Literature research in relevant fields to understand pressure relief valve leak tightness in a static closed state

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5 Citations (Scopus)

Abstract

Currently, no review of literature exists which attempts to understand the leakage phenomenon of metal-to-metal seal contact Pressure Relief Valves (PRV) for static closed positions as they reach the set pressure point. This paper attempts to do just that by drawing on inspiration from other research areas such as: metal-to-metal contact and gasket seals. The key topics of interest surrounding the leakage of fluid through a gap are: fluid flow assumptions; surface characteristics and its deformation; and experimental techniques used to quantify leakage. The fluid flow assumptions relating to the gap height such as transmissivity and diffusivity are found to be directly linked to the surface roughness and the surfaces deformations. Traditionally the summing method has been used to represent two rough surfaces at a micro scale from which the Tsukizoe and Hisakado theory has been applied for deformation of the micro contact in a plastic manner. The path the fluid also takes through the gap is investigated with recent work using computational methods to determine that path. Current experimental leakage quantification techniques are also discussed. Finally, the future development of PRV static leakage is examined.

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Pressure relief valves
Metals
Leakage (fluid)
Seals
Flow of fluids
Fluids
Computational methods
Surface roughness
Plastics

Keywords

  • contact
  • surface characteristics
  • metal-to-metal seal
  • leakage
  • surface deformation
  • safety valve

Cite this

@article{8fa4d6ad3ebd408ab77b77e0a2c42da0,
title = "Literature research in relevant fields to understand pressure relief valve leak tightness in a static closed state",
abstract = "Currently, no review of literature exists which attempts to understand the leakage phenomenon of metal-to-metal seal contact Pressure Relief Valves (PRV) for static closed positions as they reach the set pressure point. This paper attempts to do just that by drawing on inspiration from other research areas such as: metal-to-metal contact and gasket seals. The key topics of interest surrounding the leakage of fluid through a gap are: fluid flow assumptions; surface characteristics and its deformation; and experimental techniques used to quantify leakage. The fluid flow assumptions relating to the gap height such as transmissivity and diffusivity are found to be directly linked to the surface roughness and the surfaces deformations. Traditionally the summing method has been used to represent two rough surfaces at a micro scale from which the Tsukizoe and Hisakado theory has been applied for deformation of the micro contact in a plastic manner. The path the fluid also takes through the gap is investigated with recent work using computational methods to determine that path. Current experimental leakage quantification techniques are also discussed. Finally, the future development of PRV static leakage is examined.",
keywords = "contact, surface characteristics, metal-to-metal seal, leakage, surface deformation, safety valve",
author = "A.A. Anwar and Y. Gorash and W. Dempster and R. Hamilton",
year = "2015",
month = "12",
day = "22",
doi = "10.1016/j.proeng.2015.12.179",
language = "English",
volume = "130",
pages = "95--103",
journal = "Procedia Engineering",
issn = "1877-7058",

}

TY - JOUR

T1 - Literature research in relevant fields to understand pressure relief valve leak tightness in a static closed state

AU - Anwar, A.A.

AU - Gorash, Y.

AU - Dempster, W.

AU - Hamilton, R.

PY - 2015/12/22

Y1 - 2015/12/22

N2 - Currently, no review of literature exists which attempts to understand the leakage phenomenon of metal-to-metal seal contact Pressure Relief Valves (PRV) for static closed positions as they reach the set pressure point. This paper attempts to do just that by drawing on inspiration from other research areas such as: metal-to-metal contact and gasket seals. The key topics of interest surrounding the leakage of fluid through a gap are: fluid flow assumptions; surface characteristics and its deformation; and experimental techniques used to quantify leakage. The fluid flow assumptions relating to the gap height such as transmissivity and diffusivity are found to be directly linked to the surface roughness and the surfaces deformations. Traditionally the summing method has been used to represent two rough surfaces at a micro scale from which the Tsukizoe and Hisakado theory has been applied for deformation of the micro contact in a plastic manner. The path the fluid also takes through the gap is investigated with recent work using computational methods to determine that path. Current experimental leakage quantification techniques are also discussed. Finally, the future development of PRV static leakage is examined.

AB - Currently, no review of literature exists which attempts to understand the leakage phenomenon of metal-to-metal seal contact Pressure Relief Valves (PRV) for static closed positions as they reach the set pressure point. This paper attempts to do just that by drawing on inspiration from other research areas such as: metal-to-metal contact and gasket seals. The key topics of interest surrounding the leakage of fluid through a gap are: fluid flow assumptions; surface characteristics and its deformation; and experimental techniques used to quantify leakage. The fluid flow assumptions relating to the gap height such as transmissivity and diffusivity are found to be directly linked to the surface roughness and the surfaces deformations. Traditionally the summing method has been used to represent two rough surfaces at a micro scale from which the Tsukizoe and Hisakado theory has been applied for deformation of the micro contact in a plastic manner. The path the fluid also takes through the gap is investigated with recent work using computational methods to determine that path. Current experimental leakage quantification techniques are also discussed. Finally, the future development of PRV static leakage is examined.

KW - contact

KW - surface characteristics

KW - metal-to-metal seal

KW - leakage

KW - surface deformation

KW - safety valve

UR - http://www.sciencedirect.com/science/article/pii/S1877705815040631

U2 - 10.1016/j.proeng.2015.12.179

DO - 10.1016/j.proeng.2015.12.179

M3 - Conference Contribution

VL - 130

SP - 95

EP - 103

JO - Procedia Engineering

T2 - Procedia Engineering

JF - Procedia Engineering

SN - 1877-7058

ER -