Datum
2021-09-24Metadata
Zur Langanzeige
Aufsatz
Efficiency and agility of a liquid CO2 cooling system for molten metal systems
Zusammenfassung
In this study investigations on the efficiency and agility of a liquid CO2 cooling system, using expansion bores fed with liquid CO2 by capillary tubes, to form a thermal seal in a magnesium hot runner channel are performed in a test rig. Via temperature measurements the performance of different sets of cooling parameters is tested and cooling rates are identified depended on a varying nozzle geometry. To validate the measurements, the tests are modelled in a thermal simulation study. The applicability of the liquid CO2 cooling was demonstrated for engineering purposes. Adequate process times could be achieved while using a 16 mm diameter as annular gap, which results in cooling rates up to 4.8 ◦C/s. The tests were validated by a simulation model.
The simulations illustrate the inner processes of the test rig and the comparison of temperature curves of the cooling process show a good correlation.
The simulations illustrate the inner processes of the test rig and the comparison of temperature curves of the cooling process show a good correlation.
Zitierform
In: Case Studies in Thermal Engineering Volume 28 (December 2021) (2021-09-24) eissn:2214-157XFörderhinweis
Gefördert durch den Publikationsfonds der Universität KasselZitieren
@article{doi:10.17170/kobra-202201215580,
author={Glück, Jakob and Schilling, Andreas and Schwenke, Niklas and Fros, Adam and Fehlbier, Martin},
title={Efficiency and agility of a liquid CO2 cooling system for molten metal systems},
journal={Case Studies in Thermal Engineering},
year={2021}
}
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2022-02-02T14:04:09Z 2022-02-02T14:04:09Z 2021-09-24 doi:10.17170/kobra-202201215580 http://hdl.handle.net/123456789/13585 Gefördert durch den Publikationsfonds der Universität Kassel eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ CO2 cooling Magnesium Hot runner Thermal seal Simulation Cooling rates 600 Efficiency and agility of a liquid CO2 cooling system for molten metal systems Aufsatz In this study investigations on the efficiency and agility of a liquid CO2 cooling system, using expansion bores fed with liquid CO2 by capillary tubes, to form a thermal seal in a magnesium hot runner channel are performed in a test rig. Via temperature measurements the performance of different sets of cooling parameters is tested and cooling rates are identified depended on a varying nozzle geometry. To validate the measurements, the tests are modelled in a thermal simulation study. The applicability of the liquid CO2 cooling was demonstrated for engineering purposes. Adequate process times could be achieved while using a 16 mm diameter as annular gap, which results in cooling rates up to 4.8 ◦C/s. The tests were validated by a simulation model. The simulations illustrate the inner processes of the test rig and the comparison of temperature curves of the cooling process show a good correlation. open access Glück, Jakob Schilling, Andreas Schwenke, Niklas Fros, Adam Fehlbier, Martin doi:10.1016/j.csite.2021.101485 Kühlsystem Kohlendioxid Versiegelung <Oberflächenbehandlung> publishedVersion eissn:2214-157X Case Studies in Thermal Engineering Volume 28 (December 2021) false 101485
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