Nozzles in the knuckle region of a torispherical head: Stress levels and load interaction effects

M. F. Hsieh, D. G. Moffat, J. Mistry

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The results of a limited parametric study on the stress levels in knuckle encroaching nozzles in a Klöpperböden torispherical head due to pressure and nozzle loads are presented. The results give support to the CEN TC 54 procedure which requires thickening of the knuckle region for such nozzles for pressure loading. Stress levels due to nozzle loads are shown to be of the same order of magnitude as those in the equivalent axisymmetric nozzle. Studies of interaction diagrams have confirmed the CEN TC 54 proposal for combined loading in axisymmetric nozzles but have shown that a linear interaction rule should be recommended for non-axisymmetric nozzles in heads.

Original languageEnglish
Pages (from-to)31-41
Number of pages11
JournalProceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
Volume214
Issue number1
DOIs
Publication statusPublished - 2000

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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