Effect of Inclination Angle and Flow Rate on the Heat Transfer During Bottom Jet Cooling of a Steel Plate

被引:31
作者
Chester, Noel L. [2 ]
Wells, Mary A. [1 ]
Prodanovic, Vladan [2 ]
机构
[1] Univ Waterloo, Dept Mech & Mechatron Engn, Waterloo, ON N2L 5B8, Canada
[2] Univ British Columbia, Ctr Met Proc Engn, Vancouver, BC V6T 1Z4, Canada
来源
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2012年 / 134卷 / 12期
基金
加拿大自然科学与工程研究理事会;
关键词
runout table; jet impingement boiling; bottom jet; steel cooling; SURFACE;
D O I
10.1115/1.4007127
中图分类号
O414.1 [热力学];
学科分类号
摘要
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. [DOI: 10.1115/1.4007127]
引用
收藏
页数:9
相关论文
共 26 条
[1]  
Beitelmal A. H., 1998, ASME INT MECH ENG C, V361, P219
[2]   The effect of inclination on the heat transfer between a flat surface and an impinging two-dimensional air jet [J].
Beitelmal, AH ;
Saad, MA ;
Patel, CD .
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2000, 21 (02) :156-163
[3]  
Boyer HE., 1995, Metals Handbook Desk Edition
[4]   A compensation method for the disturbance in the temperature field caused by subsurface thermocouples [J].
Caron, E. ;
Wells, M. A. ;
Li, D. .
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2006, 37 (03) :475-483
[5]   Rewetting temperatures and velocity in a quenching experiment [J].
Filipovic, J ;
Incropera, FP ;
Viskanta, R .
EXPERIMENTAL HEAT TRANSFER, 1995, 8 (04) :257-270
[6]   Jet impingement boiling from a circular free-surface jet during quenching: Part 1 - Single-phase jet [J].
Hall, DE ;
Incropera, FP ;
Viskanta, R .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2001, 123 (05) :901-910
[7]   Movement of maximum heat flux and wetting front during quenching of hot cylindrical block [J].
Hammad, J ;
Mitsutake, Y ;
Monde, M .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2004, 43 (08) :743-752
[8]  
Ishigai S., 1978, Sixth International Heat Transfer Conference, P445
[9]  
Kalinin E.K., 1987, ADV HEAT TRANSFER, VVolume 18, P241, DOI [10.1016/S0065-2717(08)70120-5, DOI 10.1016/S0065-2717(08)70120-5]
[10]  
KALININ EK, 1975, ADV HEAT TRANSFER, V11, P51