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@ARTICLE{Tatsumoto:1006444,
      author       = {Tatsumoto, H. and Lyngh, D. and Arnold, P. and Segerup, M.
                      and Tereszkowski, P. and Beßler, Y.},
      title        = {{D}esign of a hydrogen vent line for {ESS} cryogenic
                      moderator system},
      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-2023-01678},
      pages        = {012116 -},
      year         = {2022},
      abstract     = {The ESS cryogenic moderator system (CMS) circulates
                      subcooled liquid hydrogen at 17 K and 1 MPa to remove
                      nuclear heating at two hydrogen moderators. All the hydrogen
                      will be safely released to the atmosphere on the roof top of
                      the Target building through a hydrogen vent line (HVL) with
                      a total length of 36 m. Two-phase hydrogen would flow
                      through the HVL because the hydrogen expands by isenthalpic
                      process. The HVL has been designed to avoid decreasing the
                      wall penetration temperature below 253 K and to be sized big
                      enough to limit the backpressure below the design pressure.
                      One-dimensional transient thermohydraulic analysis code that
                      can treat two-phase flow heat transport behavior has been
                      developed. A natural convection heat transfer from air to
                      the cold surface is considered. In this work, the wall
                      temperature reductions and the pressure drop along the HVL
                      during release of cryogenic hydrogen are analyzed. The size
                      and thickness of the HVL have been verified based on the
                      analysis results.},
      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/1240/1/012116},
      url          = {https://juser.fz-juelich.de/record/1006444},
}