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HORSKÝ, J. MORAVEC, R. BLAZEK, K. GUZEJ, M.
Original Title
THE EFFECT OF SPRAY WATER TEMPERATURE ON SECONDARY COOLING SPRAY HEAT TRANSFER COEFFICIENTS AND METHODS FOR IMPLEMENTING THE EFFECT IN A DYNAMIC COOLING CONTROL MODEL
Type
conference paper
Language
English
Original Abstract
Dynamic secondary cooling models developed at ArcelorMittal Global R&D use online calculated surface temperatures at various slab positions to adjust secondary cooling water based on aim surface temperatures. The latest development for this model is full implementation of experimentally measured heat transfer coefficients determined as a function of spray water volume, position under the spray nozzle and slab surface temperature. Water inlet temperature can have a significant influence on the heat transfer coefficient and hence cooling efficiency of the sprays. The Heat Transfer and Fluid Flow Laboratory of Brno Technical University (Brno) conducted experiments to determine the effect of the incoming spray water temperature on the HTC. They tested two different nozzles, one hydraulic and the other air mist. The incoming spray temperatures were 10, 20, 30, 50, and 70 degree Celsius.
Keywords
Solidification model, Slab surface temperature, Heat transfer coefficients, Secondary cooling
Authors
HORSKÝ, J.; MORAVEC, R.; BLAZEK, K.; GUZEJ, M.
RIV year
2014
Released
23. 6. 2014
Publisher
ASMET
Location
Graz, Austria
ISBN
978-3-200-03664-2
Book
Proceedings - 8th European Continuous Casting Conference
Pages from
1
Pages to
10
Pages count
BibTex
@inproceedings{BUT108073, author="Jaroslav {Horský} and Rudolf {Moravec} and Kenneth {Blazek} and Michal {Guzej}", title="THE EFFECT OF SPRAY WATER TEMPERATURE ON SECONDARY COOLING SPRAY HEAT TRANSFER COEFFICIENTS AND METHODS FOR IMPLEMENTING THE EFFECT IN A DYNAMIC COOLING CONTROL MODEL", booktitle="Proceedings - 8th European Continuous Casting Conference", year="2014", pages="1--10", publisher="ASMET", address="Graz, Austria", isbn="978-3-200-03664-2" }