Smart-SWS: Smart multifunctional stormwater storage

The goal of this project is the technical implementation of a decentralized storage concept in existing aquifers that is capable of absorbing one or more flood peaks and releasing them to the receiving water with a very significant time delay or holding them for higher-value use.

Project status: ongoing

Funded by:

BMBF (Research Program WaX)

Geothermal Alliance Bavaria (GAB-2)

After the successful first phase (2016-2019) of the Geothermal Alliance Bavaria (GAB) consortium, a second phase was launched in 2020. The Chair of Hydrogeology contributes in the subproject longterm: Ensuring sustainable thermal water production.

“In this subproject, the minimization of the drilling, exploration and production risk of hydrothermal geothermal energy in the Bavarian Molasse Basin, as well as sustainable reservoir management, are to be addressed in particular. For this purpose, a holistic approach is planned, which considers the interactions of the different influencing parameters (temperature, hydraulics, stresses/mechanics, hydrochemistry) in all scales. In particular, the Bavarian Molasse Basin should be investigated as a continuous geothermal system. Thus, the influences of the different structural units of the Bavarian Molasse Basin on the exploration, development and productivity of the Malm reservoir will be investigated. The key role lies on the petrophysical and geomechanical characterization of the reservoir as well as on the interaction between the building units of the Bavarian Molasse Basin based on drilling data, production data, drill cores, analog samples and field laboratories. The knowledge gained should then be applied in site-specific investigations for the development of prognostic and monitoring tools to improve reservoir engineering and monitoring and to ensure sustainable reservoir management and reduce drilling risk.” (https://geothermie-allianz.de/en/home/)

Project status: ongoing

Funded by:

Bavarian State Ministry of Science and Arts

GAB: Chemical reservoir management

In this project, which is part of the Geothermal-Alliance Bavaria, subproject "long-term. Ensuring sustainable thermal water production" the physical and hydrochemical measured values of characteristic plants are processed and examined for multivariate changes in order to discriminate and quantify natural and technically induced gradients.

Project status: ongoing

Financial support:

- Bayer. Staatsministerium für Wissenschaft und Kunst im Rahmen der Geothermie-Allianz Bayern

Compaction, seal integrity and temperature distribution in the Bavarian Molasse Basin

Compaction, seal integrity and temperature distribution in the Bavarian Molasse Basin KompakT is a joint project funded by the Bavarian Environmental Agency between the assistant professorship for geothermal technology GTT and the Chair of hydrogeology.

We are working on work package 2, which deals with the interpretation of temperature data in the Bavarian Molasse Basin, as well as an estimation of heat storage potentials. For this, the rock temperatures and the thermal rock properties have to be known. For the determination of the rock temperature, relevant parameters for the temperature prognosis will be collected (BHT measurement, temp-log, mud duration, TOP-Malm, etc.) and sensitivity analyses will be performed on the corrections for the quantitative determination of the uncertainty range. Subsequently, temperature gradients will be estimated and temperatures in the project area will be regionalized. Much focus will be placed on a detailed presentation of the uncertainties in the temperature forecast and the error propagation from the temperature measurement to the extrapolation of the regionalization, as this is given little to no attention in existing temperature models.

The temperatures and results of the compaction analysis shall be used as input parameters in a basin modeling exercise.

Project status: ongoing

Funded by:

Bavarian Environmental Agency

GeoSPOT - Geologische Nutzungs- und Speicherpotenziale im quartären und tertiären Untergrund des Großraums Augsburg

The research objective of the GeoSPOT project is the creation of a hydrogeological and geothermal database to estimate and improve the geothermal potential of the shallow quaternary aquifer in the wider area of Augsburg. The research goals include the first-time acquisition and evaluation of comprehensive, three-dimensional geological and hydrogeological data with a focus on the utilization of geological and storage potentials. Especially, the specification and parameterization of the potentials of the shallow geological layers in a 3D-model are key points. Furthermore, the extension of the 3D-geological lithofaciesmodel of Munich (GeoPot-project) for user-specific applications is carried out.

FouMon: Development of an ultrasound-based fouling monitoring solution for in-situ tracking and prognosis of occurring scalings and biofilms in geothermal plants and open cooling circuits.

Fouling is an extreme problem in the industry and causes millions of dollars of damage annually, mainly due to spontaneous plant failure. In this project, a low-cost, ultrasound-based sensor network for direct detection and determination of fouling and biofilms is developed for geothermal plants and open cooling circuits. The sensor network is supported by a self-learning predictive-maintenance algorithm that enables prediction of fouling formation based on hydrogeochemical simulations and models developed in the project. Concrete recommendations for plant operation are derived from this. The detachment from fixed maintenance intervals or operation until failure increases the efficiency and resilience of the plant and reduces the use of auxiliary materials.

Project status: ongoing

COST Action: Geothermal-DHC

Geothermal-DHC aims to address the integration of geothermal technologies to heating and cooling grids based on experiences from case studies across Europe. About 40 Institutions take part in this action. TUM is National Coordinator.

Project status: ongoing

Funded by: European Cooperation in Science and Technology (COST)

ISOCHEM - GEOTHERMAL AT THE FOOT OF THE BAVARIAN ALPS

TUM SCIENTISTS OF THE CHAIR OF HYDROGEOLOGY USE ENVIRONMENTAL ISOTOPES AND PORE-WATER CHEMISTRY TO BETTER UNDERSTAND THE DEEP DARK SUBSURFACE FOR CLEAN ENERGY SOURCES.