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Combining direct ground cooling with ground-source heat pumps and district heating : Borehole sizing and land area requirements

Arghand, Taha ; Javed, Saqib LU and Dalenbäck, Jan Olof (2022) In Geothermics 106.
Abstract

This article studies the potential combination of direct ground cooling (DGC) with district heating (DH) and ground source heat pumps (GSHP) to compare the required borehole depths and needed drilling areas. It also examines two different borehole sizing approaches to optimize investment costs and drilling areas. The results show that the required borehole depths in most cases are shorter for the DGC and DH combination than for the DGC and GSHP combination. It is also demonstrated that the optimal range of borehole outlet temperatures could be chosen based on the trade-off between borehole installation and terminal units’ costs.

Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Borehole sizing, Cold climates, Direct ground cooling, Ground heat exchanger, Ground-source heat pump (GSHP), Optimization
in
Geothermics
volume
106
article number
102565
publisher
Elsevier
external identifiers
  • scopus:85137697558
ISSN
0375-6505
DOI
10.1016/j.geothermics.2022.102565
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2022 The Author(s)
id
4da374b6-2d88-4904-904c-4e87ed428231
date added to LUP
2022-11-10 20:08:41
date last changed
2022-11-11 14:01:37
@article{4da374b6-2d88-4904-904c-4e87ed428231,
  abstract     = {{<p>This article studies the potential combination of direct ground cooling (DGC) with district heating (DH) and ground source heat pumps (GSHP) to compare the required borehole depths and needed drilling areas. It also examines two different borehole sizing approaches to optimize investment costs and drilling areas. The results show that the required borehole depths in most cases are shorter for the DGC and DH combination than for the DGC and GSHP combination. It is also demonstrated that the optimal range of borehole outlet temperatures could be chosen based on the trade-off between borehole installation and terminal units’ costs.</p>}},
  author       = {{Arghand, Taha and Javed, Saqib and Dalenbäck, Jan Olof}},
  issn         = {{0375-6505}},
  keywords     = {{Borehole sizing; Cold climates; Direct ground cooling; Ground heat exchanger; Ground-source heat pump (GSHP); Optimization}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Geothermics}},
  title        = {{Combining direct ground cooling with ground-source heat pumps and district heating : Borehole sizing and land area requirements}},
  url          = {{http://dx.doi.org/10.1016/j.geothermics.2022.102565}},
  doi          = {{10.1016/j.geothermics.2022.102565}},
  volume       = {{106}},
  year         = {{2022}},
}