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http://dx.doi.org/10.3795/KSME-B.2006.30.12.1236

Study on Film Boiling Heat Transfer of Spray Cooling in Air-Water Full Cone Spray System  

Kim, Yeung-Chan (안동대학교 기계공학부)
Yun, Seung-Min (안동대학교 대학원 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.12, 2006 , pp. 1236-1242 More about this Journal
Abstract
The local heat flux of spray cooling in the film boiling region were experimentally investigated for the spray region of $D_{max}$ = $0.005{\sim}0.03m^3/(m^2s)$. A twin-fluid full cone spray nozzle was employed for the experiment and the distributions of droplet flow rates were obtained for air-water full cone sprays. A stainless steel block was cooled down from initial temperature of about $800^{\circ}C$ by full cone spray. In the region near the stagnation point, it was found that the experimental data are in good agreement with the results predicted from the correlations between the local heat transfer and the local droplet flow rate proposed in the previous report. However, it was found that the experimental data of $D_r$ > $0.01m^3/(m^2s)$ are a little smaller than the results predicted from the correlations.
Keywords
Spray Cooling; Heat Transfer; Film Boiling; Heat Treatment; Full Cone Spray;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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