Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR
Dynamic seals are one of the critical components of Absorber Rod Drive Mechanism of Fast Breeder Reactors, requiring separate experimental development. Their significance can't be overemphasized considering that the availability and re-usability of Control Rod Drive Mechanisms of Fast Breeder T...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-10-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573321002503 |
| _version_ | 1819129689925484544 |
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| author | Nihal Kaushal Sudheer Patri R. Suresh Kumar C. Meikandamurthy B.K. Sreedhar S. Murugan S. Raghupathy |
| author_facet | Nihal Kaushal Sudheer Patri R. Suresh Kumar C. Meikandamurthy B.K. Sreedhar S. Murugan S. Raghupathy |
| author_sort | Nihal Kaushal |
| collection | DOAJ |
| description | Dynamic seals are one of the critical components of Absorber Rod Drive Mechanism of Fast Breeder Reactors, requiring separate experimental development. Their significance can't be overemphasized considering that the availability and re-usability of Control Rod Drive Mechanisms of Fast Breeder Test Reactor is governed by the failure rate of dynamic seals (bellows). For prototype and subsequent Fast Breeder Reactors in India, choice of the dynamic seal is changed to an in-house designed & developed labyrinth type V-ring seal. The present work is related to the numerical investigations carried out to gain insights into the sealing mechanism and the thermal behaviour of these seals. The results indicate that the seal geometry is very important for obtaining optimum performance. By changing the geometry of the present seal, performance enhancement by more than 50% in important indices is obtained. Further, the results point out that caution shall be exercised when the seal material & its operating temperature are changed. Also, the numerical model developed in this study will be useful for developing more robust dynamic seals in future. |
| first_indexed | 2024-12-22T08:47:43Z |
| format | Article |
| id | doaj.art-f650710b2fb149ac83319f05d7f2a49a |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-22T08:47:43Z |
| publishDate | 2021-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-f650710b2fb149ac83319f05d7f2a49a2022-12-21T18:32:03ZengElsevierNuclear Engineering and Technology1738-57332021-10-01531034383448Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBRNihal Kaushal0Sudheer Patri1R. Suresh Kumar2C. Meikandamurthy3B.K. Sreedhar4S. Murugan5S. Raghupathy6Indira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, Tamilnadu, 603102, IndiaCorresponding author.; Indira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, Tamilnadu, 603102, IndiaIndira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, Tamilnadu, 603102, IndiaIndira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, Tamilnadu, 603102, IndiaIndira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, Tamilnadu, 603102, IndiaIndira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, Tamilnadu, 603102, IndiaIndira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, Tamilnadu, 603102, IndiaDynamic seals are one of the critical components of Absorber Rod Drive Mechanism of Fast Breeder Reactors, requiring separate experimental development. Their significance can't be overemphasized considering that the availability and re-usability of Control Rod Drive Mechanisms of Fast Breeder Test Reactor is governed by the failure rate of dynamic seals (bellows). For prototype and subsequent Fast Breeder Reactors in India, choice of the dynamic seal is changed to an in-house designed & developed labyrinth type V-ring seal. The present work is related to the numerical investigations carried out to gain insights into the sealing mechanism and the thermal behaviour of these seals. The results indicate that the seal geometry is very important for obtaining optimum performance. By changing the geometry of the present seal, performance enhancement by more than 50% in important indices is obtained. Further, the results point out that caution shall be exercised when the seal material & its operating temperature are changed. Also, the numerical model developed in this study will be useful for developing more robust dynamic seals in future.http://www.sciencedirect.com/science/article/pii/S1738573321002503Fast breeder reactorDynamic sealElastomeric seal numerical studyV-ring sealSeal thermal behaviour |
| spellingShingle | Nihal Kaushal Sudheer Patri R. Suresh Kumar C. Meikandamurthy B.K. Sreedhar S. Murugan S. Raghupathy Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR Nuclear Engineering and Technology Fast breeder reactor Dynamic seal Elastomeric seal numerical study V-ring seal Seal thermal behaviour |
| title | Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR |
| title_full | Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR |
| title_fullStr | Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR |
| title_full_unstemmed | Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR |
| title_short | Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR |
| title_sort | characterising the dynamic seals used in absorber rod drive mechanisms in indian fbr |
| topic | Fast breeder reactor Dynamic seal Elastomeric seal numerical study V-ring seal Seal thermal behaviour |
| url | http://www.sciencedirect.com/science/article/pii/S1738573321002503 |
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