Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle
Numerical study on AHWR fuel bundle has been carried out to assess influence of circumferential and cross flow rewetting on the conduction heat transfer. The AHWR fuel bundle quenching under accident condition is designed primarily with radial jets at several axial locations. A 3D (r, θ, z) transien...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/589543 |
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| author | Mithilesh Kumar D. Mukhopadhyay A. K. Ghosh Ravi Kumar |
| author_facet | Mithilesh Kumar D. Mukhopadhyay A. K. Ghosh Ravi Kumar |
| author_sort | Mithilesh Kumar |
| collection | DOAJ |
| description | Numerical study on AHWR fuel bundle has been carried out to assess influence of circumferential and cross flow rewetting on the conduction heat transfer. The AHWR fuel bundle quenching under accident condition is designed primarily with radial jets at several axial locations. A 3D (r, θ, z) transient conduction fuel pin model has been developed to carry out the study with a finite difference method (FDM) technique with alternating direction implicit (ADI) scheme. The single pin has been considered to study effect of circumferential conduction and multipins have been considered to study the influence of cross flow. Both analyses are carried out with the same fluid temperature and heat transfer coefficients as boundary conditions. It has been found from the analyses that, for radial jet, the circumferential conduction is significant and due to influence of overall cross flow the reductions in fuel temperature in the same quench plane in different rings are different with same initial surface temperature. Influence of cross flow on rewetting is found to be very significant. Outer fuel pins rewetting time is higher than inner. |
| format | Article |
| id | doaj-art-ebb8626a830e4c179ee936a3c37b5ab9 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-ebb8626a830e4c179ee936a3c37b5ab92025-02-03T06:10:49ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/589543589543Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel BundleMithilesh Kumar0D. Mukhopadhyay1A. K. Ghosh2Ravi Kumar3Reactor Safety Division, Bhabha Atomic Research Centre, Mumbai, IndiaReactor Safety Division, Bhabha Atomic Research Centre, Mumbai, IndiaRaja Ramanna Fellow, Bhabha Atomic Research Centre, Mumbai, IndiaIndian Institute of Technology, Roorkee, IndiaNumerical study on AHWR fuel bundle has been carried out to assess influence of circumferential and cross flow rewetting on the conduction heat transfer. The AHWR fuel bundle quenching under accident condition is designed primarily with radial jets at several axial locations. A 3D (r, θ, z) transient conduction fuel pin model has been developed to carry out the study with a finite difference method (FDM) technique with alternating direction implicit (ADI) scheme. The single pin has been considered to study effect of circumferential conduction and multipins have been considered to study the influence of cross flow. Both analyses are carried out with the same fluid temperature and heat transfer coefficients as boundary conditions. It has been found from the analyses that, for radial jet, the circumferential conduction is significant and due to influence of overall cross flow the reductions in fuel temperature in the same quench plane in different rings are different with same initial surface temperature. Influence of cross flow on rewetting is found to be very significant. Outer fuel pins rewetting time is higher than inner.http://dx.doi.org/10.1155/2014/589543 |
| spellingShingle | Mithilesh Kumar D. Mukhopadhyay A. K. Ghosh Ravi Kumar Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle The Scientific World Journal |
| title | Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle |
| title_full | Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle |
| title_fullStr | Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle |
| title_full_unstemmed | Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle |
| title_short | Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle |
| title_sort | numerical study on influence of cross flow on rewetting of ahwr fuel bundle |
| url | http://dx.doi.org/10.1155/2014/589543 |
| work_keys_str_mv | AT mithileshkumar numericalstudyoninfluenceofcrossflowonrewettingofahwrfuelbundle AT dmukhopadhyay numericalstudyoninfluenceofcrossflowonrewettingofahwrfuelbundle AT akghosh numericalstudyoninfluenceofcrossflowonrewettingofahwrfuelbundle AT ravikumar numericalstudyoninfluenceofcrossflowonrewettingofahwrfuelbundle |