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Thermal response testing of a multiple borehole ground heat exchanger

Javed, Saqib LU and Per, Fahlén (2011) In International Journal of Low-Carbon Technologies 6(2). p.141-148
Abstract
This paper presents the methodology, results and a discussion of thermal response tests (TRTs) performed on a multiple borehole ground heat exchanger. The ground heat exchanger consisted of nine 80-m deep boreholes. TRTs with durations between 48 and 260 h were performed on individual boreholes. Tests were analysed using common evaluation methods, and ground conductivity and borehole resistance values were determined for all nine boreholes. In addition to these parameters, the undisturbed ground temperatures were also determined for individual boreholes using multiple approaches. A sensitivity analysis was performed to analyse the effects of various test and parameter uncertainties on the ground thermal conductivity and borehole thermal... (More)
This paper presents the methodology, results and a discussion of thermal response tests (TRTs) performed on a multiple borehole ground heat exchanger. The ground heat exchanger consisted of nine 80-m deep boreholes. TRTs with durations between 48 and 260 h were performed on individual boreholes. Tests were analysed using common evaluation methods, and ground conductivity and borehole resistance values were determined for all nine boreholes. In addition to these parameters, the undisturbed ground temperatures were also determined for individual boreholes using multiple approaches. A sensitivity analysis was performed to analyse the effects of various test and parameter uncertainties on the ground thermal conductivity and borehole thermal resistance estimations. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ground source heat pumps (GSHP), Ground thermal conductivity, Borehole, Thermal response test (TRT)
in
International Journal of Low-Carbon Technologies
volume
6
issue
2
pages
141 - 148
external identifiers
  • Scopus:79956049880
DOI
10.1093/ijlct/ctr004
language
English
LU publication?
yes
id
ad6b6b54-9437-454c-b33d-0031e57ee1d9 (old id 7450256)
alternative location
http://ijlct.oxfordjournals.org/content/6/2/141.full
date added to LUP
2015-06-26 14:40:23
date last changed
2017-01-08 05:47:28
@article{ad6b6b54-9437-454c-b33d-0031e57ee1d9,
  abstract     = {This paper presents the methodology, results and a discussion of thermal response tests (TRTs) performed on a multiple borehole ground heat exchanger. The ground heat exchanger consisted of nine 80-m deep boreholes. TRTs with durations between 48 and 260 h were performed on individual boreholes. Tests were analysed using common evaluation methods, and ground conductivity and borehole resistance values were determined for all nine boreholes. In addition to these parameters, the undisturbed ground temperatures were also determined for individual boreholes using multiple approaches. A sensitivity analysis was performed to analyse the effects of various test and parameter uncertainties on the ground thermal conductivity and borehole thermal resistance estimations.},
  author       = {Javed, Saqib and Per, Fahlén},
  keyword      = {Ground source heat pumps (GSHP),Ground thermal conductivity,Borehole,Thermal response test (TRT)},
  language     = {eng},
  number       = {2},
  pages        = {141--148},
  series       = {International Journal of Low-Carbon Technologies},
  title        = {Thermal response testing of a multiple borehole ground heat exchanger},
  url          = {http://dx.doi.org/10.1093/ijlct/ctr004},
  volume       = {6},
  year         = {2011},
}