Titel: THERMODYNAMIC MODELING FROM EXPERIMENTAL MEASUREMENTS
Abstract:
We are interested here in an air knife, a zinc wiping system at the heart of the process of galvanizing thin sheets.
The zinc pot or bath is a key and strategic element for the customer who needs a continuous process and must control his production costs.
The Clecim air knife makes it possible to control the thickness of zinc deposited and the homogeneity of the coating over the width and length of the steel strip.
The industrial challenge is the optimization of the zinc deposition, both to maintain the functionality of protection against corrosion but also to minimize the material deposited.
The objective of the presentation is to show how a pressure map was modeled according to different parameters in order to compare it to a finite element model.
the challenge to be met: we want to determine the maximum pressure (peak). However, we do not know a priori where it is located, the measurement pressure not making it possible to guarantee that the peak has indeed been found. It is therefore essential to model a curve and to deduce the maximum by calculation.
In order to achieve this objective, the following steps were taken:
• Carrying out measurements
• Modeling of each curve individually using a Gaussian
• Export of parameters (in order to calculate the peaks)
• Integration of calculation results in the original table
• Correction of measurement errors (position of the measurement point)
• Modeling of the peak of each curve according to the process parameters
• Creation of a new table from the model in order to create an animation
This analysis requires modeling in two stages:
1. Transformation of the measurements by a first modeling (Fit Curve - Gaussian Peak)
2. Modeling of the "Gaussian Peak" according to process parameters (Fit Model?)
