Correlation of local heat flux from inclined volume-heated pools in bubbly flow

Conference · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6278936

Greene, G A; Abuaf, N; Jones, Jr, O C

Local and average heat transfer from volume-boiling pools in the two-phase bubbly flow regime to vertical and inclined flat boundaries were measured. The experimental technique and newly developed gold electroplated microthermocouples to make the measurements are described. A modification to the Boussinesq approximation for liquids is outlined which includes the effect of the average void fraction in a modified Rayleigh number. Heat transfer to vertical and inclined surfaces is correlated in a fashion similar to natural convection in the bubbly flow regime. These new correlations agreed in general with those based on average heat transfer data obtained by Gabor et al. The data from one reference, however, were found to lie significantly below the present data on an average as well as local basis.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6278936
• Report Number(s): BNL-NUREG-27561; CONF-800723-4; ON: TI85003569
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
BOILING
BUBBLES
CONVECTION
CORRELATIONS
ENERGY TRANSFER
HEAT TRANSFER
MASS TRANSFER
NATURAL CONVECTION
PHASE TRANSFORMATIONS