Energy performance and thermal impact of a Borehole Heat Exchanger in a sandy aquifer: Influence of the groundwater velocity

被引：110
作者：
Angelotti, A. [1 ]
Alberti, L. [2 ]
La Licata, I. [2 ]
Antelmi, M. [2 ]
机构：
[1] Politecn Milan, Dipartimento Energia, Milan, Italy
[2] Politecn Milan, DICA, Milan, Italy
来源：
ENERGY CONVERSION AND MANAGEMENT | 2014年 / 77卷
关键词：
Ground-Source Heat Pump; Borehole Heat Exchanger; Groundwater flow; Energy performance; Thermal impact; Numerical methods; GEOTHERMAL SYSTEMS; TRANSPORT; ADVECTION; FLOW;
D O I：
10.1016/j.enconman.2013.10.018
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In a saturated soil, the groundwater flow affects both the energy performance and the thermal impact on the surrounding soil of Borehole Heat Exchangers linked to Ground-Source Heat Pumps. In this paper a numerical model in MODFLOW/MT3DMS of a single U-pipe in a sandy aquifer is proposed in order to investigate the two issues in a coupled approach. After validating the model, the typical yearly operation of a Borehole Heat Exchanger extracting and injecting heat into the ground is simulated. For 0.1 <= Pe <= 1 cold and warm plumes develop and the heat rate increases non linearly from 11% to 105%. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：700 / 708
页数：9
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