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Calculation Tool for Effective Borehole Thermal Resistance

Spitler, Jeffrey D ; Grundmann, Rachel and Javed, Saqib LU (2016) 12th REHVA World Congress (Clima 2016)
Abstract
This paper presents a tool for computing thermal resistance of single U-tube ground heat exchangers placed in vertical boreholes. The tool is complete in the sense that it can compute both local and effective thermal resistances for either grouted or groundwater-filled boreholes. For grouted boreholes, it utilizes the highly accurate multipole method. For groundwater-filled boreholes, it utilizes recently-published convection correlations. Thermal property routines for water and water-antifreeze mixtures allow calculation of the interior convective thermal resistance for a wide range of cases.
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author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
ground source heat pumps, ground heat exchangers, borehole thermal resistance,, ground heat exchangers,, borehole thermal resistance
host publication
Proceedings of the 12th REHVA World Congress (Clima 2016)
pages
10 pages
conference name
12th REHVA World Congress (Clima 2016)
conference location
Aalborg, Denmark
conference dates
2016-05-22 - 2016-05-25
language
English
LU publication?
yes
id
640778c5-4cf6-4f95-a52a-664b4deded37
date added to LUP
2016-08-14 23:17:20
date last changed
2025-04-04 14:56:24
@inproceedings{640778c5-4cf6-4f95-a52a-664b4deded37,
  abstract     = {{This paper presents a tool for computing thermal resistance of single U-tube ground heat exchangers placed in vertical boreholes. The tool is complete in the sense that it can compute both local and effective thermal resistances for either grouted or groundwater-filled boreholes. For grouted boreholes, it utilizes the highly accurate multipole method. For groundwater-filled boreholes, it utilizes recently-published convection correlations. Thermal property routines for water and water-antifreeze mixtures allow calculation of the interior convective thermal resistance for a wide range of cases.}},
  author       = {{Spitler, Jeffrey D and Grundmann, Rachel and Javed, Saqib}},
  booktitle    = {{Proceedings of the 12th REHVA World Congress (Clima 2016)}},
  keywords     = {{ground source heat pumps, ground heat exchangers, borehole thermal resistance,; ground heat exchangers,; borehole thermal resistance}},
  language     = {{eng}},
  title        = {{Calculation Tool for Effective Borehole Thermal Resistance}},
  url          = {{https://lup.lub.lu.se/search/files/10908250/BH_resistance_tool_Final.pdf}},
  year         = {{2016}},
}