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As the distance between production well and injection well, distribution of wells and operation model of water resource heat-pump system play a significant impact on system efficiency. The paper makes a research on changes in water flow field and temperature field around production and injection wells. Taking a Shenyang residential area; a water-source heat-pump system as example, the paper does the research on the basis of coupling model and analyzes the variation characteristics of the research objects with the help of Flow Heat software when the inter-well distance are20m、30m、40m、50m、60m、70min the winter. The result shows that a longer distance will take longer time for thermal transfixion which in a slighter degree. Therefore, the conclusion is the optimum distance between water-source heat-pump production well and injection well should be 30m.

Pumping and injection well spacing of Water Heat Pump on the influence of the groundwater flow field and temperature field analysis