Experimental and Numerical Investigations into Heat Transfer Using a Jet Cooler in High-Pressure Die Casting

During high-pressure die casting, a significant amount of heat is dissipated via the liquid-cooled channels in the die. The jet cooler, also known as the die insert or bubbler, is one of the most commonly used cooling methods. Nowadays, foundries casting engineered products rely on numerical simulat...

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Bibliographic Details
Published in:Journal of Manufacturing and Materials Processing 2023-12, Vol.7 (6), p.212
Main Authors: Bohacek, Jan, Mraz, Krystof, Krutis, Vladimir, Kana, Vaclav, Vakhrushev, Alexander, Karimi-Sibaki, Ebrahim, Kharicha, Abdellah
Format: Article
Language:English
Subjects:
Alloys
Aluminum
bayonet
Boundary conditions
bubbler
Casting
Conduction heating
Conductive heat transfer
Cooling
die casting
die insert
Foundries
Heat transfer
Heat transfer coefficients
High pressure
Investigations
jet cooler
jet cooling
Pressure die casting
Simulation
Spatial distribution
Temperature
Thermocouples
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Summary:During high-pressure die casting, a significant amount of heat is dissipated via the liquid-cooled channels in the die. The jet cooler, also known as the die insert or bubbler, is one of the most commonly used cooling methods. Nowadays, foundries casting engineered products rely on numerical simulations using commercial software to determine cooling efficiency, which requires precise input data. However, the literature lacks sufficient investigations to describe the spatial distribution of the heat transfer coefficient in the jet cooler. In this study, we propose a solver using the open-source CFD package OpenFOAM and free library for nonlinear optimization NLopt for the inverse heat conduction problem that returns the desired distribution of the heat transfer coefficient. The experimental temperature measurements using multiple thermocouples are considered the input data. The robustness, efficiency, and accuracy of the model are rigorously tested and confirmed. Additionally, temperature measurements of the real jet cooler are presented.
ISSN:2504-4494
2504-4494
DOI:10.3390/jmmp7060212