Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts
To investigate the heat loads imposed on a reactor vessel through the natural convection of core melts in severe accidents, mass transfer experiments were performed based on the heat transfer/mass transfer analogy, using two- (2-D) and three-dimensional (3-D) facilities of various heights. The modif...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-10-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573316302492 |
| _version_ | 1819012287360401408 |
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| author | Su-Hyeon Kim Hae-Kyun Park Bum-Jin Chung |
| author_facet | Su-Hyeon Kim Hae-Kyun Park Bum-Jin Chung |
| author_sort | Su-Hyeon Kim |
| collection | DOAJ |
| description | To investigate the heat loads imposed on a reactor vessel through the natural convection of core melts in severe accidents, mass transfer experiments were performed based on the heat transfer/mass transfer analogy, using two- (2-D) and three-dimensional (3-D) facilities of various heights. The modified Rayleigh numbers ranged from 1012 to 1015, with a fixed Prandtl number of 2,014. The measured Nusselt numbers showed a trend similar to those of existing studies, but the absolute values showed discrepancies owing to the high Prandtl number of this system. The measured angle-dependent Nusselt numbers were analyzed for 2-D and 3-D geometries, and a multiplier was developed that enables the extrapolation of 2-D data into 3-D data. The definition of RaH′ was specified for 2-D geometries, so that results could be extrapolated for 3-D geometries; also, heat transfer correlations were developed. |
| first_indexed | 2024-12-21T01:41:39Z |
| format | Article |
| id | doaj.art-daec08668a6c403b8c6548c5c343679f |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-21T01:41:39Z |
| publishDate | 2017-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-daec08668a6c403b8c6548c5c343679f2022-12-21T19:20:09ZengElsevierNuclear Engineering and Technology1738-57332017-10-014971405141310.1016/j.net.2017.05.008Two- and three-dimensional experiments for oxide pool in in-vessel retention of core meltsSu-Hyeon KimHae-Kyun ParkBum-Jin ChungTo investigate the heat loads imposed on a reactor vessel through the natural convection of core melts in severe accidents, mass transfer experiments were performed based on the heat transfer/mass transfer analogy, using two- (2-D) and three-dimensional (3-D) facilities of various heights. The modified Rayleigh numbers ranged from 1012 to 1015, with a fixed Prandtl number of 2,014. The measured Nusselt numbers showed a trend similar to those of existing studies, but the absolute values showed discrepancies owing to the high Prandtl number of this system. The measured angle-dependent Nusselt numbers were analyzed for 2-D and 3-D geometries, and a multiplier was developed that enables the extrapolation of 2-D data into 3-D data. The definition of RaH′ was specified for 2-D geometries, so that results could be extrapolated for 3-D geometries; also, heat transfer correlations were developed.http://www.sciencedirect.com/science/article/pii/S1738573316302492CorrelationIn-Vessel RetentionMass TransferMultiplierNatural ConvectionOxide Pool |
| spellingShingle | Su-Hyeon Kim Hae-Kyun Park Bum-Jin Chung Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts Nuclear Engineering and Technology Correlation In-Vessel Retention Mass Transfer Multiplier Natural Convection Oxide Pool |
| title | Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts |
| title_full | Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts |
| title_fullStr | Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts |
| title_full_unstemmed | Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts |
| title_short | Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts |
| title_sort | two and three dimensional experiments for oxide pool in in vessel retention of core melts |
| topic | Correlation In-Vessel Retention Mass Transfer Multiplier Natural Convection Oxide Pool |
| url | http://www.sciencedirect.com/science/article/pii/S1738573316302492 |
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