfer object is1m below the ground, its initial temperature is approximately equal to the mean annual temperature, without outside environmental impact. The temperature characteristics of the ground source heat pump air conditioning operation efficiency will be higher than the traditional40% to60%.

Economic aspects

(1) effects of ground source heat pump using economy of many factors, such as the national energy policy, environmental policy, electricity and fuel prices, building environment, users and climate conditions. According to the present situation in China, as a result of these factors which lead to the running cost remains to be further studied, difficult to obtain accurate results, but can learn from the experience of developed countries such as the United States, the world environmental protection organizations in a conditioning future report concluded: design and installation of the ground source heat pump, can save 30% ~40% or even higher heating refrigeration and air conditioning integrated operation cost.

(2) due to the advantage of technical respect, can save running costs of 40% ~ 60%.

(3) ground source heat pump system can also set heating, air conditioning and refrigeration and provide living hot water in a body. A heat pump system can replace the original heating boilers, refrigeration and air-conditioning and living hot water heating three sets of devices or systems, thereby also increasing the economy. It can be concluded: ground source heat pump system although the outdoor part is more complex, the initial investment is higher than