Thermal energy storage in the ground: Comparative analysis of heat transfer modeling using U-tubes and boreholes
Thermal energy storage in the ground: Comparative analysis of heat transfer modeling using U-tubes and boreholes
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DOI：
10.1016/0038-092x(96)00013-8
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发表时间：
1996-06
期刊：
影响因子：
6.7
通讯作者：
D. Breger;J. E. Hubbell;H. E. Hasnaoui;J. Sunderland
中科院分区：
文献类型：
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作者：
D. Breger;J. E. Hubbell;H. E. Hasnaoui;J. Sunderland
用于太阳能加热应用的大规模热能储存可以通过安装一系列垂直热交换钻孔或U形管在地下实现。存储子系统的仿真建模及其与整个系统的集成对于设计和性能评估至关重要。虽然U型管存储设计是特别有吸引力的粘土和更可取的钻孔在许多地质条件下，只有钻孔模拟模型是目前可用的，验证，并集成到一个系统的模拟模型。本文提出了一个比较分析的热传递从钻孔和U型管使用解析解，有限元建模，和可用的仿真模型。该分析用于支持一种方法的开发，通过该方法，可以通过适当指定钻孔存储模拟模型中的参数来对任何U形管配置的传热进行建模。然后，井眼模型可以用于对集成在总系统仿真模型内的存储子系统进行建模。
Large scale thermal energy storage for solar heating applications can be accomplished in the ground through the installation of an array of vertical heat exchange boreholes or U-tubes. Simulation modeling of the storage subsystem and its integration with the total system is essential for design and performance evaluation. Although U-tube storage design is especially attractive in clay soils and preferable to boreholes in many geological conditions, only a borehole simulation model is currently available, validated, and integrated into a system simulation model. This article presents a comparative analysis of the heat transfer from boreholes and U-tubes using analytical solutions, finite element modeling, and the available simulation model. The analysis is used to support the development of a methodology by which the heat transfer of any U-tube configuration can be modeled by appropriately specifying parameters in the borehole storage simulation model. The borehole model can then be used to model the storage subsystem integrated within a total system simulation model.