Study of liquid weeping at a tapered orifice in a bubble column reactor by a computer-aided image analysis algorithm / Md. Iqbal Hossain in Industrial & engineering chemistry research, Vol. 49 N° 8 (Avril 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3840–3848 Titre : Study of liquid weeping at a tapered orifice in a bubble column reactor by a computer-aided image analysis algorithm Type de document : texte imprimé Auteurs : Md. Iqbal Hossain, Auteur ; Si Qi Pang, Auteur ; Qing Xi Pang, Auteur Année de publication : 2010 Article en page(s) : pp. 3840–3848 Langues : Anglais (eng) Mots-clés : Liquid Weeping Algorithm Résumé : Understanding the phenomenon of liquid weeping requires knowledge of the bubbling and weeping cycle. Hence, an image analysis algorithm is developed and subsequently coupled with high-speed imaging techniques to examine the different stages in the bubbling and weeping cycle automatically. The bubbling and weeping cycle is studied under various operating conditions, using the developed algorithm, coupled with high-speed imaging techniques and the pressure fluctuation measurement. The effect of orifice angle (where the orifice angle is a measure of the orifice taperness) on the liquid weeping rate is evaluated over a range of superficial orifice gas velocities and justified with the aid of the developed algorithm, coupled with high-speed imaging techniques. A gas distributor plate with negative angle orifices is recommended for improved operation of industrial bubble column reactors over the range of superficial orifice gas velocities considered in this study, because it substantially decreases the liquid weeping rate. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901516f [article] Study of liquid weeping at a tapered orifice in a bubble column reactor by a computer-aided image analysis algorithm [texte imprimé] / Md. Iqbal Hossain, Auteur ; Si Qi Pang, Auteur ; Qing Xi Pang, Auteur . - 2010 . - pp. 3840–3848. Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3840–3848 Mots-clés : Liquid Weeping Algorithm Résumé : Understanding the phenomenon of liquid weeping requires knowledge of the bubbling and weeping cycle. Hence, an image analysis algorithm is developed and subsequently coupled with high-speed imaging techniques to examine the different stages in the bubbling and weeping cycle automatically. The bubbling and weeping cycle is studied under various operating conditions, using the developed algorithm, coupled with high-speed imaging techniques and the pressure fluctuation measurement. The effect of orifice angle (where the orifice angle is a measure of the orifice taperness) on the liquid weeping rate is evaluated over a range of superficial orifice gas velocities and justified with the aid of the developed algorithm, coupled with high-speed imaging techniques. A gas distributor plate with negative angle orifices is recommended for improved operation of industrial bubble column reactors over the range of superficial orifice gas velocities considered in this study, because it substantially decreases the liquid weeping rate. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901516f

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