Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Multiphase Science and Technology
SJR: 0.124 SNIP: 0.222 CiteScore™: 0.26

ISSN Imprimer: 0276-1459
ISSN En ligne: 1943-6181

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v27.i2-4.60
pages 187-202

EFFECT OF AN ACOUSTIC FIELD ON HYDRODYNAMICS OF A BINARY MIXTURE OF POWDERS

Akash Langde
Anjuman College of Engineering and Technology, Nagpur, Maharashtra, India
R. L. Sonolikar
Laxminarayan Institute of Technology, Nagpur, Maharashtra, India
D. J. Tidke
G.H. Raisoni College of Engineering, Nagpur, Maharashtra, India

RÉSUMÉ

Multiple particulate phase hydrodynamics is important in many industrial applications that involve segregation or mixing processes. Conventional fluidization is often impossible because the interparticle attraction is large and use of acoustic field is considered as the best option to overcome the problem specifically in mineral classification, elutriation, sedimentation, crystallization, and fluid bed leaching, just to name a few. This paper presents findings of an investigation to increase the flowability of extremely cohesive powders and study the effect of acoustic intensity and frequency on the behavior of the mixture of binary material. It also presents the effect of sound waves on the minimum fluidization velocity, bed expansion, and minimum bubbling velocity. Experiments revealed that the minimum fluidization velocity (Umfs) and minimum bubbling velocity (Umbs) with sound force first decrease and then increase with increase in bed mass fractions, which were varied from 20 to 80%. It is also seen that bed height increases with an increase in mass fraction in the presence of acoustic field.


Articles with similar content:

Study of the Effect of Heat and Mass Transfer on Propagation of Pulse Disturbances in Vapor-Liquid Bubble Media
Heat Transfer Research, Vol.32, 2001, issue 4-6
A. Mamytov, A. A. Gubaidullin
Fundamentals of Fluidization
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 1986, issue
W. P. M. van Swaaij, W. Prins
Study of the Effect of Heat and Mass Transfer on Propagation of Pulse Disturbances in Vapor-Liquid Bubble Media
Heat Transfer Research, Vol.33, 2002, issue 5&6
A. Mamytov, A. A. Gubaidullin
Fluidized Bed Combustors
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 1986, issue
M. Valk
ENHANCEMENT AND CONTROL OF LOCAL HEAT TRANSFER COEFFICIENTS BY LOADING SOFT MAGNETIC PARTICLES IN A GAS FLOW
International Heat Transfer Conference 10, Vol.15, 1994, issue
Koichi Hishida, Masanobu Maeda, Hiroshi Kishizawa, Yohei Sato