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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},
}