Characterising the dynamic seals used in absorber rod drive mechanisms in Indian FBR

Nihal Kaushal; Sudheer Patri; R. Suresh Kumar; C. Meikandamurthy; B.K. Sreedhar; S. Murugan; S. Raghupathy

doi:https://doi.org/10.1016/j.net.2021.04.030

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자료유형: 학술저널

저자정보: Nihal Kaushal (Indira Gandhi Centre for Atomic Research) Sudheer Patri (Indira Gandhi Centre for Atomic Research) R. Suresh Kumar (Indira Gandhi Centre for Atomic Research) C. Meikandamurthy (Indira Gandhi Centre for Atomic Research) B.K. Sreedhar (Indira Gandhi Centre for Atomic Research) S. Murugan (Indira Gandhi Centre for Atomic Research) S. Raghupathy (Indira Gandhi Centre for Atomic Research)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제10호

발행연도: 2021.10

수록면: 3,438 - 3,448 (11page)

DOI: https://doi.org/10.1016/j.net.2021.04.030

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Dynamic seals are one of the critical components of Absorber Rod Drive Mechanism of Fast BreederReactors, requiring separate experimental development. Their significance can't be overemphasizedconsidering that the availability and re-usability of Control Rod Drive Mechanisms of Fast Breeder TestReactor is governed by the failure rate of dynamic seals (bellows). For prototype and subsequent FastBreeder Reactors in India, choice of the dynamic seal is changed to an in-house designed & developedlabyrinth type V-ring seal. The present work is related to the numerical investigations carried out to gaininsights into the sealing mechanism and the thermal behaviour of these seals. The results indicate thatthe seal geometry is very important for obtaining optimum performance. By changing the geometry ofthe 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 temperatureare changed. Also, the numerical model developed in this study will be useful for developing more robustdynamic seals in future.

#Fast breeder reactor #Dynamic seal #Elastomeric seal numerical study #V-ring seal #Seal thermal behaviour

참고문헌 (17)

참고문헌 신청

V. R. Babu / 2010 / Testing and qualification of Control & safety Rod and its drive mechanism of fast breeder reactor / Nucl. Eng. Des 240(7):1728~1738

N. K. Sinha / 2012 / Unification of reactor elastomeric sealing based on material / Nucl. Eng. Des 243:404~418

J. C. Noakes / 1969 / Survey of Control Rod Drive Mechanisms for Application to the FFTF

F.H. Morgenstern / 1974 / Diverse Shutdown Systems for the KNK-1, KNK-2 and SNR-300 Reactors / Proceedings of the Fast Reactor Safety Meeting :1349~1369

V. S. Justin / 1976 / Control Rod Drive Mechanism : System Manual

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