% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Kelm:61879, author = {Kelm, St. and Reinecke, E.-A. and Dornseiffer, J. and Hofmann, D. and Leistner, F. and Schoppe, L. and Jühe, S.}, title = {{E}ine interdisziplinäre {S}tudie zum {E}influss der {B}etriebsbedingungen im {R}eaktorsicherheitsbehälter auf die {W}irksamkeit von katalytischen {W}asserstoffrekombinatoren}, journal = {Atw}, volume = {53}, issn = {1431-5254}, reportid = {PreJuSER-61879}, pages = {254 - 257}, year = {2008}, note = {Record converted from VDB: 12.11.2012}, abstract = {At the Emsland nuclear power station, a total of 58 autocatalytic hydrogen recombiners were backfitted in 1999 as an additional measure of risk reduction in connection with major hydrogen releases after events going beyond the design basis. Annual in-service inspections after 2002 revealed that some of the catalyst sheets developed startup delays and marked evolutions of smoke and smell. Recombiners not meeting the inspection criterion were completely regenerated as a measure of precaution.A preventive study was conducted jointly with institutes of the Julich Research Center and the Aachen Technical University to analyze the composition of the deposits, which was then compared with the chemical characteristics of potential sources in the reactor containment. At the same time, the influence on effectiveness of the catalyst sheets was examined.On the basis of a random evaluation of the in-service inspection logs of the past few years, representative samples were taken whose startup behavior and operating characteristics were studied in a test rig alongside chemical analyses so as to allow a correlation to be established between the analytical findings and the catalytic activity of the samples. The findings made allowed internal sources of the catalyst deposits to be excluded. The impurities are introduced with the outside air. As a consequence, the air ducts in the vicinity of the respective recombiners were inspected and optimization steps were taken in connection with in-service inspections and regeneration procedures.}, keywords = {J (WoSType)}, cin = {ICG-2 / IEF-6 / ZCH}, cid = {I:(DE-Juel1)VDB791 / I:(DE-Juel1)VDB814 / I:(DE-Juel1)ZCH-20090406}, pnm = {Nukleare Sicherheitsforschung / Atmosphäre und Klima}, pid = {G:(DE-Juel1)FUEK404 / G:(DE-Juel1)FUEK406}, shelfmark = {Nuclear Science $\&$ Technology}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000256650300007}, url = {https://juser.fz-juelich.de/record/61879}, }