Introduction Motivation for the thermal use of underground or groundwater systems Importance of the local conditions Technical systems Energy demand and energy production Management of underground resources Impact on groundwater quality and ecology Geotechnical issues Regulatory issues Challenges related to design and management Scope of the book References Fundamentals Theory of water flow and heat transport in the subsurface Thermal property values References Analytical solutions Closed systems Open systems References Numerical solutions Two-dimensional horizontal numerical solutions Multidimensional numerical solutions Strategy for coupled flow and heat transport Some available codes for thermal transport modeling in groundwater References Long-term operability and sustainability Systems in low permeable media Thermal evolution in aquifers Further criteria of sustainability References Field methods Hydrogeological field methods Thermal response tests Thermal tracer test References Case studies Case study Altach (Austria) Limmat valley aquifer Zurich (Switzerland) Bad Wurzach (Germany) References Index
{{comment.content}}