Deep geothermal plants in northern and southwestern Germany often work with highly saline thermal waters. The high salt content and pressure, dissolved gases and the temperature level mean that all plant components are at a high risk of corrosion. At the geothermal research plant at Groß Schönebeck, the German Research Centre for Geosciences in Potsdam is systemically investigating this issue.
The BINE-Projektinfo brochure “Corrosion in geothermal plants” (06/2012) presents this work, which involves continually monitoring the physical and chemical parameters of the underground water and testing the corrosion resistance of different materials.
To ensure the reliable and economic operation of geothermal plants, it is important to know the precise composition of the deep waters (fluids) in order to be able to estimate the possible physical and chemical fluid interactions. For this reason, a geothermal plant is operated under realistic conditions at Groß Schönebeck in which the fluid and gas monitoring is conducted during the ongoing operation. The facility also has several corrosion test tracks. Here the corrosion resistance of components and material samples, including various steel types and nickel alloys, are tested until the reactions reach equilibrium on the material surfaces. The intention of the tests is to check the results of previous laboratory investigations under practical conditions.
Its location and high salt content means that the Groß Schönebeck facility is typical for many geothermal sites in Germany. Fluid parameters from plants in other regions are incorporated into the investigations. The intention is to develop a fluid-specific and site-dependent material application catalogue.Press contact
About FIZ Karlsruhe
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.
Rüdiger Mack | idw
New plate adds plot twist to ancient tectonic tale
15.08.2017 | Rice University
Global warming will leave different fingerprints on global subtropical anticyclones
14.08.2017 | Institute of Atmospheric Physics, Chinese Academy of Sciences
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
Researchers from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science, the Italian Space Agency (ASI), and the Instituto Geofisico--Escuela Politecnica Nacional (IGEPN) of Ecuador, showed an increasing volcanic danger on Cotopaxi in Ecuador using a powerful technique known as Interferometric Synthetic Aperture Radar (InSAR).
The Andes region in which Cotopaxi volcano is located is known to contain some of the world's most serious volcanic hazard. A mid- to large-size eruption has...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
16.08.2017 | Physics and Astronomy
16.08.2017 | Materials Sciences
16.08.2017 | Interdisciplinary Research