|Author||Donne, M. D.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||GENERAL STUDIES OF NUCLEAR REACTORS ♦ ENGINEERING ♦ REACTOR CORE DISRUPTION ♦ BUBBLE GROWTH ♦ SODIUM ♦ CALCULATION METHODS ♦ CONVECTION ♦ DIFFUSION ♦ DYNAMICS ♦ EQUATIONS ♦ EVAPORATION ♦ FISSION PRODUCTS ♦ LIQUIDS ♦ SIMULATION ♦ VAPOR CONDENSATION ♦ VAPORS ♦ VELOCITY ♦ ACCIDENTS ♦ ALKALI METALS ♦ ELEMENTS ♦ FLUIDS ♦ GASES ♦ ISOTOPES ♦ MATERIALS ♦ MECHANICS ♦ METALS ♦ PHASE TRANSFORMATIONS ♦ RADIOACTIVE MATERIALS ♦ REACTOR ACCIDENTS ♦ Nuclear Reactor Technology- Reactor Safety ♦ Engineering- Heat Transfer & Fluid Flow|
|Abstract||The study of the dynamics of the expansion of large bubbles of hot sodium vapor in a pool of liquid sodium plays an important role in understanding the effects of a hypothetical core disruptive accident. A model of the growth of the bubble in the pool is described. The equations of the motion of the liquid and of the nonsteady heat diffusion problem are solved together with the continuity and energy equations for the vapor phase. The first set of calculations has been performed with constant evaporation and condensation coefficients. In the second set, however, due account has been taken of the effect on condensation of noncondensable fission gases and vapor convection. Due to the very high calculated vapor velocities, noncondensable gases have little effect on the condensation rate, and the percentage amount of condensed sodium is considerably higher than previously calculated by other authors.|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Organization||Kernforschungszentrum Karlsruhe Institut fur Neutronenphysik und Reaktortechnik, Postfach 3640, D-75 Karlsruhe|
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