Stationary and transient aspects of air flow in a novel Radial Multi-Zone Dryer

Umair Jamil Ur Rahman, Artur Krzysztof Pozarlik, Ilias Baiazitov, Axel de Broqueville, Juray De Wilde, Gerrit Brem

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In order to develop a commercially viable alternative spray drying technology, a high drying rate in a small volume must be achieved whilst maintaining a small residence time. This can be accomplished in a radial multizone dryer where high air inlet temperatures and high-G fluidization leads to enhanced drying rates. In this paper, results of CFD model are presented and validated against experimental data. The results show radial oscillations of central hot air flow with a frequency of 3.5 Hz.
Original languageEnglish
Number of pages6
Publication statusPublished - 12 Jul 2019
Event7th European Drying Conference, EuroDrying' 2019 - Politecnico di Torino, Torino, Italy
Duration: 10 Jul 201912 Jul 2019
Conference number: 7


Conference7th European Drying Conference, EuroDrying' 2019
Abbreviated titleEuroDrying' 2019
Internet address


  • spray dryer
  • vortex chamber
  • CFD
  • process intensification


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