Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column

Equilibrium and rate of mixing of free flowing solid materials are found using gas fluidized bed. The solid materials were sand (size 0.7 mm), sugar (size0.7 mm) and 15% cast iron used as a tracer. The fluidizing gas was air with velocity ranged from 0.45-0.65 m/s while the mixing time was up...

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Autores principales:	Abbas H. Sulaymon, Ammar S. Abbas, Rasha H. Salman
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2010
Materias:	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/e96b1215d4e44cfba09cb75d1c78fe37
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spelling	oai:doaj.org-article:e96b1215d4e44cfba09cb75d1c78fe372021-12-02T07:59:01ZPrediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column1818-11712312-0789https://doaj.org/article/e96b1215d4e44cfba09cb75d1c78fe372010-12-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/509https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 Equilibrium and rate of mixing of free flowing solid materials are found using gas fluidized bed. The solid materials were sand (size 0.7 mm), sugar (size0.7 mm) and 15% cast iron used as a tracer. The fluidizing gas was air with velocity ranged from 0.45-0.65 m/s while the mixing time was up to 10 minutes. The mixing index for each experiment was calculated by averaging the results of 10 samples taken from different radial and axial positions in fluidized QVF column 150 mm ID and 900 mm height. The experimental results were used in solving a mathematical model of mixing rate and mixing index at an equilibrium proposed by Rose. The results show that mixing index increases with increasing air velocity and mixing time until it reaches an optimum value then decrease to an equilibrium value. The results also show the dependency of the mixing index on the particle size of the tracer component. The statistical analysis of the obtained theoretical mixing index versus the experimental mixing index shows that the standard error is 0.92 % (about 1 %) with the correlation coefficient of 0.9857 and the total residual of 0.002 for the ninth observation of the mixing index (theoretical versus experimental) over 95% confidence level. Abbas H. SulaymonAmmar S. AbbasRasha H. SalmanAl-Khwarizmi College of Engineering – University of BaghdadarticleChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 6, Iss 4 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Abbas H. Sulaymon Ammar S. Abbas Rasha H. Salman Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column
description	Equilibrium and rate of mixing of free flowing solid materials are found using gas fluidized bed. The solid materials were sand (size 0.7 mm), sugar (size0.7 mm) and 15% cast iron used as a tracer. The fluidizing gas was air with velocity ranged from 0.45-0.65 m/s while the mixing time was up to 10 minutes. The mixing index for each experiment was calculated by averaging the results of 10 samples taken from different radial and axial positions in fluidized QVF column 150 mm ID and 900 mm height. The experimental results were used in solving a mathematical model of mixing rate and mixing index at an equilibrium proposed by Rose. The results show that mixing index increases with increasing air velocity and mixing time until it reaches an optimum value then decrease to an equilibrium value. The results also show the dependency of the mixing index on the particle size of the tracer component. The statistical analysis of the obtained theoretical mixing index versus the experimental mixing index shows that the standard error is 0.92 % (about 1 %) with the correlation coefficient of 0.9857 and the total residual of 0.002 for the ninth observation of the mixing index (theoretical versus experimental) over 95% confidence level.
format	article
author	Abbas H. Sulaymon Ammar S. Abbas Rasha H. Salman
author_facet	Abbas H. Sulaymon Ammar S. Abbas Rasha H. Salman
author_sort	Abbas H. Sulaymon
title	Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column
title_short	Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column
title_full	Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column
title_fullStr	Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column
title_full_unstemmed	Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column
title_sort	prediction of equilibrium mixing index and optimum mixing time for three solid materials in fluidized column
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2010
url	https://doaj.org/article/e96b1215d4e44cfba09cb75d1c78fe37
work_keys_str_mv	AT abbashsulaymon predictionofequilibriummixingindexandoptimummixingtimeforthreesolidmaterialsinfluidizedcolumn AT ammarsabbas predictionofequilibriummixingindexandoptimummixingtimeforthreesolidmaterialsinfluidizedcolumn AT rashahsalman predictionofequilibriummixingindexandoptimummixingtimeforthreesolidmaterialsinfluidizedcolumn
_version_	1718398757591056384

Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column

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