BASIC STUDIES IN HEAT TRANSFER AND FLUID FLOW. Quarterly Progress Report for Period April 1, 1961 to June 30, 1961

Technical Report · Fri Jun 30 04:00:00 EDT 1961

OSTI ID:4840750

Diskind, T; Lee, D; Lummis, R; Vohr, J

Nucleate boiling and burnout experiments were conducted with hollow nickel heaters. Data accumulated from the work are presented in graphical and tabular form. Transient vaporization analyses were carried out which predicts, for certain cases, the non-boiling response of the heater-liquid system to power input transients. Expressions were derived for the heat flux density into the liquid and for the instantaneous temperature at the solid-liquid interface, in the two limiting cases of very low frequency and very high frequency heat generation. A discussion is given of the design and evaluation of a Cyclical Optical Scanner for obtaining optical density traces on high-speed motion picture film of two-phase flow patterns. Convection heat transfer studies were made for a 92% eccentric annulus in which variations were made in water velocities of 3 to 24 fps, heat generation rates of 40,000 to 340,000 Btu/ (hr)(ft/sup 2/), and Reynolds numbers of 20,000 to 250,000. Measurements made during the tests were: electric current, voltage at 6 points along the heater tube, inlet and outlet water temperatures, test section pressure, and water flow rate. Calculations were made for: bulk average water temperature at each thermocouple level, circumferential average heater tube surface temperature at each level, heat generation rate, and average heat transfer coefficient. (B.O.G.)

• Research Organization: Columbia Univ., New York. Engineering Research Labs.
• NSA Number: NSA-15-029361
• OSTI ID: 4840750
• Report Number(s): NYO-9647; IX-QPR-2-61
• Country of Publication: United States
• Language: English

Related Subjects

BOILING
BURNOUT
CONFIGURATION
CONVECTION
CURRENTS
DENSITY
DIAGRAMS
ELECTRIC POTENTIAL
ENGINEERING AND EQUIPMENT
EVAPORATION
FLOW MODELS
FLUID FLOW
FREQUENCY
HEAT TRANSFER
HEATING
IMAGES
LABORATORY EQUIPMENT
LIQUIDS
MATHEMATICS
MEASURED VALUES
NICKEL
NUCLEATE BOILING
OPTICAL SYSTEMS
PHOTOGRAPHY
PRESSURE
REYNOLDS NUMBER
STANDARDS
SURFACES
TABLES
TEMPERATURE
THERMOCOUPLES
THERMODYNAMICS
TUBES
TURBULENCE
VARIATIONS
VELOCITY
WATER