Study On Heat Transfer Performance Of Seepage Water Source In Seawater Source Heat Pump

The Bohai Sea has a lower surface temperature compared with the air.The sea has a low temperature in winter and sea freezes for a short period.The coastal water quality is bad.Taking the above reasons into consideration,the coastal areas might not be a suitable sink or heat source for heat pump system.Seawater source heat pump using beachwell infiltration intake technology is a heat pump system which comprehensively makes use of ocean thermal energy and soil thermal energy and helps to solve the problems mentioned above.Firstly,use the similarity principle to compute simulation of porous media seepage similar conditions of the heat transfer experiment.Then using simulation software,such as Fluent,to verify the derived similar conditions.Secondly,using the similarity principle to establish percolation water system test bench in the lab,for pumping and pausing water experiment,observed thr changing rules of the soil and the water temperature.Through reasonable assumptions and combining with the common groundwater seepage and heat transfer model,the mathematical model of Beachwell infiltration intake systems is established,including the governing equations and its single valued conditions.Fluent,a software used for solving the equations,is introduced.Finally,the verified beachwell infiltration intake seepage and heat transfer model of bounded aquifer is used.Taking practical engineering hydrogeological conditions into account,how locations and diameters of coastal wells and drawdown influence the well water yield are simulated and studied,and further how seawater temperature,pumping time,well water yield and well structure parameters influence the water temperature in the outlet are simulated and researched.