Time and space resolved heat transfer data on a nominally isothermal surface cooled by two spray nozzles was obtained using an array of individually controlled microheaters. Visualization and measurements of the liquid-solid contact area and three-phase contact line length were made using a total internal reflectance technique. The spacing between the nozzles and the heated surface was varied between 7 mm and 17 mm. Little interaction between the two sprays was observed for the tested conditions, with the heat flux produced by a single nozzle remaining comparable to that produced by two nozzles, provided the areas considered were limited to the regions impacted by the sprays. Variations in the heat transfer across the surface, however, increased significantly with decreasing spacing. The phase change heat transfer was strongly correlated with the length of the three-phase contact line.
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ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
July 11–15, 2004
Charlotte, North Carolina, USA
Conference Sponsors:
- Heat Transfer Division and Fluids Engineering Division
ISBN:
0-7918-4692-X
PROCEEDINGS PAPER
Spray Cooling Using Multiple Nozzles: Visualization and Wall Heat Transfer Measurements
Bohumil Horacek,
Bohumil Horacek
University of Maryland, College Park, MD
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Jungho Kim,
Jungho Kim
University of Maryland, College Park, MD
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Kenneth T. Kiger
Kenneth T. Kiger
University of Maryland, College Park, MD
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Bohumil Horacek
University of Maryland, College Park, MD
Jungho Kim
University of Maryland, College Park, MD
Kenneth T. Kiger
University of Maryland, College Park, MD
Paper No:
HT-FED2004-56163, pp. 437-451; 15 pages
Published Online:
February 24, 2009
Citation
Horacek, B, Kim, J, & Kiger, KT. "Spray Cooling Using Multiple Nozzles: Visualization and Wall Heat Transfer Measurements." Proceedings of the ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. Volume 3. Charlotte, North Carolina, USA. July 11–15, 2004. pp. 437-451. ASME. https://doi.org/10.1115/HT-FED2004-56163
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