Water condensation in carbon-dioxide-based engineered geothermal power generation
Engineered geothermal systems (EGS) may utilise carbon dioxide as a heat extraction fluid instead of water. Nevertheless, water present in the geothermal reservoir will be extracted into the working fluid, affecting fluid flow behaviour and the required surface plant design for such a system. Dissol...
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2014
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:328230 2023-05-15T15:52:42+02:00 Water condensation in carbon-dioxide-based engineered geothermal power generation Atrens, Aleks D. Gurgenci, Hal Rudolph, Victor 2014-07-01 https://espace.library.uq.edu.au/view/UQ:328230 eng eng Pergamon Press doi:10.1016/j.geothermics.2014.03.008 issn:0375-6505 issn:1879-3576 orcid:0000-0002-8340-0485 orcid:0000-0002-5819-9302 Not set Carbon dioxide EGS Engineered geothermal systems Geothermal Phase diagram Supercritical Thermosiphon Water 1907 Geology 1909 Geotechnical Engineering and Engineering Geology 2105 Renewable Energy Sustainability and the Environment Journal Article 2014 ftunivqespace https://doi.org/10.1016/j.geothermics.2014.03.008 2020-12-15T01:23:23Z Engineered geothermal systems (EGS) may utilise carbon dioxide as a heat extraction fluid instead of water. Nevertheless, water present in the geothermal reservoir will be extracted into the working fluid, affecting fluid flow behaviour and the required surface plant design for such a system. Dissolved water in a carbon dioxide-rich phase changes thermodynamic properties, and causes corrosion, and erosion where water droplets condense. The conditions for condensation of water in such a system have not been examined. We present condensation curves that predict conditions for water condensation, and bubble curves that predict carbonic acid concentration in a condensed HO-rich phase. These diagrams predict concentration thresholds for condensation in the production wellbore and surface equipment. Predicted concentration thresholds for condensation do not change significantly in response to change in water content. The probable minimum CO concentration allowable for direct use of carbon dioxide as a working fluid is 95% for the turbine. Article in Journal/Newspaper Carbonic acid The University of Queensland: UQ eSpace Geothermics 51 397 405 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Carbon dioxide EGS Engineered geothermal systems Geothermal Phase diagram Supercritical Thermosiphon Water 1907 Geology 1909 Geotechnical Engineering and Engineering Geology 2105 Renewable Energy Sustainability and the Environment |
spellingShingle |
Carbon dioxide EGS Engineered geothermal systems Geothermal Phase diagram Supercritical Thermosiphon Water 1907 Geology 1909 Geotechnical Engineering and Engineering Geology 2105 Renewable Energy Sustainability and the Environment Atrens, Aleks D. Gurgenci, Hal Rudolph, Victor Water condensation in carbon-dioxide-based engineered geothermal power generation |
topic_facet |
Carbon dioxide EGS Engineered geothermal systems Geothermal Phase diagram Supercritical Thermosiphon Water 1907 Geology 1909 Geotechnical Engineering and Engineering Geology 2105 Renewable Energy Sustainability and the Environment |
description |
Engineered geothermal systems (EGS) may utilise carbon dioxide as a heat extraction fluid instead of water. Nevertheless, water present in the geothermal reservoir will be extracted into the working fluid, affecting fluid flow behaviour and the required surface plant design for such a system. Dissolved water in a carbon dioxide-rich phase changes thermodynamic properties, and causes corrosion, and erosion where water droplets condense. The conditions for condensation of water in such a system have not been examined. We present condensation curves that predict conditions for water condensation, and bubble curves that predict carbonic acid concentration in a condensed HO-rich phase. These diagrams predict concentration thresholds for condensation in the production wellbore and surface equipment. Predicted concentration thresholds for condensation do not change significantly in response to change in water content. The probable minimum CO concentration allowable for direct use of carbon dioxide as a working fluid is 95% for the turbine. |
format |
Article in Journal/Newspaper |
author |
Atrens, Aleks D. Gurgenci, Hal Rudolph, Victor |
author_facet |
Atrens, Aleks D. Gurgenci, Hal Rudolph, Victor |
author_sort |
Atrens, Aleks D. |
title |
Water condensation in carbon-dioxide-based engineered geothermal power generation |
title_short |
Water condensation in carbon-dioxide-based engineered geothermal power generation |
title_full |
Water condensation in carbon-dioxide-based engineered geothermal power generation |
title_fullStr |
Water condensation in carbon-dioxide-based engineered geothermal power generation |
title_full_unstemmed |
Water condensation in carbon-dioxide-based engineered geothermal power generation |
title_sort |
water condensation in carbon-dioxide-based engineered geothermal power generation |
publisher |
Pergamon Press |
publishDate |
2014 |
url |
https://espace.library.uq.edu.au/view/UQ:328230 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
doi:10.1016/j.geothermics.2014.03.008 issn:0375-6505 issn:1879-3576 orcid:0000-0002-8340-0485 orcid:0000-0002-5819-9302 Not set |
op_doi |
https://doi.org/10.1016/j.geothermics.2014.03.008 |
container_title |
Geothermics |
container_volume |
51 |
container_start_page |
397 |
op_container_end_page |
405 |
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1766387813729697792 |