Influence of Convalescence on Soil Temperature Field of Well Group around Vertical Single-U-Tube Ground Source Heat Exchangers

Zhen Yu Du; Yi Xing Zhang

doi:10.4028/www.scientific.net/AMR.430-432.1712

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 430-432Influence of Convalescence on Soil Temperature...

Influence of Convalescence on Soil Temperature Field of Well Group around Vertical Single-U-Tube Ground Source Heat Exchangers

Abstract:

In this paper, the mathematical physical model of the heat and moisture transfer in the single-U-tube heat exchanger of a ground source heat pump(GSHP) on well group is established and validated using observed data from the practical rock-soil thermal response test for a resident district in Taiyuan, water in soil is three-dimensional seepage flow and the soil is layered according to the geological structure in the depth direction. The dynamic load of the district for one year is input into the model. The temperature fields of well group are simulated numerically in the two conditions which convalescence periods are omitted or not. It shows that it rather necessary to take the influence of convalescence periods into consideration while predicting the soil temperature field of a GSHP system running for a long term.

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Periodical:

Advanced Materials Research (Volumes 430-432)

Pages:

1712-1715

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.430-432.1712

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Online since:

January 2012

Authors:

Zhen Yu Du, Yi Xing Zhang

Keywords:

Convalescence, Heat Exchanger, Layered Soil, Single-U-Tube, Three-Dimensional Seepage Flow, Transient Temperature Field, Varying Heat Flow Rates, Well Group

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References

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