Articles | Volume 58
https://doi.org/10.5194/adgeo-58-41-2022
https://doi.org/10.5194/adgeo-58-41-2022
11 Nov 2022
 | 11 Nov 2022

Laboratory assessment of corrosion rate of carbon steel ground heat exchangers

Gianluca Cadelano, Alessandro Bortolin, Eloisa Di Sipio, Giovanni Ferrarini, Paolo Bison, Adriana Bernardi, Giorgia Dalla Santa, and Antonio Galgaro

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New tools to support the designing of efficient and reliable ground source heat exchangers: the Cheap-GSHPs databases and maps
Antonio Galgaro, Giorgia Dalla Santa, Michele De Carli, Giuseppe Emmi, Angelo Zarrella, Johannes Mueller, David Bertermann, Amaia Castelruiz, Sarah Noye, Rodolfo Perego, Sebastian Pera, Fabio Poletto, Riccardo Pasquali, and Adriana Bernardi
Adv. Geosci., 49, 47–55, https://doi.org/10.5194/adgeo-49-47-2019,https://doi.org/10.5194/adgeo-49-47-2019, 2019
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Cited articles

Arriba-Rodriguez, L., Villanueva-Balsera, J., Ortega-Fernandez, F., and Rodriguez-Perez, F.: Methods to Evaluate Corrosion in Buried Steel Structures: A Review, Metals, 8, 334, https://doi.org/10.3390/met8050334, 2018. 
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ASTM International: ASTM G162-18 Standard Practice for Conducting and Evaluating Laboratory Corrosion Tests in Soils, ASTM Committee, ISBN 978-1-6822-1804-0, 2021. 
Baboian, R., Munger, C. G., and Treseder, R. S.: Nace Corrosion Engineer's Reference Book, NACE, Houston, TX, ISBN 1-57590-139-0, 1991. 
Boban, L., Miše, D., Herceg, S., and Soldo, V.: Application and Design Aspects of Ground Heat Exchangers, Energies, 14, 2134, https://doi.org/10.3390/en14082134, 2021. 
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Short summary
Within the Cheap-GSHPs and GEO4CIVHIC projects, innovations were advanced in the field of ground heat exchangers design for shallow geothermal systems. Among these, a metallic type has been proposed that can be installed in direct contact with the underground. As carbon steel is prone to corrosion and corrosivity varies based on site-specific underground conditions, a laboratory assessment methodology was applied to metal samples to assess the corrosion rate and forecast the durability.