Energy renovation strategies for office buildings using direct ground cooling systems
(2021) In Science and Technology for the Built Environment 27(7). p.874-891- Abstract
Direct ground cooling systems (DGCS) can provide comfort cooling to buildings without the use of any refrigeration-based cooling methods. DGCS is an emerging technology, commonly used for new office buildings in cold climates. This study aims to evaluate the energy-saving possibilities of a DGCS compared to a conventional chiller system for an existing office building. A typical Swedish office building with a chiller-based cooling system and in need of an energy renovation is taken as a reference case. Various possible renovation measures are applied on the building and to the cooling system, and the results are evaluated in terms of borehole design and building energy demand. The results show that applying the DGCS substantially... (More)
Direct ground cooling systems (DGCS) can provide comfort cooling to buildings without the use of any refrigeration-based cooling methods. DGCS is an emerging technology, commonly used for new office buildings in cold climates. This study aims to evaluate the energy-saving possibilities of a DGCS compared to a conventional chiller system for an existing office building. A typical Swedish office building with a chiller-based cooling system and in need of an energy renovation is taken as a reference case. Various possible renovation measures are applied on the building and to the cooling system, and the results are evaluated in terms of borehole design and building energy demand. The results show that applying the DGCS substantially reduces the building’s purchased energy, as chiller electricity demand is eliminated. In addition, implementing the renovation measures to reduce the thermal demand of the building could further reduce purchased energy. The results suggest implementing the DGCS after performing the renovation measures. This may lead to a considerable reduction in the required borehole length and hence in the drilling costs. Results from this study provide useful inputs for designing boreholes in ground-coupled systems for new and existing office buildings.
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- author
- Arghand, Taha ; Javed, Saqib LU ; Trüschel, Anders and Dalenbäck, Jan olof
- publishing date
- 2021-03-16
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science and Technology for the Built Environment
- volume
- 27
- issue
- 7
- pages
- 18 pages
- publisher
- Taylor & Francis
- external identifiers
-
- scopus:85102807602
- ISSN
- 2374-4731
- DOI
- 10.1080/23744731.2021.1890520
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2021 The Author(s). Published with license by Taylor & Francis Group, LLC. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
- id
- abc50980-12b2-44e8-ba19-696b0120f780
- date added to LUP
- 2021-03-31 18:49:46
- date last changed
- 2023-10-26 15:01:16
@article{abc50980-12b2-44e8-ba19-696b0120f780,
abstract = {{<p>Direct ground cooling systems (DGCS) can provide comfort cooling to buildings without the use of any refrigeration-based cooling methods. DGCS is an emerging technology, commonly used for new office buildings in cold climates. This study aims to evaluate the energy-saving possibilities of a DGCS compared to a conventional chiller system for an existing office building. A typical Swedish office building with a chiller-based cooling system and in need of an energy renovation is taken as a reference case. Various possible renovation measures are applied on the building and to the cooling system, and the results are evaluated in terms of borehole design and building energy demand. The results show that applying the DGCS substantially reduces the building’s purchased energy, as chiller electricity demand is eliminated. In addition, implementing the renovation measures to reduce the thermal demand of the building could further reduce purchased energy. The results suggest implementing the DGCS after performing the renovation measures. This may lead to a considerable reduction in the required borehole length and hence in the drilling costs. Results from this study provide useful inputs for designing boreholes in ground-coupled systems for new and existing office buildings.</p>}},
author = {{Arghand, Taha and Javed, Saqib and Trüschel, Anders and Dalenbäck, Jan olof}},
issn = {{2374-4731}},
language = {{eng}},
month = {{03}},
number = {{7}},
pages = {{874--891}},
publisher = {{Taylor & Francis}},
series = {{Science and Technology for the Built Environment}},
title = {{Energy renovation strategies for office buildings using direct ground cooling systems}},
url = {{http://dx.doi.org/10.1080/23744731.2021.1890520}},
doi = {{10.1080/23744731.2021.1890520}},
volume = {{27}},
year = {{2021}},
}