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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 ...
The correlation of nucleate boiling burn-out data
(Cambridge, Mass. : M.I.T. Division of Industrial Cooperation, [1957], 1957)
A dimensionless correlation is developed for nucleate boiling buzrnout data including the following ranges of variables. Fluids - Water Bensene n - Heptane n - Pentane Ethanol Pressure - 0.0045 to 0.96 of critical pressure ...
Void volumes in subcooled boiling systems
(Cambridge, Mass. : M.I.T. Division of Industrial Cooperation, [1958], 1958)
Introduction: Knowledge of the pressure drop in a channel and the resulting flow redistribution is essential in predicting the performance of a nuclear reactor. The pressure drop in a channel which is experiencing boiling ...
Slug flow
(Cambridge, Mass. : Division of Sponsored Research, Massachusetts Institute of Technology, [1959], 1959)
Introduction: When two phases flow concurrently in a pipe, they can distribute themselves in a number of different configurations. The gas could be uniformly dispersed throughout the liquid in the form of small bubbles. ...
The Momentum flux in two-phase flow
(Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1965], 1965)
The average momentum flux at a section of a pipe with twophase upflow has been measured by the impulse technique. Steamwater and air-water mixtures were tested in one-inch and onehalf inch nominal pipes. Homogeneous ...
Bubble growth rates in boiling
(Cambridge, Mass. : Massachusetts Institute of Technology, Division of Industrial Cooperation, [1956], 1956)
The conditions determining the growth rate of a bubble on a surface in boiling are considered and a mathematical model framed in the light of these conditions. The growth rate is then calculated for bubbles growing under ...