Picture of DNA strand

Pioneering chemical biology & medicinal chemistry through Open Access research...

Strathprints makes available scholarly Open Access content by researchers in the Department of Pure & Applied Chemistry, based within the Faculty of Science.

Research here spans a wide range of topics from analytical chemistry to materials science, and from biological chemistry to theoretical chemistry. The specific work in chemical biology and medicinal chemistry, as an example, encompasses pioneering techniques in synthesis, bioinformatics, nucleic acid chemistry, amino acid chemistry, heterocyclic chemistry, biophysical chemistry and NMR spectroscopy.

Explore the Open Access research of the Department of Pure & Applied Chemistry. Or explore all of Strathclyde's Open Access research...

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.

[img]
Preview
Text (Anwar-etal-FS2016-effect-high-temperature-structural-behaviour-metal-to-metal-seal)
Anwar_etal_FS2016_effect_high_temperature_structural_behaviour_metal_to_metal_seal.pdf
Accepted Author Manuscript

Download (1MB)| Preview

    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.