Computational Fluid Dynamic Modeling and Simulation of Red Chili Solar Cabinet Dryer

  • Eshetu GetahunEmail author
  • Maarten Vanierschot
  • Nigus Gabbiye
  • Mulugeta A. Delele
  • Solomon Workneh
  • Mekonnen Gebreslasie
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 308)


Red chilies are important sources of nutrients for human diet. It is known that improper handling of the produces causes a significant loss. Drying is a primary and suitable preservation system of chili products before storage to minimize mold/mycotoxin development. This study investigates the potential of solar cabinet chili dryer through rigorous computational fluid dynamic modeling by considering red chili as porous media. The k-ε turbulence model was utilized to effectively predict the uniformity of drying air velocity, pressure and mass transfer. It was found that the CFD simulation gives accurate prediction of the drying air and velocity and pressure distribution in each tray at inlet air velocity of 1.5 m/s. The solar absorber temperature was reached up to 54 °C and the drying chamber temperature was in the range of 34–38 °C. The performance of the dryer was very promising to keep the quality of the dried red chili products.


Solar cabinet dryer Red chili CFD modeling Moisture transfer 



The research fund was granted from Bahir Dar Energy Center, Bahir Dar Institute of technology, Bahir Dar University, Ethiopia.


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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2020

Authors and Affiliations

  • Eshetu Getahun
    • 1
    • 2
    Email author
  • Maarten Vanierschot
    • 3
  • Nigus Gabbiye
    • 1
  • Mulugeta A. Delele
    • 4
  • Solomon Workneh
    • 1
  • Mekonnen Gebreslasie
    • 3
  1. 1.Faculty of Chemical and Food Engineering, Bahir Dar Technology InstituteBahir Dar UniversityBahir DarEthiopia
  2. 2.Bahir Dar Energy Center, Bahir Dar Technology InstituteBahir Dar UniversityBahir DarEthiopia
  3. 3.Mechanical Engineering Technology Cluster TC, Campus Groep TKU LeuvenLouvainBelgium
  4. 4.Department of Biosystems, MeBioSKU Leuven, University of LeuvenLouvainBelgium

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