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Dispersed water and particulates in jet fuel / Alisdair Q. Clark in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5749-5765 Titre : Dispersed water and particulates in jet fuel : size analysis under operational conditions and application to coalescer disarming Type de document : texte imprimé Auteurs : Alisdair Q. Clark, Auteur Année de publication : 2011 Article en page(s) : pp. 5749-5765 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Coalescer  Fuel Résumé : Jet fuel cleanliness, in terms of dispersed water and dirt, is of paramount importance to ensure aviation safety. In this study, a process image analyzer has been used to determine size distributions of dispersed water droplets and real and standard test dust particulates in jet fuel, both in the laboratory and under representative ftill-scale operational conditions. The technique is also applied to monitoring water droplet coalescence in a filter-water separator in the presence of a surfactant known to cause coalescer disarming, again under simulated operational conditions. The measured water and dirt count (number) distributions are exclusively log-normal, whereas corresponding volume size distributions show deviations from log-normal behavior as a result of contributions from the relatively small number of larger particles or aggregated droplet clusters, highlighting the importance of volume-based size analyses. Distinguishing between dispersed water droplets and solid particles has been demonstrated quantitatively, using a cosolvent to solubilize the contribution from free water droplets. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128701 [article] Dispersed water and particulates in jet fuel : size analysis under operational conditions and application to coalescer disarming [texte imprimé] / Alisdair Q. Clark, Auteur . - 2011 . - pp. 5749-5765. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5749-5765 Mots-clés : Coalescer  Fuel Résumé : Jet fuel cleanliness, in terms of dispersed water and dirt, is of paramount importance to ensure aviation safety. In this study, a process image analyzer has been used to determine size distributions of dispersed water droplets and real and standard test dust particulates in jet fuel, both in the laboratory and under representative ftill-scale operational conditions. The technique is also applied to monitoring water droplet coalescence in a filter-water separator in the presence of a surfactant known to cause coalescer disarming, again under simulated operational conditions. The measured water and dirt count (number) distributions are exclusively log-normal, whereas corresponding volume size distributions show deviations from log-normal behavior as a result of contributions from the relatively small number of larger particles or aggregated droplet clusters, highlighting the importance of volume-based size analyses. Distinguishing between dispersed water droplets and solid particles has been demonstrated quantitatively, using a cosolvent to solubilize the contribution from free water droplets. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128701