In this paper, a novel heat and mass transfer model was used to simulate the temperature field of both the U-tube heat exchanger and soil around it. Beside two-dimensional N-S equations were solved to consider the seepage of groundwater, an energy equation coupling thermal conduction and groundwater advection was enclosed in the model as well. The energy equation was built according to the real conditions of the U-tube and seepage flow in the soil. Through analyzing the simulation results, the effects of groundwater seepage to the heat transfer process and thermal short-circuiting among U-tube legs are obtained. The influences of soil type, soil physical aspects and backfill on the soil temperature field around the single U-tube of an underground heat exchanger were studied at the same time. The conclusions had great academic significance to the analysis and designing of the underground heat exchanger.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4943-9
PROCEEDINGS PAPER
Analysis of Influences of Soil Characteristics on the Underground Heat Exchanger With a Novel Heat and Mass Transfer Model
Sufen Li,
Sufen Li
Dalian University of Technology, Dalian, China
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Haijun Li,
Haijun Li
Dalian Maritime University, Dalian, China
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Jinxiang Wang,
Jinxiang Wang
Dalian University of Technology, Dalian, China
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Yan Shang,
Yan Shang
Dalian University of Technology, Dalian, China
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Lanhua Dai,
Lanhua Dai
Dalian University of Technology, Dalian, China
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Ming Dong
Ming Dong
Dalian University of Technology, Dalian, China
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Sufen Li
Dalian University of Technology, Dalian, China
Haijun Li
Dalian Maritime University, Dalian, China
Jinxiang Wang
Dalian University of Technology, Dalian, China
Yan Shang
Dalian University of Technology, Dalian, China
Lanhua Dai
Dalian University of Technology, Dalian, China
Ming Dong
Dalian University of Technology, Dalian, China
Paper No:
IHTC14-22415, pp. 37-45; 9 pages
Published Online:
March 1, 2011
Citation
Li, S, Li, H, Wang, J, Shang, Y, Dai, L, & Dong, M. "Analysis of Influences of Soil Characteristics on the Underground Heat Exchanger With a Novel Heat and Mass Transfer Model." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 8. Washington, DC, USA. August 8–13, 2010. pp. 37-45. ASME. https://doi.org/10.1115/IHTC14-22415
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