HIGH ACCELERATION FIELD HEAT TRANSFER FOR AUXILIARY SPACE NUCLEAR POWER SYSTEMS. Quarterly Technical Report, March 1 to May 31, 1963

Technical Report · Thu Oct 31 04:00:00 EST 1963

OSTI ID:4702339

Poppendiek, H F; Greene, N D; MacDonald, F R; Sabin, C M; Livett, R K

The liquid-metal heat-transfer system was operated with both water and mercury to date. Nonboiling water heat-transfer conductances were found to differ from predicted values by 6 to 15%. A low-power, nonboiling heating experiment was conducted using mercury; heat balances accounting for over 90% of the electrical input were obtained. A radiantly heated boiler test section which will be used for high-quality experiments was constructed and all associated instrumentation procured. Preliminary experiments were conducted of the vaporization of water droplets on a hot surface. A number of materials evaluation studies were made in support of the liquid metal system. Three forced- flow, saturation-boiling heat-transfer models were evaluated and compared. Information on axial boiling conductance variations for different types of vapor- liquid patterns was obtained. Also, one model has yielded data on wall temperature transients in a boiler under slug flow conditions. Analytical studies were made of the vaporization of liquid drops contiguous to a hot wall; droplet lifetimes and thickness of vapor films between the droplet and hot wall were determined. (auth)

• Research Organization: Geoscience Ltd., Solano Beach, Calif.
• NSA Number: NSA-17-029076
• OSTI ID: 4702339
• Report Number(s): TID-18996; GLR-14
• Country of Publication: United States
• Language: English

Related Subjects

BOILING
CONFIGURATION
DROPLETS
ELECTRICITY
ENGINEERING AND EQUIPMENT
ERRORS
EVAPORATION
FILMS
FLOW MODELS
FLUID FLOW
HEAT TRANSFER
INSTRUMENTS
LABORATORY EQUIPMENT
LIQUID METALS
LIQUIDS
MATHEMATICS
MERCURY
PERFORMANCE
SATURATION
SLUG FLOW
STANDARDS
SURFACES
TESTING
THERMAL CONDUCTIVITY
THERMAL RADIATION
THERMODYNAMICS
THICKNESS
VAPORS
VARIATIONS
WATER