A phenomenological model for pressure drop, liquid holdup, and flow regime transition in gas-liquid trickle flow
✍ Scribed by R.A. Holub; M.P. Duduković; P.A. Ramachandran
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 467 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
A phenomenological, pore-scale, hydrodynamic model is developed for representation of the uniform, two-phase, gas-liquid cocurrent flow in the low interaction regime in trickle bed reactors. The model provides improved predictions for both the pressure drop and liquid holdup using the parameters obtained exclusively porn single phase f!ow data. In addition, a new criterion for prediction of trickle to pulsing flow regime transition is developed based on Kapitza's (1948) work on iaminarfilm stability.
Agreement with available data is good.
📜 SIMILAR VOLUMES
Trickle beds of I meter in length and resp. 5, 10 and 20cm in diameter were operated in the so-called pulsing flow regime. The packing was 2.5 rcsp. 4 mm Raschig rings. Air was taken as the gas phase. Several liquids were used. In this contribution we describe the transition from gas-continuous to p
Pressure drop and hqlud holdup for two-phase concurrent downward low m packed beds were correlated for various types of packmgs by takmg mto account two hydrodynanuc regnnes a poor and a h@ gas-bqlud mteraction regnne Foammg and non-foammg systems have been consldered In the poor mteractlon regune,