Quench cooling under reduced gravity

D. Chatain 1 C. Mariette 1 V.S. Nikolayev 1, * D. Beysens 1
* Corresponding author
1 SBT - Service des Basses Températures
Abstract : We report quench cooling experiments performed with liquid O2 under different levels of gravity, simulated with magnetic gravity compensation. A copper disk is quenched from 300 to 90 K. It is found that the cooling time in microgravity is very long in comparison with any other gravity level. This phenomenon is explained by the insulating effect of the gas surrounding the disk. A weak gas pressurization (which results in subcooling of the liquid with respect to the saturation temperature) is shown to drastically improve the heat exchange, thus reducing the cooling time (about 20 times). The effect of subcooling on the heat transfer is analyzed at different gravity levels. It is shown that this type of experiment cannot be used for the analysis of the critical heat flux of the boiling crisis. The film boiling heat transfer and the minimum heat flux of boiling are analyzed as functions of gravity and subcooling.
Document type :
Journal articles
Complete list of metadatas
https://hal-cea.archives-ouvertes.fr/cea-01481067
Contributor : Dominique Girard <>
Submitted on : Thursday, March 2, 2017 - 11:00:51 AM
Last modification on : Thursday, April 4, 2019 - 5:10:42 PM
Long-term archiving on : Wednesday, May 31, 2017 - 1:21:57 PM

File

1303.6217.pdf
Files produced by the author(s)

Identifiers

Collections

CEA | DSM-INAC | INAC-SBT | UGA | CEA-DRF | IRIG | CEA-GRE

Citation

D. Chatain, C. Mariette, V.S. Nikolayev, D. Beysens. Quench cooling under reduced gravity. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2013, 88, pp.013004. ⟨10.1103/PhysRevE.88.013004⟩. ⟨cea-01481067⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

98

Files downloads

275

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD