Deterministic modeling of the impact of underground structures on urban groundwater temperature.
作者： Guillaume Attard , Yvan Rossier , Thierry Winiarski , Laurent Eisenlohr
DOI: 10.1016/J.SCITOTENV.2016.07.229
关键词: Volume (thermodynamics) 、 Geothermal energy 、 Geology 、 Groundwater 、 Hydrostatic pressure 、 Aquifer 、 Impervious surface 、 Geothermal gradient 、 Hydrology 、 Urban heat island
摘要: Underground structures have a major influence on groundwater temperature and contribution the anthropogenic heat fluxes into urban aquifers. Groundwater is crucial for resource management as it can provide operational sustainability indicators quality geothermal energy. Here, three dimensional transport modeling approach was conducted to quantify thermally affected zone (TAZ, i.e. increase in of more than +0.5°C) caused by two common underground structures: (1) an impervious structure (2) draining structure. These design techniques consist ballasting order resist hydrostatic pressure, or under remove pressure. The volume TAZ these shown range from 14 20 times Additionally, cumulative impact assessed average thermal conditions at scale greater Lyon area (France). island effect highlighted business center city. Increase +4.5°C were locally put evidence. annual flow aquifer computed deterministically represents 4.5GW·h. Considering impacts, deep should be taken account potential mapping. Finally, amount energy provided used indicator heating areas.
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