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Mirjana S. Stamenić

EXPERIMENTAL RESEARCH OF PRESSURE DROP IN PACKED BEDS OF MONOSIZED SPHERES A NOVEL CORRELATION FOR PRESSURE DROP CALCULATION

ABSTRACT
Flow through packed beds of spheres is a complex phenomenon and it has been extensively studied. Although, there is many different correlations there is still no reliable universal equation for prediction of pressure drop. The paper presents the results of experimental research of pressure drop in packed bed of monosized spheres of three different diameters, 8, 11, and 13 mm set within cylindrical vessel of diameter dk = 74 mm, and two different heights of packed bed, hs = 300 and 400 mm. It has been proposed modification of widely used Ergun’s equation in the form of fp = [150+1.3•(Rep/(1-ε))]•(1-ε)2/(ε3×Rep) and new correlation fp = 1/[(27.4-25700•dh)/Rep+0.545+6.85•dh] for pressure drop calculation in simple and convenient form for hand and computer calculations. For total number of 362 experimental runs the correlation ratio of the modified Ergun’s relation was CR = 99.3%, and standard deviation SD = 12.2%, while novel relation has CR = 93.7% and SD = 5.4%. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 33049]
KEYWORDS
packed bed, monosized spheres, friction factor, pressure drop, bedporosity, laminar and turbulent flow
PAPER SUBMITTED: 2016-10-25
PAPER REVISED: 2016-11-25
PAPER ACCEPTED: 2016-12-19
PUBLISHED ONLINE: 2017-01-14
DOI REFERENCE: https://doi.org/10.2298/TSCI161025327S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Supplement 3, PAGES [S717 - S724]
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Experimental research of pressure drop in packed beds of monosized spheres a novel correlation for pressure drop calculation

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence