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@PHDTHESIS{Bendzulla:9767,
      author       = {Bendzulla, Anne},
      title        = {{V}on der {K}omponente zum {S}tack: {E}ntwicklung und
                      {A}uslegung von {HT}-{PEFC}-{S}tacks der 5 k{W}-{K}lasse},
      volume       = {69},
      issn         = {1866-1793},
      school       = {RWTH Aachen},
      type         = {Dr. (Univ.)},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {PreJuSER-9767},
      isbn         = {978-3-89336-634-7},
      series       = {Schriften des Forschungszentrums Jülich : Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {IX, 203 S.},
      year         = {2010},
      note         = {Record converted from VDB: 12.11.2012; RWTH Aachen, Diss.,
                      2010},
      abstract     = {Numerous areas of application, such as aviation or heavy
                      goods transport, have no medium-term alternative to the
                      middle distillates currently in use, namely diesel and
                      kerosene. For both economic and environmental reasons,
                      optimizing the efficiency of the systems in use is therefore
                      a key objective. In achieving this objective, fuel cells are
                      a promising option. Due to the lacking hydrogen
                      infrastructure, fuel cells are equipped with an on-board
                      supply system. The hightemperature polymer electrolyte fuel
                      cell (HT-PEFC) is particularly suitable for such
                      applications due to its high CO tolerance, simple water and
                      heat management, and moderate material loads. The aim of the
                      present project is to develop a stack design for a 5-kW
                      HTPEFC system. First, the state of the art of potential
                      materials and process designs will be discussed for each
                      component. Then, using this as a basis, three potential
                      stack designs with typical attributes will be developed and
                      assessed in terms of practicality with the aid of a
                      specially derived evaluation method. Two stack designs
                      classified as promising will be discussed in detail,
                      constructed and then characterized using short stack tests.
                      Comparing the stack designs reveals that both designs are
                      fundamentally suitable for application in a HT-PEFC system
                      with on-board supply. However, some of the performance data
                      differ significantly for the two stack designs. The
                      preferred stack design for application in a HT-PEFC system
                      is characterized by robust operating behaviour and
                      reproducible high-level performance data. Moreover, in
                      compact constructions (120 W/l at 60 W/kg), the stack design
                      allows flexible cooling with thermal oil or air, which can
                      be adapted to suit specific applications. Furthermore, a
                      defined temperature gradient can be set during operation,
                      allowing the CO tolerance to be increased by up to 10 mV.
                      The short stack design developed within the scope of the
                      present work therefore represents an ideal basis for
                      developing a 5-kW HT-PEFC system. Topics for further
                      research activities include improving the performance by
                      reducing weight and/or volume, as well as optimizing the
                      heat management. The results achieved within the framework
                      of this work clearly show that HTPEFC stacks have the
                      potential to play a decisive role in increasing efficiency
                      in the future, particularly when combined with an on-board
                      supply system.},
      cin          = {IEF-3},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)VDB811},
      pnm          = {Rationelle Energieumwandlung},
      pid          = {G:(DE-Juel1)FUEK402},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      url          = {https://juser.fz-juelich.de/record/9767},
}