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@PHDTHESIS{Jacobs:1011677,
      author       = {Jacobs, Sascha},
      othercontributors = {Heufer, Karl Alexander and Kasper, Tina},
      title        = {{E}xperimentelle und theoretische {U}ntersuchung der
                      {R}eaktionskinetik im {N}ieder- und {H}ochtemperaturbereich
                      von verschiedenen {D}i-{E}thern: {OME}ₓ und {DEM}},
      school       = {Rheinisch-Westfälische Technische Hochschule Aachen},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {RWTH Aachen University},
      reportid     = {RWTH-2025-04649},
      pages        = {1 Online-Ressource : Illustrationen},
      year         = {2025},
      note         = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University; Dissertation, Rheinisch-Westfälische Technische
                      Hochschule Aachen, 2025},
      abstract     = {The present work aims is to gain a comprehensive insight
                      into the chemical kinetics of combustion processes in the
                      high- and low-temperature range of alternative, CO2-neutral
                      fuels. In this context, oxymethylene ethers (OMEx:
                      CH3O-[CH2O]x-CH3) and diethoxymethane (DEM: C2H5O-CH2O-C2H5)
                      have been identified as promising substitutes or additives
                      for fossil diesel fuel in the transportation sector due to
                      their chemical and physical properties. A main focus of the
                      investigation is the oxidation behavior of dimethoxymethane
                      (OME1), as well as the influence of the molecular structure
                      on the combustion kinetics by extension of the CH2O group
                      within the molecular structure of OME1 or replacing the
                      methyl group by an ethyl group at the terminals. Consistent
                      and detailed chemical kinetic reaction mechanisms were
                      developed in order to gain a fundamental understanding of
                      the combustion chemistry and for computational modeling of
                      the combustion process. In order to consider the chemical
                      processes that occur during ignition delay separately from
                      the physical processes, fundamental investigations of the
                      ignition characteristics were carried out in a shock tube
                      and a rapid compression machine depending on pressure,
                      temperature, and equivalence ratio under engine-relevant
                      conditions. A systematic investigation of the ignition
                      behavior showed that increasing the chain length, changes
                      the ignition characteristics and increases the reactivity.
                      Furthermore, it was observed that these promising and highly
                      reactive fuel candidates did not exhibit a negative
                      temperature coefficient. Based on numerical investigations
                      of the combustion chemistry, it was shown that despite these
                      differences, these fuels have significant similarities in
                      their complex reaction kinetics. The holistic approach of
                      modeling and experiments, presented in this work, is
                      essential for a complete fuel consideration and evaluation
                      to ultimately ensure safe and reliable as well as
                      low-emission engine operation.},
      cin          = {415510},
      ddc          = {620},
      cid          = {$I:(DE-82)415510_20190928$},
      typ          = {PUB:(DE-HGF)11},
      doi          = {10.18154/RWTH-2025-04649},
      url          = {https://publications.rwth-aachen.de/record/1011677},
}