Effect of high temperature on structural behaviour of metal-to-metal seal in a pressure relief valve

Anwar, Ali and Gorash, Yevgen and Dempster, William and Hamilton, Robert and Nash, David (2016) Effect of high temperature on structural behaviour of metal-to-metal seal in a pressure relief valve. In: 23rd International Conference on Fluid Sealing 2016, 2016-03-02 - 2016-03-03.

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Abstract

This paper presents a numerical study involving the deformation of contact faces for a metal-to-metal seal in a typical pressure relief valve. The valve geometry is simplified to an axisymmetric problem, which comprises a simple geometry consisting of only three components: A cylindrical nozzle; which is in contact with a disc (representing the valve seat on top); which is preloaded by a compressed linear spring. The nozzle-disk pair is made of the austenitic stainless steel AISI type 316N(L) steel, which is typically used for power plant components. In a previous study, the macro-micro interaction of Fluid Pressure Penetration (FPP) was carried out in an iterative manual procedure at a temperature of 20°C. This procedure is now automated and implemented through an APDL script, which adjusts the spring force according to the current depth of FPP at a macroscale to maintain a consistent seal at elevated temperatures. Based upon the obtained results, specific suggestions to improve the leak tightness of the metal-to-metal seals at elevated temperatures are formulated.

ORCID iDs

Anwar, Ali ORCID: https://orcid.org/0000-0001-7246-008X

Gorash, Yevgen ORCID: https://orcid.org/0000-0003-2802-7814

Dempster, William ORCID: https://orcid.org/0000-0001-8918-3832

Hamilton, Robert ORCID: https://orcid.org/0000-0002-3504-9774

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	56248
  Dates:	Date Event 23 February 2016 Published 19 January 2016 Accepted
  Subjects:	Technology > Mechanical engineering and machinery
  Department:	Faculty of Engineering > Mechanical and Aerospace Engineering
  Depositing user:	Pure Administrator
  Date deposited:	29 Apr 2016 11:06
  Last modified:	22 Feb 2025 13:39
  URI:	https://strathprints.strath.ac.uk/id/eprint/56248