Cold vacuum drying proof of performance (first article testing) test results

Abstract

This report presents and details the test results of the first of a kind process referred to as Cold Vacuum Drying (CVD). The test results are compiled from several months of testing of the first process equipment skid and ancillary components to de-water and dry

Multi Canister Overpack (MCO) Topical Report [SEC 1 THRU 3]

“…The tops of the simulated fuel elements contained cavities that held water to mimic the corrosion pockets in the actual fuel elements. Additional and more realistic testing using a first-article MCO assembly and first-article process equipment skid @e., the vacuum purge and tempered water systems) and using simulated fuel and scrap baskets was completed in 1998 (McCracken 1999). This tasting also demonstrated that the cold vacuum drying process and equipment design can successfully dry the contents of an MCO containing a nominal fuel loading in slightly more than 30 hours.…”

Evaluation of helium impurity impacts on Spent Nuclear Fuel project processes (OCRWM)

“…And, because additional carbon dioxide could be formed from methane, as the result of radiolysis of both water and methane, followed by recombination of the resulting carbon and oxygen, the calculations also treat the I O pprn of CH4 as10 ppm of C02, for an equivalent total of 11 + I O = 21 pprn of C 0 2 . (McCracken 1999) lists the nominal quantity of helium per MCO as 3,300 std. ft3 (scf) which actually represents the helium used for both nominal and worst case fuel configurations (pristine fuel required considerably less helium).…”