The effect of staggered-array water impinging jets on boiling heat transfer was investigated by a simultaneous measurement between boiling visualization and heat transfer characteristics. The boiling phenomena of staggered-array impinging jets on hot steel plate were visualized by 4K UHD video camera. The surface temperature and heat flux on hot steel plate was determined by solving 2-D inverse heat conduction problem, which was measured by the flat-plate heat flux gauge. The experiment was made at jet Reynolds number of Re = 5,000 and the jet-to-jet distance of staggered-array jets of S/Dn = 10. Complex flow interaction of staggered-array impinging jets exhibited hexagonal flow pattern like as honey-comb. The calculated surface heat transfer profiles show a good agreement with the corresponding boiling visualization. The peak of heat flux accords with the location which nucleate boiling is occurred at. In early stage, the positions of maximum heat flux locate at the stagnation point of each jet as the relatively low surface temperature is shown at their positions. At the elapsed time of 10 s, the flat shape of heat flux profile is formed in the hexagonal area where the interacting flow uniformly cools down the wetted surface. After that, the wetted area continuously enlarges with time and the maximum heat flux is observed at its peripheral. These results point out that the flow interaction of staggered-array jets effectively cools down the closer area around jets and also show an expansion of nucleate boiling and suppression of film boiling during water jet cooling on hot steel plate. [This work was supported by the KETEP grant funded by the Ministry of Trade, Industry & Energy, Korea (Grant No. 20142010102910).]
Skip Nav Destination
Article navigation
Photo Gallery
Boiling Heat Transfer Characteristics of Staggered-array Water Impinging Jets on Hot Steel Plate
Sang Gun Lee,
Sang Gun Lee
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
sggwc4ever@gmail.com
sggwc4ever@gmail.com
Search for other works by this author on:
Jin Sub Kim,
Jin Sub Kim
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
jskim129@kimm.re.kr
jskim129@kimm.re.kr
Search for other works by this author on:
Dong Hwan Shin,
Dong Hwan Shin
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
dhshin@kimm.re.kr
dhshin@kimm.re.kr
Search for other works by this author on:
Jungho Lee
Jungho Lee
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
jungho@kimm.re.kr
jungho@kimm.re.kr
Search for other works by this author on:
Sang Gun Lee
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
sggwc4ever@gmail.com
sggwc4ever@gmail.com
Jin Sub Kim
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
jskim129@kimm.re.kr
jskim129@kimm.re.kr
Dong Hwan Shin
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
dhshin@kimm.re.kr
dhshin@kimm.re.kr
Jungho Lee
Department of Energy Conversion Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, Korea
jungho@kimm.re.kr
jungho@kimm.re.kr
1Corresponding author.
J. Heat Transfer. Mar 2018, 140(3): 030903
Published Online: February 16, 2018
Article history
Received:
November 27, 2017
Revised:
December 25, 2017
Citation
Lee, S. G., Kim, J. S., Shin, D. H., and Lee, J. (February 16, 2018). "Boiling Heat Transfer Characteristics of Staggered-array Water Impinging Jets on Hot Steel Plate." ASME. J. Heat Transfer. March 2018; 140(3): 030903. https://doi.org/10.1115/1.4039168
Download citation file:
Get Email Alerts
Cited By
Estimation of thermal emission from mixture of CO2 and H2O gases and fly-ash particles
J. Heat Mass Transfer
Non-Classical Heat Transfer and Recent Progress
J. Heat Mass Transfer
Related Articles
Numerical Simulation of Evaporating Two-Phase Flow in a High-Aspect-Ratio Microchannel with Bends
J. Heat Transfer (August,2017)
Flow Visualization of Axisymmetric Impinging Jet on a Concave Surface
J. Heat Transfer (August,2018)
Visual Observation of Circular Water Jet Impingement Boiling on Stationary Hot Steel Plate
J. Heat Transfer (August,2015)
Subcooled Flow Film Boiling Across a Horizontal Cylinder: Part II—Comparison to Experimental Data
J. Heat Transfer (February,1995)
Related Proceedings Papers
Related Chapters
Liquid Cooled Systems
Thermal Management of Telecommunication Equipment, Second Edition
Thermal Design Guide of Liquid Cooled Systems
Thermal Design of Liquid Cooled Microelectronic Equipment
Liquid Cooled Systems
Thermal Management of Telecommunications Equipment