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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 77, 2020 - Issue 5
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Original Articles

A simplified semi-numerical model to simulate a U-pipe ground heat exchanger

Changlong WangSchool of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, P.R. China; Correspondence[email protected]
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,
Zhijia HuangSchool of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, P.R. China; View further author information
,
Yuehong LuSchool of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, P.R. China; ;Department of Electronic, Electrical and Systems Engineering, University of Birmingham, West Midlands, UKView further author information
,
Xinjie HuangSchool of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, P.R. China; View further author information
&
Han FangSchool of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, P.R. China; View further author information
Pages 482-496 | Received 01 Nov 2019, Accepted 26 Dec 2019, Published online: 23 Jan 2020
 
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Abstract

A simplified semi-numerical model is developed to simulate a U-pipe ground heat exchanger (GHE), including a 2-D numerical model to simulate the radial and axial heat transfer in the borehole and an infinite cylindrical-source model to analyze the radial heat transfer in the soil. The proposed model is verified by comparing the calculated results with experimental data, simulation data, and the results of other models. The temperature distributions of the borehole and the soil calculated by the proposed model match well with experimental data and simulation data. The proposed model is demonstrated to have an accurate calculation of temperature distributions compared with other models.

Additional information

Funding

This work was supported by Anhui Provincial Natural Science Foundation (Grant No. 1808085QE178), the National Natural Science Foundation of China (Grant Nos. 51478001 and 51608001), and the Natural Science Foundation of the Education Bureau of Anhui Province of China (Grant No. KJ2019ZD08).

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