地源热泵系统地下水热量运移阶段特性模拟研究  

Simulation study of the stage-characteristics of groundwater thermal transport in aquifer medium for GWHP System

作　　者：周彦章[1] 周志芳[2] 吴蓉[3] 黄勇[2] 

机构地区：[1]南京水利科学研究院岩土工程研究所,南京210024 [2]河海大学地球科学与工程学院,南京210098 [3]河海大学文天学院,马鞍山243031

出　　处：《水文地质工程地质》2011年第5期128-134,共7页Hydrogeology & Engineering Geology

基　　金：中央级公益性科研院所基本科研业务专项基金项目(Y311006);国家自然科学基金资助项目(51079043);安徽省高等学校省级自然科学研究项目(KJ2010A296)

摘　　要：含水介质中地下水热量运移过程模拟是地源热泵系统这类新型浅层地温能利用工程科学论证的重要内容。通过建立饱和含水介质中热量运移对流-弥散数学模型,模拟了拟建地源热泵系统理想的对井抽-灌运行特定水流及热源条件下地下水热量运移过程。结果表明热泵系统完整运行周期(一年)内地下水热量运移过程具有显著的"阶段性"特征,"夏、冬抽-灌输运"和"春、秋停运蓄存"两阶段取决于不同的作用因素。从数学和概念模型两方面讨论了地下水流作用对热量输运过程的决定性影响,说明不同时期抽、灌井互换运行是解决拟定工作模式下热(冷)能浪费问题的理想途径。Simulation of groundwater thermal transport process in an aquifer is one of the most important problems for the project demonstration of GWHP（Groundwater Heat Pump） system.By building the convection-dispersion model which described the groundwater thermal transport in the aquifer,this paper simulated the groundwater thermal transport process of a GWHP system under special groundwater-flow and heat source conditions.The results show that the features of groundwater thermal transport in the whole running cycle（1 year） of GWHP system presented stage-characteristics obviously,and the thermal transport process in the two stages,as pumping-recharging running stage of summer/winter and storing stage of autumn/spring in the next year,was determined by different factors.Based on the hydrogeologic conceptual and numerical models,the influence of groundwater-flow on the thermal transport in the aquifer was discussed.The running mode of pumping and injecting well exchanging is the suitable method to resolve the problem of heat or cold energy wasting of planed running mode in different running periods of GWHP system.

关 键 词：地源热泵系统 地下水热量运移 地下水流作用 

分 类 号：G641.2[文化科学—高等教育学] TK529[文化科学—教育学]