Studied on Return Water Temperature of Buried Pipe and Soil Temperature Field of Soil-Source Heat Hump System by the Finite-Element Method

Guo Dan Liu; Fu Sheng Liu; Dan Meng; Xu Quan Li; Zhi Gang Shi; Gang Wang

doi:10.4028/www.scientific.net/AMR.171-172.163

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 171-172Studied on Return Water Temperature of Buried Pipe...

Studied on Return Water Temperature of Buried Pipe and Soil Temperature Field of Soil-Source Heat Hump System by the Finite-Element Method

Abstract:

Heat transfer model of buried pipe heat exchanger is established first, and solved by the ANSYS finite element simulation software. Model is verified by experiment, average error is 6.4%. On the above basis, return water temperature of buried pipe and soil temperature are analyzed during whole operation. Through whole cooling season, outlet water temperature of buried pipe increased by 6.7°C, up to 21.2°C. After 45 days on transition season, temperature reduced 3.2°C, up to 18°C. Within one year, temperature difference is above 1.1°C before-and-after heating and cooling operation. It reveals that soil temperature cannot fully recover only by natural heat conduction and soil heat storage appears, which should be paid more attention in the project.

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Periodical:

Advanced Materials Research (Volumes 171-172)

Pages:

163-166

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.171-172.163

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Online since:

December 2010

Authors:

Guo Dan Liu, Fu Sheng Liu, Dan Meng, Xu Quan Li, Zhi Gang Shi, Gang Wang

Keywords:

ANSYS Thermal Analysis, Finite Element Model (FEM), Soil Source Heat Pump

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