عنوان المقالة:التحليل التجريبي لمواد صلبه متعددة في عمود متميع Experimental Investigation of Various Solid Particle Materials on the Steady State Gas-Solid Fluidized Bed System
رياض الطريحي , احمد كاظم حسين , حسين القيم , حسين علي محمد
English Authors
Riyadh S. Al-Turaihi , Ahmed Kadhim Hussein , Hussain H. Al-Kayiem and H. A. Mohammed
Abstract
التحليل التجريبي لمواد صلبه متعددة في عمود متميع
Abstract
The present study provides a comprehensive experimental work about fluidized bed gas-solid system
characteristics by using different solid particles. Naphthalene, silica gel and sand (197 μm diameter) are
utilized as a solid particles while air is used for fluidization. An experimental rig is build to test the various
solid particles and to establish a good description of flow and heat transfer patterns for the fluidized bed
gas-solid system. Based on the experimental tests, it is found that the solid particle type has a significant
influence on the gas-solid flow dynamics. The experimental tests are performed for various fluidized bed
velocities ( 0.8 , 1.2 and 1.6 m/sec ) and when the heat fluxes are varied as 80 , 120 and 160 W
respectively. Experimental measurements are carried out under steady state situation. Depending on the
experimental results , it can be concluded that sand solid particles are better than silica gel and naphthalene
solid particles for heat transfer enhancement. Also, it can found for naphthalene , silica gel and sand solid
particles that as the fluidized bed velocity and heat flux increase the temperature distribution along the
fluidization column increases. Moreover, an empirical equation based on the experimental measurements
which linking between Nusselt number (Nu) , Froude number (Fr) and Reynolds number (Re) is suggested.
Comparisons with previously published works on gas-solid fluidized bed system are performed and good
agreements between the results are observed.
الاستاذ الدكتور احمد كاظم حسين | Prof.Dr. Ahmed Kadhim Hussein | 5658