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热弥散对同井回灌地下水源热泵的影响
引用本文:倪龙,马最良.热弥散对同井回灌地下水源热泵的影响[J].建筑热能通风空调,2005,24(4):7-10,18.
作者姓名:倪龙  马最良
作者单位:哈尔滨工业大学市政环境工程学院
摘    要:综述了多孔介质和含水层蓄能中常用的热弥散模型,把热弥散模型归结为两类:速度一次方模型和含水层滞止导热系数倍数模型。对同井回灌地下水源热泵(GWHPPRSW)引起的地下水的换热,针对这两类模型进行了数值求解。随着热弥散的加强,抽水温度降加大。含水层中某些地方,温度降随着热弥散的增加而减小,且变化幅值较大。含水层热影响范围随着热弥散的加强而加大。速度一次方模型的计算结果较含水层滞止导热系数倍数模型的计算结果的抽水温度降大,热影响范围小。

关 键 词:地下水源热泵  同井回灌  热弥散  抽水温度  回灌  弥散模型  导热系数  影响范围  计算结果  含水层
文章编号:1003-0344(2005)04-007-5
收稿时间:2004-11-23
修稿时间:2004-11-23

The Effect of Heat Dispersion on Groundwater Heat Pump with Pumping & Recharging in the Same Well
Ni Long,Ma Zuiliang.The Effect of Heat Dispersion on Groundwater Heat Pump with Pumping & Recharging in the Same Well[J].Building Energy & Environment,2005,24(4):7-10,18.
Authors:Ni Long  Ma Zuiliang
Abstract:Accustomed models of thermal dispersion used in porous medium and Aquifer Thermal Energy Storage (ATES) were summarized. The thermal dispersion models can be summed up to two types, one is one power of velocity and the other is multiple of aquifer thermal conductivity. Groundwater heat transfer caused by Ground Water Heat Pump with Pumping & Recharging in the Same Well (GWHPPRSW) was simulated aimed at the two models. The drop of pumping temperature is increased with thermal dispersion intensifying. The temperature drop of certain places in aquifer is decreased with thermal dispersion intensifying, and the decrement is great. The Thermal Effective Radius (TER) of aquifer is increased with thermal dispersion intensifying. Compared with results of aquifer-thermal-conductivity's-multiple model, results of velocity's-one-power model show that the drop of pumping temperature is greater and TER is smaller.
Keywords:groundwater heat pump  pumping & recharging in the same well  thermal dispersion  pumping temperature
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