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Numerical Modeling of Geothermal Applications

Rühaak, W. and Schätzl, A. and Diersch, H.-J. G. (2010):
Numerical Modeling of Geothermal Applications.
In: World Geothermal Congress 2010, Bali, 25.-29.04.2010, [Conference or Workshop Item]

Abstract

Geothermics has an increasing importance to energy supplies worldwide. Thus, there is also an increasing need to numerically model different geothermal scenarios. Depending on the type of problem, it may be necessary to take density coupled processes into account. Further, the thermal dependence of material properties should be considered. Special problems occur in the case of fractured flow, which can be of high importance with respect to productivity. In general, the simultaneous modeling of heat and mass transport processes is necessary. Several programs which apply different numerical methods are available, but the need to model complex subsurface geometries reduces the number substantially. We will present modeling approaches with FEFLOW. These will include applications for deep geothermics (enhanced geothermal systems), the use of mine water for heating purposes, and the efficient numerical modeling of shallow ground heat exchanger arrays.

Item Type: Conference or Workshop Item
Erschienen: 2010
Creators: Rühaak, W. and Schätzl, A. and Diersch, H.-J. G.
Title: Numerical Modeling of Geothermal Applications
Language: English
Abstract:

Geothermics has an increasing importance to energy supplies worldwide. Thus, there is also an increasing need to numerically model different geothermal scenarios. Depending on the type of problem, it may be necessary to take density coupled processes into account. Further, the thermal dependence of material properties should be considered. Special problems occur in the case of fractured flow, which can be of high importance with respect to productivity. In general, the simultaneous modeling of heat and mass transport processes is necessary. Several programs which apply different numerical methods are available, but the need to model complex subsurface geometries reduces the number substantially. We will present modeling approaches with FEFLOW. These will include applications for deep geothermics (enhanced geothermal systems), the use of mine water for heating purposes, and the efficient numerical modeling of shallow ground heat exchanger arrays.

Uncontrolled Keywords: Numerical modeling;Heat transport;borehole heat exchangers;deep geothermics;shallow geothermics;BHE;GHE;Enhanced Geothermal System;Mine water
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Earth Science > Geothermal Science and Technology
Event Title: World Geothermal Congress 2010
Event Location: Bali
Event Dates: 25.-29.04.2010
Date Deposited: 06 Nov 2014 15:05
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