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Separative work – the amount of separation done by an enrichment process – is a function of the concentrations of the feedstock, the enriched output, and the depleted tailings; and is expressed in units which are so calculated as to be proportional to the total input (energy / machine operation time) and to the mass processed. Separative work is ''not'' energy. The same amount of separative work will require different amounts of energy depending on the efficiency of the separation technology. Separative work is measured in ''Separative work units'' SWU, kg SW, or kg UTA (from the German ''Urantrennarbeit'' – literally ''uranium separation work'') * 1 SWU = 1 kg SW = 1 kg UTA * 1 kSWU = 1 tSW = 1 t UTA * 1 MSWU = 1 ktSW = 1 kt UTA == Definition == The work necessary to separate a mass of feed of assay into a mass of product assay , and tails of mass and assay is given by the expression : where is the value function, defined as : The feed to product ratio is given by the expression : whereas the tails to product ratio is given by the expression : 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Separative work units」の詳細全文を読む スポンサード リンク
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