Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR
| Autor: | S. Sakthivel Murugan, S. Raghupathy, Sudheer Patri, Nihal Kaushal, C. Meikandamurthy, R. Suresh Kumar, Bojja Sreedhar |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
020209 energy
Control rod TK9001-9401 Mechanical engineering Dynamic seal Seal thermal behaviour Failure rate 02 engineering and technology Seal (mechanical) Fast breeder reactor 030218 nuclear medicine & medical imaging Mechanism (engineering) 03 medical and health sciences Bellows 0302 clinical medicine Breeder (animal) Nuclear Energy and Engineering Operating temperature 0202 electrical engineering electronic engineering information engineering Nuclear engineering. Atomic power Environmental science Point (geometry) V-ring seal Elastomeric seal numerical study |
| Zdroj: | Nuclear Engineering and Technology, Vol 53, Iss 10, Pp 3438-3448 (2021) |
| ISSN: | 1738-5733 |
| DOI: | 10.1016/j.net.2021.04.030 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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