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Some hydrodynamic characteristics of bubbly mixtures flowing vertically upward in tubes
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1964], 1964)
An investigation of bubbly flow has been conducted in vertical plexiglass tubes using air and water at atmospheric pressure. The bubbly flow pattern is an entrance condition or a non-fully developed flow. A spontaneous ...
The deterioration in heat transfer to fluids at super-critical pressure and high heat fluxes
(Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1968], 1968)
Introduction: Several supercritical steam generators in the American Electric Power system have shown evidence of tube overheat in the lower furnance at the point where the water bulk temperature is about 670 0 F. The ...
Two phase flow in capillary tubes
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1963], 1963)
The flow of two phases, gas and liquid, has been studied in horizontal tubes of capillary diameter. The flow has been primarily studied in the regime where the gas flows as long bubbles separated from the wall of the tube ...
The prediction of low quality boiling voids
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1963], 1963)
Slug flow theory is used to predict the density in heated channels of various shapes. In order to make this calculation possible, measurements are made of the bubble rise velocity in annuli, tube bundles, and channels. It ...
The Prediction of multiple heated channel flow patterns from single channel pressure drop data
(Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering [1968], 1968)
Pressure drop and burnout data taken on a single tube apparatus using Freon at one atmosphere has been used to predict the flow patterns, burnout and points at which flow reverses in a five tube array. All the behavior ...
Pressure drop with surface boiling in small-diameter tubes
(Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1964, 1964)
Pressure drop for water flowing in small-diameter tubes under isothermal, nonboiling, and surface-boiling conditions was investigated. Experimental results for local pressure gradient and heattransfer coefficients are ...
Transition boiling heat transfer from a horizontal surface
(Cambridge, Mass. : Massachusetts Institute of Technology, Division of Industrial Cooperation, [1960], 1960)
An experiment, utilising a condensing fluid as the heat source, was performed to determine the heat flux vs. temperature difference curve for transition pool boiling from a horisontal surface. The boiling cure was determined ...
The effect of surface roughness and waviness upon the overall thermal contact resistance
(Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1966], 1966)
A thermal contact conductance equation was developed which considers both the effect of surface roughness and waviness. It was shown that the overall thermal contact conductance is determined by the roughness at large ...
Refrigerant forced-convection condensation inside horizontal tubes
(Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1968], 1968)
Condensing heat transfer rates inside a horizontal tube were investigated -for large quality changes across the tube. The proposed correlation is a modification of the work of Rohsenow, Webber and Ling [29]. The result of ...
Thermal non-equilibrium in dispersed flow film boiling in a vertical tube
(Cambridge, Mass. : M.I.T. Dept. of Mechanical Engineering, [1966], 1966)
The departure from thermal equilibrium between a dispersed liquid phase and its vapor at high quality during film boiling is investigated, The departure from equilibruim is manifested by the high resistance to heat transfer ...