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@ARTICLE{Schaefer:1021682,
      author       = {Schaefer, Felix and Egger, Sebastian and Steiner, Dietmar
                      and Maxime, Carré and Eichel, Rüdiger-A.},
      title        = {{C}ontrol of oxygen-to-carbon ratio and fuel utilization
                      with regard to solid oxide fuel cell systems with
                      anode-offgas recirculation: {A} review},
      journal      = {engrXiv Preprints},
      volume       = {1},
      reportid     = {FZJ-2024-00928},
      pages        = {up79},
      year         = {2022},
      abstract     = {One of the possible SOFC system-configurations providing
                      the highest potential of electrical DC-efficiency of up to
                      $65\%$ is a SOFC-system with anode exhaust gas recirculation
                      (AEGR), where part of the depleted anode exhaust gas is
                      recirculated and mixed with fresh natural gas upstream of
                      the reformer. For safe and durable operation of a
                      SOFC-system, the oxygen-to-carbon-ratio and the fuel
                      utilization as characteristic parameters must not exceed
                      stack- and reformer-specific thresholds. The determination
                      and control of the characteristic parameters are therefore
                      of crucial importance. However, this poses especially for
                      SOFC-systems with AEGR due to enhanced system complexity a
                      challenging task. In this paper, the authors present an
                      overview on representative control strategies as well as
                      different approaches to determine or diagnose characteristic
                      parameters with emphasis on SOFC-systems with AEGR. Some
                      conclusions are discussed based on the provided overview and
                      outlines recommendations for future research work.},
      cin          = {IEK-9},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)25},
      doi          = {10.31224/osf.io/uep79},
      url          = {https://juser.fz-juelich.de/record/1021682},
}