In this section
@article{Regnier:2023:10.1007/s10040-023-02630-9,
author = {Regnier, G and Salinas, P and Jackson, MD},
doi = {10.1007/s10040-023-02630-9},
journal = {Hydrogeology Journal},
pages = {1067--1082},
title = {Predicting the risk of saltwater contamination of freshwater aquifers during aquifer thermal energy storage},
url = {http://dx.doi.org/10.1007/s10040-023-02630-9},
volume = {31},
year = {2023}
}
TY - JOUR
AB - Aquifer thermal energy storage (ATES) is an underground thermal energy storage technology with a large potential to decarbonise the heating and cooling of buildings. ATES installations typically store thermal energy in aquifers that are also exploited for potable water, so a major consideration during development is ensuring that system operation will not lead to groundwater pollution. In this study, the risk of contamination due to upconing of a shallow freshwater/saltwater interface during ATES operation is investigated. Fluid fow, and heat and salt (chloride ion) transport are simulated in a homogene ous aquifer during ATES operation via a well doublet. The impact of geological, hydrological and operational parameters is investigated in a sensitivity analysis. Two new dimensionless numbers are proposed to characterise salt upconing and redistribution during ATES operation and provide a close match to simulated concentrations: CR,w characterises the con tamination risk at the ATES installation, and CR,d characterises the risk at locations downstream of the ATES installation with respect to background groundwater fow. ATES systems with CR,w and CR,d < 10 introduce low risk of contamination in a homogenous aquifer, with chloride concentration at, and downstream of, the ATES system, remaining below the World Health Organisation’s advised limit. ATES installations with CR,w and CR,d > 10 cause a rapid increase in aquifer chloride concentration. The results are used to estimate an exclusion distance beyond which ATES system operation will not cause contamination in a homogenous aquifer. The dimensionless parameters proposed allow rapid assessment of the potential for saltwater contamination during ATES operation.
AU - Regnier,G
AU - Salinas,P
AU - Jackson,MD
DO - 10.1007/s10040-023-02630-9
EP - 1082
PY - 2023///
SN - 1431-2174
SP - 1067
TI - Predicting the risk of saltwater contamination of freshwater aquifers during aquifer thermal energy storage
T2 - Hydrogeology Journal
UR - http://dx.doi.org/10.1007/s10040-023-02630-9
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000966651600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR - https://link.springer.com/article/10.1007/s10040-023-02630-9
UR - http://hdl.handle.net/10044/1/113927
VL - 31
ER -