Abstract
The long-term stable operation of soil source heat pump system depends on the recovery characteristics of soil temperature field. Using DEST-h model of Hefei a high-rise residential buildings and FLUENT software to simulate software of soil source heat pump are analyzed through the summer and autumn season recovery after the change of soil temperature field around the buried pipe. It is pointed out that the intermittent operation of the compensation tower soil-coupled heat pump is beneficial to promote the recovery of soil temperature field. It has certain engineering application value for the improvement of soil source heat pump performance in hot summer and cold winter area.
Highlights
The soil source heat pump system is an energy efficient and environmentally friendly energy utilization device that utilizes shallow geothermal energy (Figure 1).Studies have shown that even if the underground thermostatic belt in the area only rises by 0.5°C per year, the soil-source heat pump system will not work effectively after 10 years [1,2]
Ensuring the underground heat balance is the key to the good operation of the soil source heat pump system [3,4]
Some scholars have indicated that using proper joint operation of the cooling tower and the buried tube heat exchanger, the size of the buried heat exchanger and the construction cost can be reduced, the soil source heat pump can be intermittently operated, which is beneficial to the underground
Summary
The soil source heat pump system is an energy efficient and environmentally friendly energy utilization device that utilizes shallow geothermal energy (Figure 1). Studies have shown that even if the underground thermostatic belt in the area only rises by 0.5°C per year, the soil-source heat pump system will not work effectively after 10 years [1,2]. Ensuring the underground heat balance is the key to the good operation of the soil source heat pump system [3,4]. The recovery of soil temperature around the buried heat exchanger improves the operating efficiency of the soil source heat pump [5,6,7,8,9,10]
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