Influence of surface tension on pressure drop of sieve plates

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A new general expression is developed for the hydrodynamic design of sieve plates, namely for the calculation of total pressure drop and its components. The division of total pressure drop into part pressure drops is theoretically based on the momentum theory and fundamental laws of fluid flow. Applying and developing the results of Haq and Davy, and Haselden, it was established: The partial pressure drops-except that of wet plate pressure drop-are practically independent of surface tension, liquid density and viscosity. The wet plate pressure drop is a parabolic function of gas velocity. It is practically independent of liquid density and viscosity in a wide range, but strongly depends on surface tension. In conclusion a general expression is presented for total pressure drop of sieve plates, which is theoretically established, valid in all the three foaming regimes and expresses the influence of surface tension.

Original languageEnglish
Pages (from-to)287-294
Number of pages8
JournalChemical Engineering Research and Design
Volume69
Issue number4
Publication statusPublished - Jul 1991

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Sieves
Pressure drop
Surface tension
Viscosity of liquids
Density of liquids
Partial pressure
Flow of fluids
Momentum
Hydrodynamics
Gases

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Influence of surface tension on pressure drop of sieve plates. / Békássy-Molnár, E.; Mustafa, H.

In: Chemical Engineering Research and Design, Vol. 69, No. 4, 07.1991, p. 287-294.

Research output: Contribution to journalArticle

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