Sustainability of Shallow Geothermal Energy for Building Air-Conditioning

Geothermal heat pumps have a widespread diffusion as they are able to deliver relatively higher energy output than other systems for building air-conditioning. The exploitation of low-enthalpy geothermal energy, however, presents crucial sustainability issues. This review investigates the primary fo...

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Autores principales:	Andrea Aquino, Flavio Scrucca, Emanuele Bonamente
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	geothermal heat pumps sustainability LCA energy analysis exergy analysis GWP Technology T
Acceso en línea:	https://doaj.org/article/4e989c9166dd47588c921f526600e8d9
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id	oai:doaj.org-article:4e989c9166dd47588c921f526600e8d9
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spelling	oai:doaj.org-article:4e989c9166dd47588c921f526600e8d92021-11-11T15:52:29ZSustainability of Shallow Geothermal Energy for Building Air-Conditioning10.3390/en142170581996-1073https://doaj.org/article/4e989c9166dd47588c921f526600e8d92021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7058https://doaj.org/toc/1996-1073Geothermal heat pumps have a widespread diffusion as they are able to deliver relatively higher energy output than other systems for building air-conditioning. The exploitation of low-enthalpy geothermal energy, however, presents crucial sustainability issues. This review investigates the primary forms of the environmental impact of geothermal heat pumps and the strategies for their mitigation. As life-cycle analyses shows that the highest impacts arise from installation and operation stages, most optimization studies focus on system thermodynamics, aiming at maximizing the energy performance via the optimization in the design of the different components interacting with the ground and serviced building. There are environmental studies of great relevance that investigate how the climate and ground properties affect the system sustainability and map the most suitable location for geothermal exploitation. Based on this review, ground-source heat pumps are a promising technology for the decarbonization of the building sector. However, a sustainable design of such systems is more complex than conventional air-conditioning systems, and it needs a holistic and multi-disciplinary approach to include the broad environmental boundaries to fully understand the environmental consequences of their operation.Andrea AquinoFlavio ScruccaEmanuele BonamenteMDPI AGarticlegeothermal heat pumpssustainabilityLCAenergy analysisexergy analysisGWPTechnologyTENEnergies, Vol 14, Iss 7058, p 7058 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	geothermal heat pumps sustainability LCA energy analysis exergy analysis GWP Technology T
spellingShingle	geothermal heat pumps sustainability LCA energy analysis exergy analysis GWP Technology T Andrea Aquino Flavio Scrucca Emanuele Bonamente Sustainability of Shallow Geothermal Energy for Building Air-Conditioning
description	Geothermal heat pumps have a widespread diffusion as they are able to deliver relatively higher energy output than other systems for building air-conditioning. The exploitation of low-enthalpy geothermal energy, however, presents crucial sustainability issues. This review investigates the primary forms of the environmental impact of geothermal heat pumps and the strategies for their mitigation. As life-cycle analyses shows that the highest impacts arise from installation and operation stages, most optimization studies focus on system thermodynamics, aiming at maximizing the energy performance via the optimization in the design of the different components interacting with the ground and serviced building. There are environmental studies of great relevance that investigate how the climate and ground properties affect the system sustainability and map the most suitable location for geothermal exploitation. Based on this review, ground-source heat pumps are a promising technology for the decarbonization of the building sector. However, a sustainable design of such systems is more complex than conventional air-conditioning systems, and it needs a holistic and multi-disciplinary approach to include the broad environmental boundaries to fully understand the environmental consequences of their operation.
format	article
author	Andrea Aquino Flavio Scrucca Emanuele Bonamente
author_facet	Andrea Aquino Flavio Scrucca Emanuele Bonamente
author_sort	Andrea Aquino
title	Sustainability of Shallow Geothermal Energy for Building Air-Conditioning
title_short	Sustainability of Shallow Geothermal Energy for Building Air-Conditioning
title_full	Sustainability of Shallow Geothermal Energy for Building Air-Conditioning
title_fullStr	Sustainability of Shallow Geothermal Energy for Building Air-Conditioning
title_full_unstemmed	Sustainability of Shallow Geothermal Energy for Building Air-Conditioning
title_sort	sustainability of shallow geothermal energy for building air-conditioning
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4e989c9166dd47588c921f526600e8d9
work_keys_str_mv	AT andreaaquino sustainabilityofshallowgeothermalenergyforbuildingairconditioning AT flavioscrucca sustainabilityofshallowgeothermalenergyforbuildingairconditioning AT emanuelebonamente sustainabilityofshallowgeothermalenergyforbuildingairconditioning
_version_	1718433107155091456

Sustainability of Shallow Geothermal Energy for Building Air-Conditioning

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