Keding, Marcus

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Official Name
Keding, Marcus
Main Affiliation
Akademische Titel
DI
Email
marcus.keding@forschung-burgenland.at
Scopus Author ID
36468736300
Status
staff

Research Outputs

2010 2010 2009 2009 2008 2008 0.0 0.0 0.2 0.2 0.4 0.4 0.6 0.6 0.8 0.8 1.0 1.0

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  • Thumbnail Image
    Publication
    Improved µ-scale Turbine Expander for Energy Recovery
    (ASME, 2010-06-14)
    Keding, Marcus 
    ;
    Dudzinski, Piotr 
    ;
    Reissner, Alexander 
    ;
    Hummel, Stefan 
    ;
    Tajmar, Martin 
      138  733Scopus© Citations 3
  • No Thumbnail Available
    Publication
    Development of a Ti-doped Sodium Alanate Hydrogen Storage System
    (2009)
    Keding, Marcus 
    ;
    Reissner, Alexander 
    ;
    Dudzinski, Piotr 
    ;
    Tajmar, Martin 
    A trade-off analysis regarding power supply on satellites, which was performed for the European Space Agency (ESA), suggested that fuel cells might be an interesting candidate to replace secondary batteries on satellites. The Austrian Research Centers (ARC) decided to approach this topic by combining a fuel cell with innovative chemical hydrogen and oxygen storage as well as integrating the oxygen storage system into a form that can be used as a structural element. Also an integration of the fuel cell into the hydrogen tank, and the resulting storage of dissipation heat, results in a reduction of the necessary thermal control system. These advantages are very interesting in order to obtain higher weight efficiencies, which are especially important for space and automotive applications. The complete system includes a hydrogen storage tank based on Ti-doped sodium alanate and a novel oxygen tank based on YBaCo4O7 developed at ARC. Water tanks and a micro-fluidic system connected to the fuel cell have been considered as well in order to provide a completely reversible system, competitive to batteries. For the hydrogen storage, a finite elements model has been developed, implementing the reaction kinetics of the storage process, in order to predict the thermal mechanisms during adsorption and desorption of hydrogen in sodium alanate. The present paper discusses these simulations, the development of an experimental hydrogen storage tank and the proposed concepts of a battery replacement system.
      97  1
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    Publication
    Development of Innovative Hydrogen and Micro Energy Solutions at the Austrian Research Centers
    (American Institute of Aeronautics and Astronautics, 2008-07-28)
    Keding, Marcus 
    ;
    Tajmar, Martin 
    ;
    Dudzinski, Piotr 
    ;
    Reissner, Alexander 
      180  500Scopus© Citations 5