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Principle investigator:
Britta Nestler
Prof. Dr. Britta Nestler
IAM-CMS

+49-721/608-45310

britta nestler∂kit edu

Homepage @ IAM-CMS

Scientific contact:
Hilgers
Prof. Dr. Christoph Hilgers
AGW

+49-721/608-42139

christoph hilgers ∂ kit edu

Gholamikorzani, Maziar
Dr. Maziar Gholami Korzani,
AGW

+49-721/608-45047

maziar gholamikorzani ∂ kit edu

Prajapati
M.Sc. Nishant Prajapati
IAM-CMS

+49-721/608-45022

nishant prajapati ∂ kit edu

Schneider, Daniel
Dr. Daniel Schneider
IAM-CMS

+49 721 608-47987

daniel schneider ∂ kit edu

Michael Seltzer
Dr. Michael Seltzer
IAM-CMS

+49-721/608-45311

michael selzer ∂ kit edu

Cluster Materials and Geoprocesses

Principle Investigator: Prof. Dr. Britta Nestler

Process simulation plays a crucial role in the efficient, safe and sustainable construction and use of geothermal power plants. It is an indispensable tool for understanding the complex thermal, hydraulic, mechanical and chemical processes (THMC) in fractured crystalline reservoirs.


Research in this cluster aims to investigate the influence of 3-D fracture geometry and surface structure on the flow properties, pressure drop, and heat transfer rate of a multi-phase fluid in multi-physical fluid mechanics simulations, mass transport, and heat transfer.

On the basis of hydrothermal calculations, the material models allow a description of the mineral precipitations and crystallization processes at the fracture surfaces and a prediction of the resulting changes in the opening width and permeability of the fractures.

Circulating fluids in enhanced geothermal systems are not in equilibrium with the in-situ conditions in respect to pressure, temperature and chemical composition. Complex fluid-rock interactions affect reactions of the mineral solution and precipitation and lead to:
   • long-term changes in reservoir hydraulics,
   • the mobilization of reservoir-specific naturally occurring chemotoxic and radiotoxic elements.

As a central part of the topic "geothermal energy systems" the cluster focuses i.a. on the artifact-free geochemical monitoring and analysis of circulating fluids, the thermodynamic and kinetic description of thermal waters including the prediction of mineral precipitation and the mechanical understanding of technical solutions such as the use of inhibitors to prevent scaling.

This approach will improve the sustainability of enhanced geothermal systems and minimize the operating and disposal costs of waste materials.

The material resistance in geothermal power plants is subject to great challenges due to strong chemical and mechanical stress caused by the aggressive thermal water. Material corrosion of metallic building materials is therefore of great importance for the power plant operators. Reasonable choice of materials and engineering corrosion protection can increase power plant availability and minimize operating costs. Therefore, another goal is to minimize corrosion processes in power plant operations.

Publikationen & Proceedings - Peer Reviewed (ISI, Scopus)


2018
2017
2016
2015
2014
2013

Publications & Proceedings (nicht referenziert bei ISI, Scopus)


2018
2017
2016
2015