Blar i Institutt for energi og prosessteknikk på forfatter "Madsen, Kenneth B."

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    • Numerical investigation of heat transfer in a CO2 two-phase ejector 

      Haida, Michal; Smolka, Jacek; Hafner, Armin; Mastrowski, Mikolaj; Palacz, Michal; Madsen, Kenneth B.; Nowak, Andrzej J.; Banasiak, Krzysztof (Journal article; Peer reviewed, 2018)
      In this paper, the influence of heat transfer in the walls of an R744 two-phase ejector on ejector performance was investigated. A numerical investigation was performed using a computational fluid dynamic (CFD) model of ...

    • Performance mapping of the R744 ejectors for refrigeration and air conditioning supermarket application: A hybrid reduced-order model 

      Haida, Michal; Smolka, Jacek; Hafner, Armin; Ostrowski, Zeimowit; Palacz, Michal; Madsen, Kenneth B.; Försterling, Sven; Nowak, Andrzej J.; Banasiak, Krzysztof (Journal article; Peer reviewed, 2018)
      The continuous derivation of the ambient temperature and cooling demand in CO2 refrigeration and air-conditioning systems equipped with multi-ejector modules for supermarkets requires the analysis of the fixed ejector ...

    • The R744 multi-ejector hybrid CFD and experimentally-based reduced-order model 

      Haida, Michal; Smolka, Jacek; Hafner, Armin; Palacz, Michal; Ostrowski, Zeimowit; Madsen, Kenneth B.; Försterling, Sven; Nowak, Andrzej J.; Banasiak, Krzysztof (Chapter, 2018)
      The proposed hybrid reduced-order model (HROM) of the four R744 fixed ejectors installed in the multiejector module is presented. The ejectors HROM was built by use of the proper orthogonal decomposition together with the ...