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Essais De Fabrication De Granulés De Provende Avec Un Pelletiseur A Pédales
Abstract
Résumé : Cette étude vise à modéliser et à prédire le rendement de production d’un pelletiseur de provende à pédales à partir de paramètres mécaniques et de formulation. Les variables étudiées incluent la vitesse de rotation de la matrice, la pression à appliquer, le taux d’humidité et le type de provende. Le dispositif expérimental comprend un plan factoriel complet avec 72 échantillons, testés à trois vitesses (80, 120 et 150 tr/min), deux taux d’humidité et trois niveaux de pression. L’analyse statistique, réalisée à l’aide du logiciel Minitab 18, a permis d’établir un modèle de régression multiple de forme :
Les résultats montrent que la vitesse de rotation exerce l’influence la plus significative (p < 0,001) sur le rendement, avec un coefficient de détermination global R² = 98,35 %, indiquant un excellent ajustement du modèle. La pression et l’humidité contribuent positivement mais de façon secondaire. Ces résultats confirment l’importance d’une optimisation conjointe des paramètres opératoires pour améliorer la performance du pelletiseur et la qualité des granulés produits.
Mots clés : Pelletiseur de provende, Rendement de production, Régression linéaire, PressionKeywords
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DOI: http://dx.doi.org/10.52155/ijpsat.v54.1.7665
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