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Experimental investigation of effects of the feed flow rate and “tail scoop-wall” clearance on the performance of a gas centrifuge by feeding a Freon mixture
, Article Separation Science and Technology (Philadelphia) ; Volume 51, Issue 7 , 2016 , Pages 1259-1267 ; 01496395 (ISSN) ; Outokesh, M ; Karimi Sabet, J ; Sharif University of Technology
Taylor and Francis Inc
2016
Abstract
ABSTRACT: Experimental study of the performance of a gas centrifuge can be appreciably simplified if instead of isotopic mixtures, a binary mixture of gases with large molecular weight difference is used. The current study undertook this approach by injecting a 53%–47% (w/w) mixture of “Freon12-Freon22” into a gas centrifuge. The two parameters, whose investigation was the objective of the current study were: the feed flow rate (F), and the clearance between tail scoop and the rotor wall (d). The results demonstrated that changing the scoop-wall clearance has the most significant effect on the cut (θ), so that by fixing “d”, “θ” becomes nearly invariant. The head separation factor (α)...
Study on the Mass Transfer and Isotope Separation Phenomena in a Gas Centrifuge by Using FEREON Mixtures as Model Compounds
, M.Sc. Thesis Sharif University of Technology ; Outokesh, Mohammad (Supervisor) ; Karimi-Sabet, Javad (Supervisor) ; Norouzi, Ali (Co-Advisor)
Abstract
In the nuclear industry, gas centrifuges are considered of high importance for the purpose of uranium enrichment. Today, with advances in science and technology, the use of gas centrifuges for separating isotopes other than uranium, is so common. With respect to the use of conventional methods such as Pancake equation in calculating the velocity profile in centrifuges, it is needed that A^2=(MV^2)/2RT≫1 (M: Feed molecular weight; V: Peripheral speed of centrifuge; T: Mean temperature of feed; R: The universal constant of gases). While the molecular weight of the feed mixture gets lower, the A2 parameter gets closer to one. So, other methods for modeling the behavior of the gas in the...