A Novel Heat Transfer Coefficient Identification Methodology for the Profile Extrusion Calibration Stage

Filipe Marques (1) , Stéphane Clain (2) , Gaspar Machado (1) , Bruno Martins (3) , Olga Sousa Carneiro (3) , Miguel João Nóbrega (3)

1 CMAT - Centro de Matemática [Minho]
2 IMT - Institut de Mathématiques de Toulouse UMR5219
3 IPC - Institute for Polymers and Composites

A new method to compute heat transfer coefficients of the profile extrusion process calibration stage, in conjunction with a prototype calibration system [1], is proposed. The methodology involves two major ingredients: a numerical modeling code and a fitting procedure. The code, based on the Finite Volume Method, computes the steady-state solution for the heat transfer problem. The software carefully handles discontinuous solutions as well as discontinuities of the velocity and the material characteristics. Fitting procedure introduces alternative algorithms we have tested and assessed in [2]. A real case study demonstrates the advantages of using the new proposed methodology when compared with the previously applied [1].

Mots clés: Profile extrusion cooling stage; heat transfer coefficient identification; fitting; finite volume method; polymer flow

Domaines: Analyse numérique [math.NA]

Filipe Marques, Stéphane Clain, Gaspar Machado, Bruno Martins, Olga Sousa Carneiro, et al.. A Novel Heat Transfer Coefficient Identification Methodology for the Profile Extrusion Calibration Stage. Applied Thermal Engineering, 2016, 103, pp.102-111. ⟨10.1016/j.applthermaleng.2016.04.013⟩. ⟨hal-01251310⟩