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Communication Dans Un Congrès Année : 2021

Interest of an Annular Geometry Compared to Cylindrical One in the Thermo-Rheological Analysis of a Polymer Flow

Qiao Lin
Nadine Allanic
Pierre Mousseau
Yves Béreaux
Manuel Girault

Résumé

The need for process monitoring on a polymer production line is increasing, especially in the face of new generation materials. In this paper, an analytical and numerical study is carried out to examine the possibility to measure the polymer's temperature increasing all along the annular channel due to the viscous dissipation in steady state. The results show that the annular geometry contributes to a high concentration of viscous dissipation at the central axis, compared to a cylindrical geometry subjected to the same external mechanical power. In addition, under the production conditions, the polymer flow with a large Graetz number isolates the central axis from external thermal disturbances. It is thus possible to measure robustly in the center of the flow the temperature variation with respect to the change in thermorheological parameters, which opens up new perspectives for an in-line/on-line characterization method.
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Dates et versions

hal-03452598 , version 1 (27-11-2021)

Identifiants

  • HAL Id : hal-03452598 , version 1

Citer

Qiao Lin, Nadine Allanic, Rémi Deterre, Pierre Mousseau, Yves Béreaux, et al.. Interest of an Annular Geometry Compared to Cylindrical One in the Thermo-Rheological Analysis of a Polymer Flow. 36th International Conference of the Polymer Processing Society, Polymer Processing Society, Sep 2021, Montréal, Canada. ⟨hal-03452598⟩
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