The heat transfer that occurs during bottom water jet impingement on a hot steel plate has been investigated in terms of the effect inclination angle and flow rate. This research was carried out to develop quantitative knowledge of the heat transfer, which occurs on the runout table, a crucial component in the hot rolling production of advanced high strength steels. Industrially produced hot-rolled steel samples were instrumented with numerous subsurface thermocouples installed close to the quench surface. The experimental measurements were used in conjunction with an inverse heat conduction (IHC) model to quantify boiling characteristics as well as heat extraction histories for the different nozzle inclination angles and flow rates. It was found that, as nozzle inclination angle increased, the degree of asymmetry of the cooled region on the surface of the sample was increased and the overall rate of heat extraction decreased. The angle of inclination had a significant effect on overall heat extraction; a vertical nozzle was the most efficient from a perspective of heat transfer under the nozzle. As expected, as flow rates increased, the amount of heat energy extracted increased for all the conditions studied, regardless of the nozzle inclination.
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December 2012
This article was originally published in
Journal of Heat Transfer
Research-Article
Effect of Inclination Angle and Flow Rate on the Heat Transfer During Bottom Jet Cooling of a Steel Plate
Noel L. Chester,
Noel L. Chester
Centre for Metallurgical Process Engineering,
Vancouver, BC, V6T 1Z4,
University of British Columbia
,Vancouver, BC, V6T 1Z4,
Canada
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Mary A. Wells,
Mary A. Wells
1
Department of Mechanical and
Mechatronics Engineering,
Waterloo, ON, N2L 5B8,
e-mail: mawells@uwaterloo.ca
Mechatronics Engineering,
University of Waterloo
,Waterloo, ON, N2L 5B8,
Canada
e-mail: mawells@uwaterloo.ca
1Corresponding author.
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Vladan Prodanovic
Vladan Prodanovic
Centre for Metallurgical Process Engineering,
Vancouver, BC, V6T 1Z4,
University of British Columbia
,Vancouver, BC, V6T 1Z4,
Canada
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Noel L. Chester
Centre for Metallurgical Process Engineering,
Vancouver, BC, V6T 1Z4,
University of British Columbia
,Vancouver, BC, V6T 1Z4,
Canada
Mary A. Wells
Department of Mechanical and
Mechatronics Engineering,
Waterloo, ON, N2L 5B8,
e-mail: mawells@uwaterloo.ca
Mechatronics Engineering,
University of Waterloo
,Waterloo, ON, N2L 5B8,
Canada
e-mail: mawells@uwaterloo.ca
Vladan Prodanovic
Centre for Metallurgical Process Engineering,
Vancouver, BC, V6T 1Z4,
University of British Columbia
,Vancouver, BC, V6T 1Z4,
Canada
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received August 18, 2009; final manuscript received May 3, 2012; published online October 5, 2012. Assoc. Editor: Wilson K. S. Chiu.
J. Heat Transfer. Dec 2012, 134(12): 122201 (9 pages)
Published Online: October 5, 2012
Article history
Received:
August 18, 2009
Revision Received:
May 3, 2012
Citation
Chester, N. L., Wells, M. A., and Prodanovic, V. (October 5, 2012). "Effect of Inclination Angle and Flow Rate on the Heat Transfer During Bottom Jet Cooling of a Steel Plate." ASME. J. Heat Transfer. December 2012; 134(12): 122201. https://doi.org/10.1115/1.4007127
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