The optimun plate spacings for maximum separation, maximum production rate and minimum column length in a flat-plate thermal diffusion column for the improvement in separation of heavy water (D2O) from water - isotopes mixture (H2O-HDO-D2O) have been determined. Considerable improvement in performance is obtainable if the plate spacing is suitably adjusted. The appropriate temperature differences between two vertical plates of a thermal diffusion column for keeping the total expense fixed are also delineated.
Keywords: Heavy Water, Thermal Diffusion, Plate Spacing
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