سال انتشار: ۱۳۹۳

محل انتشار: دومین کنفرانس بین المللی نفت، گاز و پتروشیمی

تعداد صفحات: ۶

نویسنده(ها):

m Esmaeilizadeh Davani – Department of Chemical Engineering, Faculty of Engineering, Quchan University of Advanced Technologies Engineering, Quchan, Iran,
j Mohebbi Najm Abad – Department of Computer Engineering, Quchan Branch, Islamic Azad University, Quchan, Iran
r Mollaabassi – Department of Chemical Engineering, Faculty of Engineering, Quchan University of Advanced Technologies Engineering, Quchan, Iran,

چکیده:

The determination of just suspended speed ( ) for non-Newtonian fluids in liquid-solid system is a problem of considerable industrial importance. No specific correlation to calculate minimum agitation speed of non-Newtonian fluid have been reported yet. This study concern estimating parameters of minimum impeller speed for non-Newtonian fluid in 10, 20 and 50wt% solids and 0.1, 0.2 and 0.33 clearance. New correlation of Herschel Bulkley fluids and pitched-blade Turbine is proposed. Using CMA-ES as a nonlinear optimization algorithm, investigated to optimize the Zwietering correlation. The results showed, the new correlations were in good agreement with experimental data.