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Full-Text Articles in Nuclear Engineering
A Theoretical Study Of The Mechanism For The Haeffner Effect, David Charles Jacobs
A Theoretical Study Of The Mechanism For The Haeffner Effect, David Charles Jacobs
Masters Theses
"In 1953, E. Haeffner reported that when he had passed a direct electric current through a length of capillary filled with liquid mercury, the lighter mercury isotopes were enriched at the positive terminal and the heavier mercury isotopes were enriched at the negative terminal. This phenomenon is referred to as the Haeffner Effect. Since Haeffner’s original experiment, other investigators have obtained similar results in other liquid metal systems.
When a direct electric current passes through a metallic conductor a free energy gradient is established. The direction of the negative free energy gradient is in the direction of the positive terminal. …
The Removal Of Sub-Structure From Alpha Uranium, Albert E. Bolon
The Removal Of Sub-Structure From Alpha Uranium, Albert E. Bolon
Masters Theses
"The possibility of obtaining larger, perfect single crystals of alpha uranium by a modified strain-anneal method has been investigated. A -196°C tensile deformation was performed on pseudo single crystal rods which had been prepared by the phase transformation method. The specimens were subsequently annealed at 650°C.
It was found that by utilizing pseudo single crystals with a prescribed crystallographic orientation with respect to the tensile axis that recrystallized crystals of comparable size and perfection to those prepared by the grain coarsening method could be produced. Grain coarsening is the presently accepted process for preparing perfect single crystals of alpha uranium. …
Porous Cooling Of A Pile, Tarsem Singh Purewal
Porous Cooling Of A Pile, Tarsem Singh Purewal
Masters Theses
"In this investigation the problem of a limiting case of steady state one dimensional solid-fluid Newtonian heat transfer is examined in which an incompressible non-heat generating coolant fluid is flowing through a heat generating porous plate.
The effect of grain size on the Newtonian heat transfer in the porous plate with various kinds of internal heat generations is determined analytically. The temperature difference between the solid and the coolant fluid through the porous plate is determined. All the previous studies assume that in the porous plate, coolant fluid temperature and solid temperatures are approximately equal. This analysis eliminates this simplifying …