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http://dx.doi.org/10.3795/KSME-B.2007.31.4.335

Study on Correlation of Droplet Flow Rate and Film Boiling Heat Transfer in Spray Cooling  

Yun, Seung-Min (안동대학교 대학원 기계공학부)
Kim, Yeung-Chan (안동대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.31, no.4, 2007 , pp. 335-340 More about this Journal
Abstract
A new correlation between the Nusselt number based on modified heat transfer coefficient and Reynold number based on droplet-flow-rate was developed for the experimental data. The modified heat transfer coefficient was defined as ratio of wall heat flux to droplet subcooling. In the previous reports, the local heat flux of spray cooling in the film boiling region was experimentally investigated for the water spray region of $D_{max} = 0.0007{\sim}0.03m^3/(m^2s)$ . In the region near the stagnation point of spray flow, a new heat transfer correlation is recommended which shows good predictions for the water spray region of $D_x{\le}0.01m^3/(m^2s)$.
Keywords
Spray Cooling; Heat Transfer; Droplet Flow Rate; Film Boiling; Heat Treatment;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 1
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