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@ARTICLE{Tatsumoto:1006445,
author = {Tatsumoto, H. and Lyngh, D. and Arnold, P. and Segerup, M.
and Tereszkowski, P. and Beßler, Y.},
title = {{F}ailure analysis of leaks due to cracks in hydrogen
transfer lines of {ESS} cryogenic moderator},
journal = {IOP conference series / Materials science and engineering},
volume = {1240},
number = {1},
issn = {1757-8981},
address = {London [u.a.]},
publisher = {Institute of Physics},
reportid = {FZJ-2023-01679},
pages = {012115 -},
year = {2022},
abstract = {The ESS cryogenic Moderator System (CMS) has been designed
to slow down the high-energy neutrons by means of two
hydrogen moderators (to be increased to four in the future)
by using forced flow of subcooled liquid hydrogen with a
temperature of 17 K at 1.0 MPa. A liquid hydrogen leak is
considered the most severe failure for the CMS. A leak
scenario from the transfer line to its vacuum envelope
through a crack have been analyzed and the expected results
will be presented in this paper. An analysis code has been
developed and calculated the pressure and temperature
changes in the CMS process line and its vacuum envelope. The
effect of the crack sizes is clarified. The consequential
temperature changes along the vacuum envelope as well as the
pressure drops were calculated. The required size of the
safety relief device in the hydrogen transfer line and its
vacuum envelope have thereby been determined and
implemented.},
cin = {ZEA-1},
ddc = {530},
cid = {I:(DE-Juel1)ZEA-1-20090406},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4)},
pid = {G:(DE-HGF)POF4-6G4},
typ = {PUB:(DE-HGF)16},
doi = {10.1088/1757-899X/1240/1/012115},
url = {https://juser.fz-juelich.de/record/1006445},
}