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Viscosity correction factor for safety relief valves

✍ Scribed by Ron Darby; Kamyar Molavi

Book ID
105358829
Publisher
American Institute of Chemical Engineers
Year
1997
Tongue
English
Weight
389 KB
Volume
16
Category
Article
ISSN
1066-8527

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✦ Synopsis

Abstract

A commercial computation fluid dynamics (CFD) code was used to compute the discharge coefficient for a representative relief valve configuration and various nozzle sizes, for Newtonian liquids with various viscosities. The results are compared with values of the viscosity correction factor, K~v~, from the API Recommended Practice 520, and equations are proposed to represent both the K~v~ curve and the computational results in a correspondings form, which also includes the effect of the dimensionless nozzle diameter on the valve K~v~.

πŸ“œ SIMILAR VOLUMES

A theoretical viscosity correction facto
A theoretical viscosity correction factor for heat transfer and friction in pipe flow
✍ R.W. Field πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 442 KB

By coupling a consideration of heat transfer into a region of constant shear stress with a temperature-dependent viscosity, it has been shown that viscosity correction ratios of the form introduced by Sieder and Tate [namely (pJpw)"] have a theoretical justification. The index n depends upon whether