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Geothermal Fluid Properties at Extreme Conditions

Edited by:
Alper Baba, PhD, Izmir Institute of Technology, Turkey
Harald Milsch, PhD, GFZ German Research Centre for Geosciences, Germany
Simona Regenspurg, PhD, GFZ German Research Centre for Geosciences, Germany

Submission Status: Open   |   Submission Deadline: 1 May 2024


Geothermal Energy – Science, Society and Technology is calling for submissions to our Collection on Geothermal Fluid Properties at Extreme Conditions. 





Image credits: Alper Baba

About the Collection

The efficiency of geothermal use depends on the behaviour of the fluids that transfer heat between the geosphere and the engineered components of a power plant. The physical and chemical properties of the fluids are often poorly defined because in situ sampling and measurements under extreme conditions are difficult and lead to large uncertainties in model predictions. Extreme conditions are those with fluid temperatures > 100°C up to critical conditions and / or salinity > 35 g/l (higher than seawater).

To extend thermodynamic databases, this special issue focuses on recent studies of experimental or in situ investigations of the chemical, physical, and microbial properties of fluids and the implementation of these results.

However, there are many engineering and chemical problems caused by geothermal fluid. In view of these outstanding fluid-rock interactions in hydrothermal systems, this special issue seeks to redefine the properties of geothermal fluids under extreme conditions to understand the current function of geothermal energy for sustainable development.

The main topics of interest are:

•    Research to extend thermodynamic databases (solubility, activity, reaction kinetics) to higher temperatures and higher salinities through laboratory experiments and modelling approaches
•    Research to determine the extent and location of the degassing front of geothermal fluids during production (field, laboratory, and modelling approaches)
•    Research to characterise the types of organic matter and microorganisms in various geothermal fluids and their effect on scaling and biofilm formation through laboratory studies
•    Studies on heat capacity, density, electrical and thermal conductivity, sonic velocity, and viscosity at different p, T, X through laboratory experiments and modelling approaches
•    Development of a sampling technique suitable for collecting fluids in hot and superheated systems
•    Application in reactive transport modelling at high temperatures and salinities
•    Database and platforms to collect information on geothermal fluid properties across Europe, together with their geological environment 
•    Also, results from the Horizon 2020 REFLECT project will be compiled in this special issue.

Submission Guidelines

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This Collection welcomes submission of research articles. Should you wish to submit a different article type, please read our submission guidelines to confirm that type is accepted by the journal. 

Articles for this Collection should be submitted via our submission system, Editorial Manager. Please select the appropriate Collection title “Geothermal Fluid Properties at Extreme Conditions” from the dropdown menu.

Articles will undergo the journal’s peer-review process and are subject to all the journal’s standard policies. Articles will be added to the Collection as they are published.

The Editors have no competing interests with the submissions which they handle through the peer-review process. The peer-review of any submissions for which the Editors have competing interests is handled by another Editorial Board Member who has no competing interests.

There are currently no articles in this collection.