TY  - THES
AU  - Voswinckel, Moritz
TI  - Sicherheitselemente zur Beseitigung von Wasserstoff aus inertisierten Containments von Siedewasserreaktoren
VL  - 3919
IS  - Juel-3919
SN  - 0944-2952
PB  - Techn. Hochsch. Aachen
VL  - Dr. (FH)
CY  - Jülich
M1  - PreJuSER-31808
M1  - Juel-3919
T2  - Berichte des Forschungszentrums Jülich
SP  - II, 130 p.
PY  - 2001
N1  - Record converted from VDB: 12.11.2012
N1  - Aachen, Techn. Hochsch., Diss., 2001
AB  - In Light-Water-Reactors a zirconium-steam reaction and additional metal corrosion during heavy accidents with core meltdown can result in massive hydrogen release. According to a safety study conducted by GRS an existing Boiling-Water-Reactors (BWR) and studies an future designs for BWR, this may cause a pressure built-up in the containment. As a consequence depressurisation of the containment atmosphere is required. Experiments were conducted basing an these studies to remove hydrogen from the containment with regard to maintaining its integrity. In a literature study conducted before oxidation of hydrogen with manganese dioxide and separation by means of metal membranes were found as methods with highest potential. Their feasibility in varying accident environments was shown. The oxidation reaction proved to be fast without additional hazards. However, the high amount of oxidant needed is disadventageous. The hydrogen removal by means of metal membranes is slower than in case of the oxidation reaction, but there is no limitation of a fixed amount of hydrogen. Their potential for an application in reactor containments is higher especially if the permeability of the membranes can be augmented. Harmful, however, is the hydrogen pressure difference needed for matter transport.
LB  - PUB:(DE-HGF)11 ; PUB:(DE-HGF)3
UR  - https://juser.fz-juelich.de/record/31808
ER  -