BOILING-WATER VOID DISTRIBUTION AND SLIP RATIO IN HEATED CHANNELS. Final Report

Technical Report · Wed May 31 04:00:00 EDT 1961

OSTI ID:4046431

Foglia, J J; Peter, F G; Epstein, H M; Wooton, R O; Dingee, D A; Chastain, J W

Distribution of void and the behavior of slip ratio in light water in a rectangular heated test section were investigated with a beta-particle- attenuation technique. The amount of void in the subcooled region was determined to within plus or minus 3% void. Various combinations of the following conditions were investigated: pressures from 700 to 1300 psia, mass flow rates from 1.0 to 3.0 x 10/sup 6/ lb/hr/ft/sup 2/, and heat fluxes from 0.10 to 0.60 x 10/sup 6/ Btu/hr/ft/sup 2/. The test section was heated with both a-c and d-c power, and no significant difference in the results was detected. It was found that the slip ratio at a high Reynolds number is much more a function of the Reynolds number than of pressure. Furthermore, for Reynolds numbers between 50,000 and 90,000 the slip ratio at constant void fraction reaches a maximum. Some of the recent theoretical correlations of subcooled and bulk boiling were tested. The experimental bulk-boiling results compare reasonably well with the most recent theoretical models. Void fraction at zero quality can be correlated by the expression: alpha = 0-113 X/sub e//sub x/ (L/LB)/(P/sub c//P/sub s//sub a//sub t/ - 1). (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-15-022420
• OSTI ID: 4046431
• Report Number(s): BMI-1517; EURAEC-149
• Country of Publication: United States
• Language: English

Related Subjects

BOILING
COOLING
CURRENTS
ELECTRICITY
ENGINEERING AND EQUIPMENT
FLUID FLOW
HEATING
LABORATORY EQUIPMENT
LIQUIDS
MASS
MATHEMATICS
PERFORMANCE
PRESSURE
QUANTITATIVE ANALYSIS
QUANTITY RATIO
REYNOLDS NUMBER
SLIP RATIO
STEAM
SUBCOOLED BOILING
SUBCOOLING
TURBULENCE
VAPORS
VELOCITY
WATER