Design and Fabrication of a Counterflow Double-containment Tantalum-stainless Steel Mercury Boiler |
Common terms and phrases
assembly bellows bimetal joint BOILER PRESSURE DROP brazed Change in length Change in pressure cycles Design length DOUBLE CONTAINMENT BOILER flattened SS tube heat-transfer Hg containment Hg outlet Hg tube High Low High inch kN/m² Lewis Research Center limit Minimum limit loop stress Low High Low man-rated Maximum limit Minimum Mercury inlet N/m² NaK containment tube NaK flowed NaK inlet temperature NaK loop Off-design length oval SS tube passage plug insert percent Pinch point plug insert geometry Preheat length Preheat section Vapor primary NaK psia radiator radius reactor section mass section Vapor quality shown in figure Single passage plug space SS shell stainless steel tube static NaK straight section Superheat swaged Ta tube Ta-SS tantalum tube thermal conductivity thermal expansion tongue and groove transition dome tube bundle tube-in-tube boiler tube-to-header tungsten U.S. Customary units Unplugged tube Vapor quality section wall thickness weld wire ΔΡ