Bubbles Coalescence Frequency and Transition Concentration in Bubble Column

Bubbles coalescence frequency and the transition concentration in a dispersion column were studied experimentally by using ethanol-water mixture as a liquid phase and air as a gas phase. The study was devoted to express the effect of the liquid properties on the performance of the dispersion column,...

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Main Authors: Fadi Z. Hanna, Ihsan B. Hamawand
Format: Article
Language:English
Published: Tikrit University 2006-12-01
Series:Tikrit Journal of Engineering Sciences
Subjects:
Online Access:https://tj-es.com/ojs/index.php/tjes/article/view/744
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author Fadi Z. Hanna
Ihsan B. Hamawand
author_facet Fadi Z. Hanna
Ihsan B. Hamawand
author_sort Fadi Z. Hanna
collection DOAJ
description Bubbles coalescence frequency and the transition concentration in a dispersion column were studied experimentally by using ethanol-water mixture as a liquid phase and air as a gas phase. The study was devoted to express the effect of the liquid properties on the performance of the dispersion column, and the experimental work was designed for this purpose, where the range of weight percent of ethanol in water, (0.1-0.7) Wt%, and the range of superficial gas velocity of air, (2.5-30) mm/s. The experimental runs were planned using the central composite routable design method. The experimental data obtained agreed quite well with a polynomial type of correlations by using computer program. The experimental data shows that the values of bubble coalescence decrease with increasing superficial gas velocity of air, and ethanol transition concentration was successfully correlated as a function of the superficial gas velocity of air, ct= 0.158214 − 0.010849Ug + 0.00045Ug2 − 0.000008Ug3 . This equation gives mean deviation of 10.393%.
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spelling doaj.art-71ee27c072384157bd634822684678c12023-07-12T12:56:30ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892006-12-0113410.25130/tjes.13.4.04Bubbles Coalescence Frequency and Transition Concentration in Bubble ColumnFadi Z. Hanna0Ihsan B. Hamawand1Chemical Eng. Dept., University of Technology, IraqChemical Eng. Dept., University of Technology, IraqBubbles coalescence frequency and the transition concentration in a dispersion column were studied experimentally by using ethanol-water mixture as a liquid phase and air as a gas phase. The study was devoted to express the effect of the liquid properties on the performance of the dispersion column, and the experimental work was designed for this purpose, where the range of weight percent of ethanol in water, (0.1-0.7) Wt%, and the range of superficial gas velocity of air, (2.5-30) mm/s. The experimental runs were planned using the central composite routable design method. The experimental data obtained agreed quite well with a polynomial type of correlations by using computer program. The experimental data shows that the values of bubble coalescence decrease with increasing superficial gas velocity of air, and ethanol transition concentration was successfully correlated as a function of the superficial gas velocity of air, ct= 0.158214 − 0.010849Ug + 0.00045Ug2 − 0.000008Ug3 . This equation gives mean deviation of 10.393%. https://tj-es.com/ojs/index.php/tjes/article/view/744Dispersion columnbubble coalescencetransition concentration
spellingShingle Fadi Z. Hanna
Ihsan B. Hamawand
Bubbles Coalescence Frequency and Transition Concentration in Bubble Column
Tikrit Journal of Engineering Sciences
Dispersion column
bubble coalescence
transition concentration
title Bubbles Coalescence Frequency and Transition Concentration in Bubble Column
title_full Bubbles Coalescence Frequency and Transition Concentration in Bubble Column
title_fullStr Bubbles Coalescence Frequency and Transition Concentration in Bubble Column
title_full_unstemmed Bubbles Coalescence Frequency and Transition Concentration in Bubble Column
title_short Bubbles Coalescence Frequency and Transition Concentration in Bubble Column
title_sort bubbles coalescence frequency and transition concentration in bubble column
topic Dispersion column
bubble coalescence
transition concentration
url https://tj-es.com/ojs/index.php/tjes/article/view/744
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