详情

原文传递 Chemical reactions of UF{sub 6} with water on ingress to damaged model 48X 10 ton cylinder

题名：	Chemical reactions of UF{sub 6} with water on ingress to damaged model 48X 10 ton cylinder
作者：	Rothman, A.B.;
关键词：	42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES;40 CHEMISTRY ; URANIUM HEXAFLUORIDE; CHEMICAL REACTIONS; WATER; PACKAGING; SAFETY ANALYSIS; WATER CHEMISTRY; GAS CYLINDERS; CRACKS; FRACTURES; ANALYTICAL SOLUTION; PHASE DIAGRAMS
摘要：	Chemistry studies of the effects of water flooding in Model 48X 10-ton UF{sub 6} storage cylinders, as a result of impact fractures, were conducted to support the Safety Analysis Report for Packaging (SARP) review of the Paducah Tiger Overpack for transportation of those cylinders. The objectives of the study were to determine the maximum amount of water that could be admitted to the interior of such a damaged cylinder, the resulting geometries and chemical compositions from reactions of water with the UF{sub 6} contents of the cylinder, and the end-state water moderated and reflected configurations for input to nuclear criticality safety analyses. The case identified for analysis was the flooding of the inside of a cylinder, submerged horizontally in 3 ft of water. The flooding was driven by an initial pressure drop of 13 psig, through an assumed fracture (1/32 in. wide{times} 1/2 in. deep{times} 18 in. long) in the barrel of the cylinder. During the initial addition of water, transient back pressures occur from the effects of the heats of reaction and solution at the water/UF{sub 6} interface, with some chugging as more water is added to alternately coot the reaction surface and then heat it again as the added water reacts with more UF{sub 6}.
总页数：	9p
报告类型：	科技报告