Applied Geosciences - Geohydromodelling

Running projects

ANGUS+

Impacts of the use of the geological underground for thermal, electrical or material storage - dimensioning, risk analysis and prognosis of induced effects

 New methods and technologies for energy storage are required for the transition to renewable energy sources. Subsurface energy storage systems, such as salt caverns for hydrogen, compressed air and methane storage or porous formations for heat and gas storage offer the possibility of hosting large amounts of energy or substance. When employing systems, an adequate system and process understanding is required in order to predict the complex and interacting effects on protected compartments as e.g. shallow ground water. This understanding is the basis for assessing the potential as well as risk connected with a sustainable usage of these storage options, especially when considering possible mutual influences.

The ANGUS+ project therefore aims at developing and applying an open source numerical simulator for the induced coupled thermal, hydraulic, geomechanical and geochemical processes. Realistic - however synthetic - scenarios for the use of the geological underground as an energy storage system are then developed, parameterized, numerically simulated and interpreted with regard to risk analysis and effect forecasting. Using the simulated and interpreted scenarios, monitoring concepts are derived, tested and validated, and a first methodology for large scale planning of the geological subsurface considering different surface and subsurface usage scenarios is devised.

 

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Project partners:

  • Institute for Geosciences, Kiel University
  • Geographical Institute, Kiel University
  • Helmholtz Centre for Environmental Research GmbH - UFZ
  • German Research Centre for Geosciences - GFZ
  • Ruhr-University Bochum

 

Project duration:

July 2012 - June 2017
 

Funding:

 

This study is funded by the German Federal Ministry of Education and Research (BMBF) within the framework of the “Energy Storage” research program.

Project website:

angusplus.de

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IGLU

Analysis, Modelling and assessment if an intelligent and environmentally neutral geothermal long-term heat storage system

Work package: Modelling and Environmental Impacts

The IGLU project aims at the development of an environmentally neutral and economical solar collector supplied energy storage system in a modular construction for integration into heat supply-systems of new or already existing appartment or multi-family buildings as well as in industrial buildings. Main focus of the subproject „Modelling and Environmental Impacts“ is the development of a numerical coupled thermo-hydromechanical-chemical (THMC) model tool based on the open-source scientific code software OpenGeoSys for a simulation based design of the IGLU energy storage system. Numerical sensitivity analysis is used for an optimization of thermo-hydraulic material properties and geometries of the heat storage system with respect to efficiency and environmental impacts. The model also will be used for the dimensioning of the laboratory test facility as well as for the prognosis of possible impacts on the geochemical state of soil and groundwater in the vicinity of the storage system. Results of these studies will serve as a basis for the development of a guideline for environmental compatibility.

 

Project partners:

  • Institute for Geosciences, Kiel University
  • SCHEER Heizsysteme & Produktionstechnik GmbH
  • Helmholtz Centre for Environmental Research UFZ GmbH

 

Project duration:

 August 2014 - May 2018

Funding:

German Federal Ministry of Economy and Energy (BMWi)

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