Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC Configurations
The present paper systematically investigated pore scale thermal hydraulics characteristics of molten salt cooled high temperature pebble bed reactor. By using computational fluid dynamics (CFD) methods and employing simplified body center cubic (BCC) and face center cubic (FCC) model, pressure drop...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2014/589895 |
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| author | Shixiong Song Xiangzhou Cai Yafen Liu Quan Wei Wei Guo |
| author_facet | Shixiong Song Xiangzhou Cai Yafen Liu Quan Wei Wei Guo |
| author_sort | Shixiong Song |
| collection | DOAJ |
| description | The present paper systematically investigated pore scale thermal hydraulics
characteristics of molten salt cooled high temperature pebble bed reactor. By using computational fluid dynamics (CFD) methods and employing simplified body center cubic (BCC) and face center cubic (FCC) model, pressure
drop and local mean Nusselt number are calculated. The simulation result shows that the high Prandtl number molten salt in packed bed has unique fluid-dynamics and thermodynamic properties. There are divergences between
CFD results and empirical correlations’ predictions of pressure drop and local Nusselt numbers. Local pebble surface temperature distributions in several default conditions are investigated. Thermal removal capacities of molten salt are confirmed in the case of nominal condition; the pebble surface temperature under the condition of local power distortion shows the tolerance of pebble in extreme neutron dose exposure. The numerical experiments of local pebble insufficient cooling indicate that in the molten salt cooled pebble bed reactor, the pebble surface temperature is not very sensitive to loss of partial coolant. The methods and results of this paper would be useful for optimum designs and safety analysis of molten salt cooled pebble bed reactors. |
| format | Article |
| id | doaj-art-b8f4c142ce3340d9872893f61b6d7ede |
| institution | DOAJ |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-b8f4c142ce3340d9872893f61b6d7ede2025-08-20T03:22:49ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832014-01-01201410.1155/2014/589895589895Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC ConfigurationsShixiong Song0Xiangzhou Cai1Yafen Liu2Quan Wei3Wei Guo4University of Chinese Academy of Sciences, Yuquan Road 19, Beijing 100049, ChinaShanghai Institute of Applied Physics, Jialuo Road 2019, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Jialuo Road 2019, Shanghai 201800, ChinaUniversity of Chinese Academy of Sciences, Yuquan Road 19, Beijing 100049, ChinaShanghai Institute of Applied Physics, Jialuo Road 2019, Shanghai 201800, ChinaThe present paper systematically investigated pore scale thermal hydraulics characteristics of molten salt cooled high temperature pebble bed reactor. By using computational fluid dynamics (CFD) methods and employing simplified body center cubic (BCC) and face center cubic (FCC) model, pressure drop and local mean Nusselt number are calculated. The simulation result shows that the high Prandtl number molten salt in packed bed has unique fluid-dynamics and thermodynamic properties. There are divergences between CFD results and empirical correlations’ predictions of pressure drop and local Nusselt numbers. Local pebble surface temperature distributions in several default conditions are investigated. Thermal removal capacities of molten salt are confirmed in the case of nominal condition; the pebble surface temperature under the condition of local power distortion shows the tolerance of pebble in extreme neutron dose exposure. The numerical experiments of local pebble insufficient cooling indicate that in the molten salt cooled pebble bed reactor, the pebble surface temperature is not very sensitive to loss of partial coolant. The methods and results of this paper would be useful for optimum designs and safety analysis of molten salt cooled pebble bed reactors.http://dx.doi.org/10.1155/2014/589895 |
| spellingShingle | Shixiong Song Xiangzhou Cai Yafen Liu Quan Wei Wei Guo Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC Configurations Science and Technology of Nuclear Installations |
| title | Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC Configurations |
| title_full | Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC Configurations |
| title_fullStr | Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC Configurations |
| title_full_unstemmed | Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC Configurations |
| title_short | Pore Scale Thermal Hydraulics Investigations of Molten Salt Cooled Pebble Bed High Temperature Reactor with BCC and FCC Configurations |
| title_sort | pore scale thermal hydraulics investigations of molten salt cooled pebble bed high temperature reactor with bcc and fcc configurations |
| url | http://dx.doi.org/10.1155/2014/589895 |
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