Transformation of local bubble rise velocity measurements to global results: Shown by a Monte Carlo simulation of a fluidized bed. (April 2015)

• Record Type: Journal Article
• Authors: Maurer, Simon; Rüdisüli, Martin; Teske, Sinan L.; Schildhauer, Tilman J.; van Ommen, J. Ruud; Biollaz, Serge M.A.; Wokaun, Alexander
• Is Part Of: International journal of multiphase flow. Volume 70(2015)
• Page Start: 89
• Page End: 95
• Publication Date: 2015-04
• Subjects: Monte Carlo simulation -- Bubble rise velocity -- Back transformation -- Local measurement -- Fluidized bed -- Pierce probability; Multiphase flow -- Periodicals; Écoulement polyphasique -- Périodiques; Multiphase flow; Periodicals; 620.1064
• DOI: 10.1016/j.ijmultiphaseflow.2014.11.008
• Languages: English
• ISSNs: 0301-9322

Abstract

Highlights: Discussion of the bias in local bubble rise velocity measurements. Successful transformation of local to global bubble rise velocity. Monte Carlo model for simulation of bubbles in a fluidized bed. Abstract: To design bubbling fluidized bed reactors and study chemical reactions, the knowledge of hydrodynamic properties, such as bubble size, rise velocity and hold-up is of importance. Local measurements of those properties are valuable, but do not automatically reflect the properties of the full bed. In the manuscript a method based on Bayes' theorem is developed, which helps to transform local bubble rise velocity measurements into a global result. The transformation method was tested by means of a Monte Carlo simulation.