Ground energy systems: from analysis to geotechnical design
Ground energy systems: from analysis to geotechnical design
Ground energy systems use the ground and groundwater beneath a site as a heat source or sink to reduce energy costs and improve the environmental performance of buildings. The design and performance of the ground element of these systems (boreholes and ground loops) are dominant factors in the capital and operating costs of the system, yet, at present, such systems are often specified with little geotechnical input. This paper reviews some of the existing design approaches from a geotechnical perspective, and identifies potential failure modes (short term, long term and regulatory related) for ground energy systems. Short-term failures may result from deficiencies in the capacity of the infrastructure forming the ground element and/or from poor connection between the infrastructure and the ground. Long-term failures may derive from misestimation of loads and/or ground parameters. Possible future directions in the design of ground energy systems are discussed, and the need for informed geotechnical input to ground energy system design is highlighted.
261-271
Preene, Martin
8db9383a-1e89-482f-8bb6-a5364c57db3b
Powrie, William
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
1 September 2009
Preene, Martin
8db9383a-1e89-482f-8bb6-a5364c57db3b
Powrie, William
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Preene, Martin and Powrie, William
(2009)
Ground energy systems: from analysis to geotechnical design.
Géotechnique, 59 (3), .
(doi:10.1680/geot.2009.59.3.261).
Abstract
Ground energy systems use the ground and groundwater beneath a site as a heat source or sink to reduce energy costs and improve the environmental performance of buildings. The design and performance of the ground element of these systems (boreholes and ground loops) are dominant factors in the capital and operating costs of the system, yet, at present, such systems are often specified with little geotechnical input. This paper reviews some of the existing design approaches from a geotechnical perspective, and identifies potential failure modes (short term, long term and regulatory related) for ground energy systems. Short-term failures may result from deficiencies in the capacity of the infrastructure forming the ground element and/or from poor connection between the infrastructure and the ground. Long-term failures may derive from misestimation of loads and/or ground parameters. Possible future directions in the design of ground energy systems are discussed, and the need for informed geotechnical input to ground energy system design is highlighted.
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Published date: 1 September 2009
Organisations:
Civil Engineering & the Environment
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Local EPrints ID: 155027
URI: http://eprints.soton.ac.uk/id/eprint/155027
ISSN: 0016-8505
PURE UUID: b84b34c6-a70e-42ac-a5fc-53588fb88860
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Date deposited: 27 May 2010 08:33
Last modified: 14 Mar 2024 02:38
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Author:
Martin Preene
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