| Theoretical and Experimental Study on Ground Coupled Heat Pump with Vertical Spiral Coil |
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| 作者姓名： | 李新国 周倩 赵军 朱强 胡璟 |
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| 作者单位： | School of Mechanical Engineering，Tianjin University，School of Mechanical Engineering，Tianjin University，School of Mechanical Engineering，Tianjin University，School of Mechanical Engineering，Tianjin University，School of Mechanical Engineering，Tianjin University Tianjin 3 00072，China，Tianjin 3 00072，China，Tianjin 3 00072，China，Tianjin 3 00072，China，Tianjin 3 00072，China |
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| 摘 要： | Groundcoupledheatpump (GCHP)isalsoclassi callycalledthegroundsourceheatpump ,ortheearthcoupledheat pump ,orthegeothermalheat pump ,thoughtheydonotreallyutilizegeothermalenergyintheclassicalsense .Insteadofhavingitsoutsidecoilsexchangeheatwithair ,itexchangesheatwiththeearthviagroundloopheatexchanger .Itdoesnotutilizegroundwaternordoesitneedreinjectionwellsoranyprotectionagainsterosion ,sotheycanavoidextensiveuseofgroundwaterandtheearthsubsidence .Withnopollutionofwasteheat ,smoke ,andwater,i…
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Theoretical and Experimental Study on Ground Coupled Heat Pump with Vertical Spiral Coil |
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| LI Xin guo,ZHOU Qian,ZHAO Jun ZHU Qiang,HU Jing.Theoretical and Experimental Study on Ground Coupled Heat Pump with Vertical Spiral Coil[J].Transactions of Tianjin University,2003,9(2). |
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| Authors: | LI Xin guo ZHOU Qian ZHAO Jun ZHU Qiang HU Jing |
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| Abstract: | The numeric al simulation study on the temperature distribution of underground field for the ground coupled heat pump (GCHP) with vertical spira l coil was carried out by using finite element. The distribution and recovery of undergroun d field temperature under different operation ratio and the optimal operation ratio were simulated.The performance parameters, i.e. inlet and outlet temperature of the ground spiral coil in heating and cooling modes were tested, the heat extracted or emitted by the heat pump to the ground was calculated, and the coefficients of performance (COP) of GCHP at heat ing and cooling modes were analyzed. |
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| Keywords: | ground coupled heat pump (GCHP) vert ic al spiral coil underground temperature distribution optimal operation ratio |
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