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
الاستاذ الدكتور احمد كاظم حسين | Prof.Dr. Ahmed Kadhim Hussein | 5728
نوع النشر
مجلة علمية
المؤلفون بالعربي
رياض الطريحي , احمد كاظم حسين , حسين القيم , حسين علي محمد
المؤلفون بالإنجليزي
Riyadh S. Al-Turaihi , Ahmed Kadhim Hussein , Hussain H. Al-Kayiem and H. A. Mohammed
الملخص العربي
التحليل التجريبي لمواد صلبه متعددة في عمود متميع
الملخص الانجليزي
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.
تاريخ النشر
05/07/2013
الناشر
TextRoad Publication
رقم المجلد
3
رقم العدد
7
ISSN/ISBN
2090-4304
رابط DOI
www.textroad.com
الصفحات
293-304
رابط الملف
تحميل (81 مرات التحميل)
الكلمات المفتاحية
جريان ثنائي الطور
رجوع