Capacity testing and local flow analysis of geometrically complex trims installed within a commercial control valve

Taimoor Asim, Rakesh Mishra, Matthew Charlton, Antonio Carlos Oliveira

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Industrial control valves often handle flows with very high pressure drops (conditions often referred to as severe service). In order to cope with these pressure drops, geometrically complex valve trims with many stages of pressure loss, are designed to prevent undesirable side effects such as cavitation, excessive noise or erosion. These effects are maintained under control by gradually decreasing the pressure in each stage of pressure letdown of the trim. There are many different product designs for control valve trims produced by different manufacturers. One such design uses cylindrical obstructions in the flow field to control the pressure drop. The design of these trims is based on their capacity (Cv) values. With the advent of advanced computational tools, such as Computational Fluid Dynamics, it has become possible to test these trims in flow conditions which are difficult to achieve in laboratories, but do exist in real time functioning of the trims. Hence, this study presents capacity testing and local flow analysis of a complex geometry trim, installed within a commercial control valve for severe service. The results show that the capacity of this particular design of trim decreases as the valve opening position decreases.

LanguageEnglish
Title of host publicationProceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015
PublisherSpringer Science and Business Media, LLC
Pages431-438
Number of pages8
Volume185
ISBN (Electronic)9783319306025
ISBN (Print)9783319306001
DOIs
Publication statusPublished - 2016
Event5th International Conference on Jets, Wakes and Separated Flows - Stockholm, Sweden
Duration: 15 Jun 201518 Jun 2015
Conference number: 5

Conference

Conference5th International Conference on Jets, Wakes and Separated Flows
Abbreviated titleICJWSF2015
CountrySweden
CityStockholm
Period15/06/1518/06/15

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control valves
pressure drop
computational fluid dynamics
cavitation flow
erosion
flow distribution
products
geometry

Cite this

Asim, T., Mishra, R., Charlton, M., & Oliveira, A. C. (2016). Capacity testing and local flow analysis of geometrically complex trims installed within a commercial control valve. In Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015 (Vol. 185, pp. 431-438). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-319-30602-5_54
Asim, Taimoor ; Mishra, Rakesh ; Charlton, Matthew ; Oliveira, Antonio Carlos. / Capacity testing and local flow analysis of geometrically complex trims installed within a commercial control valve. Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015. Vol. 185 Springer Science and Business Media, LLC, 2016. pp. 431-438
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Asim, T, Mishra, R, Charlton, M & Oliveira, AC 2016, Capacity testing and local flow analysis of geometrically complex trims installed within a commercial control valve. in Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015. vol. 185, Springer Science and Business Media, LLC, pp. 431-438, 5th International Conference on Jets, Wakes and Separated Flows, Stockholm, Sweden, 15/06/15. https://doi.org/10.1007/978-3-319-30602-5_54

Capacity testing and local flow analysis of geometrically complex trims installed within a commercial control valve. / Asim, Taimoor; Mishra, Rakesh; Charlton, Matthew; Oliveira, Antonio Carlos.

Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015. Vol. 185 Springer Science and Business Media, LLC, 2016. p. 431-438.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Asim T, Mishra R, Charlton M, Oliveira AC. Capacity testing and local flow analysis of geometrically complex trims installed within a commercial control valve. In Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015. Vol. 185. Springer Science and Business Media, LLC. 2016. p. 431-438 https://doi.org/10.1007/978-3-319-30602-5_54