Heat Transferring In Buried Pipes Of Ground Source Heat Pump And Its Implement For Engineering

How to reduce energy exhaustion and protecting the environment has become acommon topic among countries all over the world.Recently,with the far-developingsociety,building consumption ratio is climbing in an high speed.Thus,finding some goodways to reduce building exhaustion is of great significance.As a tidy and effectivesystem,air-conditioner is increasingly accepted by many people and widely implied insome area.Based on a GSHP(Ground Source Heat Pump) engineering segment of Jin Hao Co.inFuXin, firstly tested the thermal performance of the soil here,resulting that,in Fu Xinarea,the initial temperature is13.1℃and the thermal conductivity is1.71W/(m K).The gambit is used to establish a heat transfer model with actual size and the Fluent tocalculate, results were accomplished：(1)In winter,temperature at the inlet and outlet haschanged a lot along normal direction,and that the nearer towards the pipes, the moresignificantly the temperature changed along the radial direction.(2)The value ofvelocity in pipes、well depth and the thermal conductivity of the filler should not alwaysbe large because it is not“the large,the better”.It should be seclected according to localenvironment.Then, analyses dynamic load is calculated for the length of pipes in thisprocject,thus, the absorption of heat is much higher in winter,thus,if the system is justlike that,the temperature in soil will become lower and lower,which may make damageto the environment due to bad work of heat pump system.Solar-ground source heatpump combined system is designed to deal with this problem.Through comparing singleGSHP with this recycling system, we come to the conclusion that the cost of this newsystem is much lower and can be promoted in a large scale.