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@ARTICLE{Shi:863422,
      author       = {Shi, Yan and Janßen, Holger and Lehnert, Werner},
      title        = {{A} {T}ransient {B}ehavior {S}tudy of {P}olymer
                      {E}lectrolyte {F}uel {C}ells with {C}yclic {C}urrent
                      {P}rofiles},
      journal      = {Energies},
      volume       = {12},
      number       = {12},
      issn         = {1996-1073},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2019-03492},
      pages        = {2370 -},
      year         = {2019},
      abstract     = {This paper reports on the effects of different load
                      profiles on the transient behavior of a polymer electrolyte
                      fuel cell (PEFC). A protocol of six tests, each with
                      different current density ramps, was conducted. The
                      corresponding cell voltage, pressure drop response, and
                      ohmic resistance were then experimentally investigated. The
                      time-dependent voltage profiles were applied to represent
                      the cell performance. The cathodic pressure drop and ohmic
                      resistance were utilized to analyze the water dynamic
                      behavior inside the cell. The voltage overshoot and
                      undershoot behavior were observed throughout the experiment.
                      It was found that with an increase of the current change
                      rates, the magnitude of voltage over/undershoots also
                      increased. When the holding time at the constant current
                      density was zero, the overshoot or undershoot behavior
                      disappeared. The results of the pressure drop analysis
                      showed that the load ramp did not have a significant effect
                      on the average pressure drop in the tests. During the load
                      cyclic operation in each test, the two-phase flow tended to
                      reach equilibrium in the cell. Impedance analysis showed
                      that the ohmic resistance changed with the change in the
                      current density; however, the difference between the tests
                      was not obvious},
      cin          = {IEK-3},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-3-20101013},
      pnm          = {135 - Fuel Cells (POF3-135)},
      pid          = {G:(DE-HGF)POF3-135},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000473821400143},
      doi          = {10.3390/en12122370},
      url          = {https://juser.fz-juelich.de/record/863422},
}