| Titre : |
Modeling for starve fed/flood fed mixing single-screw extruders |
| Type de document : |
texte imprimé |
| Auteurs : |
Krzysztof J. Wilczynski, Auteur ; A. Lewandowski, Auteur ; A. Nastaj, Auteur ; Krzysztof J. Wilczynski, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 82-91 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alliages polymères
Calcul
Eléments finis, Méthode des
Extrudeuse monovis
Matières plastiques -- Extrusion
Polyéthylène basse densité
Rhéologie
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
A composite computer model has been proposed for starve fed/flood fed mixing single screw extruders. The model for starve fed extrusion has been developed by combining a new FEM based melt conveying model with recently developed melting models. Mixing screw equipped with distributive toothed disc mixing element has been considered as an example for modeling. An extensive fully three-dimensional non-Newtonian FEM computations have been carried-out to simulate the melt flow in mixing elements. Screw pumping characteristics have been developed for the elements at various power law indices, and these have been implemented into the composite model of the process. Simulations have been performed for low density polyethylene (LDPE) at various operating conditions, both for starve fed and flood fed extrusion. Fill factor, pressure, temperature and melting profiles have been computed and verified experimentally. |
| Note de contenu : |
- Modeling
- FEM simulation
- Computation scheme
- Process simulations
- Experimental validation of the model |
| DOI : |
10.3139/217.3154 |
| En ligne : |
https://drive.google.com/file/d/1uq8f9Bqpf3KB3QKvCRIGo5ovDpUe3YI-/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25771 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 1 (03/2016) . - p. 82-91
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Modeling for starve fed/flood fed mixing single-screw extruders in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 1 (03/2016)
