Free Convection Film Boiling Heat Transfer From a Rotating Surface

[+] Author and Article Information
J. Orozco, H. Francisco

Florida International University, Department of Mechanical Engineering, University Park Campus, Miami, FL 33199

J. Heat Transfer 114(3), 695-702 (Aug 01, 1992) (8 pages) doi:10.1115/1.2911336 History: Received August 01, 1990; Revised November 01, 1991; Online May 23, 2008


A boundary layer model of laminar, subcooled, free convection film boiling from a rotating sphere has been developed. The conservation equations for the vapor and liquid were simplified, transformed into ordinary differential equations using an integral approach, and solved numerically. The theoretical variation of vapor film thickness with heater temperature and the resulting boiling fluxes were investigated. An experimental facility was built for the purpose of verifying the validity of the theoretical model and good agreement was found between the model and the experimental data at low rpm. The instability of the vapor film near the minimum heat flux for a rotating surface flux was also investigated.

Copyright © 1992 by The American Society of Mechanical Engineers
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