Effective borehole thermal resistance of a single U-tube ground heat exchanger

Quan Liao; Chao Zhou; Wenzhi Cui; Tien Chien Jen

doi:10.1080/10407782.2012.691061

Effective borehole thermal resistance of a single U-tube ground heat exchanger

Quan Liao, Chao Zhou, Wenzhi Cui, Tien Chien Jen

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The effective borehole thermal resistance of a vertical, single U-tube ground heat exchanger is numerically studied. The nonuniform temperature distributions along the perimeter of both borehole and outside diameter of two pipes are taken into account to evaluate effective borehole thermal resistance. A best-fit correlation for effective borehole thermal resistance is proposed, and the dimensionless borehole thermal resistances are compared between the present correlation and other available equations in the literature. It is found that the present correlation of effective borehole thermal resistance is more accurate than those of available formulas.

Original language	English
Pages (from-to)	197-210
Number of pages	14
Journal	Numerical Heat Transfer; Part A: Applications
Volume	62
Issue number	3
DOIs	https://doi.org/10.1080/10407782.2012.691061
Publication status	Published - 1 Aug 2012
Externally published	Yes

ASJC Scopus subject areas

Numerical Analysis
Condensed Matter Physics

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/10407782.2012.691061

Cite this

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AB - The effective borehole thermal resistance of a vertical, single U-tube ground heat exchanger is numerically studied. The nonuniform temperature distributions along the perimeter of both borehole and outside diameter of two pipes are taken into account to evaluate effective borehole thermal resistance. A best-fit correlation for effective borehole thermal resistance is proposed, and the dimensionless borehole thermal resistances are compared between the present correlation and other available equations in the literature. It is found that the present correlation of effective borehole thermal resistance is more accurate than those of available formulas.

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Effective borehole thermal resistance of a single U-tube ground heat exchanger

Abstract

ASJC Scopus subject areas

UN SDGs

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