A generalized analytical energy balance model for evaluating agglomeration from a binary collision of wet particles
Rattachement africain : ca, cz, us. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Agglomeration of wet particles, i.e., particles coated with a thin liquid layer, is a common phenomenon in many processes like fluidized bed combustion of low rank fuels. The availability of an agglomeration model that can evaluate the outcome of a binary collision between wet particles differing in solid particle properties, liquid layer thicknesses, and initial collision (impact) speeds is essential for obtaining a comprehensive understanding on the existing processes experiencing wet particle agglomeration or for a successful development of new processes with high chances of wet particle agglomeration. This study presents a generalized agglomeration model on the basis of energy conservation before and after collision when colliding wet particles may differ in solid particle properties, liquid layer thicknesses, and impact speeds. The model was established based on the approximate values of energy losses that may happen during the collision. It incorporates body forces, solid-solid contacting, liquid capillary, and viscous contributions, as well as the liquid bridge volume effect. Predictions of the new model for collision outcomes of identical wet particles were like those from an analytical energy balance model developed recently by the group for identical wet particles. We also validated the new model by experimental data from literature. The results of a collision direction analysis indicated that the direction often has a minimal effect on the collision outcome in many practical scenarios. The results of Monte Carlo uncertainty analyses with the new model revealed that proper estimations of impact speed, under capillary limiting conditions, and thickness of coating layers and asperity heights, under viscous limiting conditions, are critical for the realistic prediction of collision outcomes at impact speeds close to critical impact speed, i.e., the minimum particle speed required for the particles to rebound.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- A generalized analytical energy balance model for evaluating agglomeration from a binary collision of wet particles
- Date Crossref
- 01/04/2024
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Natural Resources Canada pays non établi dans la noticeOrganisme public
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Advanced Engineering (Czechia) pays non établi dans la noticeEntreprise
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Polytechnique Montréal pays non établi dans la noticeUniversité ou école supérieure
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United States Department of Energy pays non établi dans la noticeOrganisme public
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Morgantown High School pays non établi dans la noticeUniversité ou école supérieure
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National Energy Technology Laboratory pays non établi dans la noticeStructure de recherche
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Process Engineering Advanced Research Lab pays non établi dans la noticeStructure de recherche
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, pays non établi dans la noticeInstitution
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1 Haanel Drive pays non établi dans la noticeInstitution
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C.P. 6079 pays non établi dans la noticeInstitution
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CanmetENERGY pays non établi dans la noticeInstitution
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Department of Chemical Engineering pays non établi dans la noticeInstitution
Natural Resources Canada, Advanced Engineering (Czechia) et Polytechnique Montréal, avec 9 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.