Quenching of hot vertical rods by top rewetting
Conference
·
· Trans. Am. Nucl. Soc.; (United States)
OSTI ID:5892662
Cooling of a very hot surface by a falling liquid film is an important subject in nuclear safety applications. It is known that the quenched front velocity depends on coolant subcooling, hot surface temperature, coolant flow rate, and physical characteristics of the surface. Quench velocities have been measured on single vertical rods, and they can be correlated approximately on bases similar but not identical to existing correlations. For given operating conditions, they are similar to but somewhat lower than previous results. For combinations of two and three rods, the quench velocities were within +/-20% of those obtained with a single rod under the same operating conditions. Boiling curves obtained from the temperature histories indicated no typical nucleate boiling region, but rather a constant heat transfer coefficient. Maximum heat fluxes were like those associated with saturated pool boiling.
- Research Organization:
- Systems Control Inc., Palo Alto, CA
- OSTI ID:
- 5892662
- Report Number(s):
- CONF-851115-
- Conference Information:
- Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 50
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ACCIDENTS
CONFIGURATION
ENERGY TRANSFER
FLOW RATE
FLUID MECHANICS
FUEL ELEMENTS
FUEL RODS
HEAT TRANSFER
HYDRAULICS
MECHANICS
QUENCHING
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR SAFETY EXPERIMENTS
SIMULATION
TEMPERATURE DEPENDENCE
420400* -- Engineering-- Heat Transfer & Fluid Flow
ACCIDENTS
CONFIGURATION
ENERGY TRANSFER
FLOW RATE
FLUID MECHANICS
FUEL ELEMENTS
FUEL RODS
HEAT TRANSFER
HYDRAULICS
MECHANICS
QUENCHING
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR SAFETY EXPERIMENTS
SIMULATION
TEMPERATURE DEPENDENCE