Thermal Conductivity of Argillaceous Rocks: Determination Methodology Using In Situ Heating Tests
Saved in:
| Title: | Thermal Conductivity of Argillaceous Rocks: Determination Methodology Using In Situ Heating Tests |
|---|---|
| Authors: | Garitte, Benoit, Gens Solé, Antonio, Vaunat, Jean, Gilles, Armand |
| Contributors: | Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques |
| Source: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Scipedia Open Access Scipedia SL Recercat. Dipósit de la Recerca de Catalunya instname |
| Publisher Information: | Springer Science and Business Media LLC, 2012. |
| Publication Year: | 2012 |
| Subject Terms: | Engineering, Civil, 0211 other engineering and technologies, Engineering, Multidisciplinary, 02 engineering and technology, Computer Science, Software Engineering, Boom clay, Opalinus clay, 01 natural sciences, Engineering, Marine, Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques, 12. Responsible consumption, Engineering, Manufacturing, Engineering, Mechanical, Argila -- Assaigs de materials, Thermal conductivity, Engineering, Industrial, Argillaceous rocks, 8. Economic growth, Callovo-Oxfordian clay, Enginyeria civil::Geotècnia::Mecànica de roques [Àrees temàtiques de la UPC], Engineering, Ocean, Engineering, Aerospace, Engineering, Biomedical, 0105 earth and related environmental sciences |
| Description: | This study focuses on the characterisation of thermal conductivity for three potential host rocks for radioactive waste disposal. First, the heat conduction process is reviewed on the basis of an analytical solution and key aspects related to anisotropic conduction are discussed. Then the existing information on the three rocks is summarised and a broad uncertainty range of thermal conductivity is estimated based on the mineralogical composition. Procedures to backanalyse the thermal conductivity on the basis of in situ heating tests are assessed and a methodology is put forward. Finally, this methodology is used to estimate the impact of experimental uncertainties and applied to the four in situ heating tests. In the three potential host rocks, a clear influence of the bedding planes was identified and anisotropic heat conduction was shown to be necessary to interpret the observed temperature field. Experimental uncertainties were also shown to induce a larger uncertainty on the anisotropy ratio than on the equivalent thermal conductivity defined as the geometric mean of the thermal conductivity in the three principal directions. |
| Document Type: | Article |
| File Description: | application/pdf |
| Language: | English |
| ISSN: | 1434-453X 0723-2632 |
| DOI: | 10.1007/s00603-012-0335-x |
| Access URL: | https://www.scipedia.com/wd/images/a/ad/Draft_Samper_456005085_4944_Garitte2014_Article_ThermalConductivityOfArgillace.pdf https://www.scipedia.com/public/Garitte_et_al_2012a http://hdl.handle.net/2117/18086 https://www.scipedia.com/public/Garitte_et_al_2012a https://www.infona.pl/resource/bwmeta1.element.springer-d81c6472-af1b-31a6-b2b4-b3f883e4cbb3 https://link.springer.com/article/10.1007/s00603-012-0335-x https://link.springer.com/article/10.1007/s00603-012-0335-x/fulltext.html http://ui.adsabs.harvard.edu/abs/2014RMRE...47..111G/abstract https://upcommons.upc.edu/handle/2117/18086 https://hdl.handle.net/2117/18086 https://doi.org/10.1007/s00603-012-0335-x |
| Rights: | Springer TDM CC BY NC SA |
| Accession Number: | edsair.doi.dedup.....5e963f94a65d071d7cfdf3fccbf8b3e5 |
| Database: | OpenAIRE |
Full Text Finder 
Nájsť tento článok vo Web of Science | Abstract: | This study focuses on the characterisation of thermal conductivity for three potential host rocks for radioactive waste disposal. First, the heat conduction process is reviewed on the basis of an analytical solution and key aspects related to anisotropic conduction are discussed. Then the existing information on the three rocks is summarised and a broad uncertainty range of thermal conductivity is estimated based on the mineralogical composition. Procedures to backanalyse the thermal conductivity on the basis of in situ heating tests are assessed and a methodology is put forward. Finally, this methodology is used to estimate the impact of experimental uncertainties and applied to the four in situ heating tests. In the three potential host rocks, a clear influence of the bedding planes was identified and anisotropic heat conduction was shown to be necessary to interpret the observed temperature field. Experimental uncertainties were also shown to induce a larger uncertainty on the anisotropy ratio than on the equivalent thermal conductivity defined as the geometric mean of the thermal conductivity in the three principal directions. |
|---|---|
| ISSN: | 1434453X 07232632 |
| DOI: | 10.1007/s00603-012-0335-x |