Flow-induced vibration testing of replacement thermowell designs

Haslinger, K.H.

doi:10.1016/j.jfluidstructs.2003.07.012

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2007

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Cited by 6 publications

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“…Similar conclusions are reached for thermowells designed to the code criteria although used in non-code applications [4]. A more complete discussion of flow-induced vibration as it relates to thermowells and intrusive pipe fittings generally may be found in the literature [5]- [9]. The present discussion is restricted to that aspect of the code dealing with resonant frequency calculations.…”

Section: Introductionsupporting

confidence: 60%

Critical frequency estimates for thermowells covered under ASME PTC 19.3

Bartran¹,

Ripple²

2007

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The ASME Performance Test Code, PTC 19.3, establishes the velocity ratings of thermowells in terms of a simplified resonant frequency estimate. The theoretical basis for this is examined and compared with discrete element methods. It is found that the code calculation fails to guarantee conservative velocity ratings for shorter thermowells. The implications of this finding and possible remedies are discussed.

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Section: Introductionsupporting

confidence: 60%