Study and Simulation Drying Kinetics of Date Fruit Slices in a Hybrid Electrohydrodynamic-Convective Dryer

Document Type : Research Paper

Authors

1 Ph.D. Graduated, Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

2 Professor, Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

3 Associate Professor, Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

4 Associate Professor, Mechanical Engineering of Biosystem Department, Faculty of Agriculture, University of Shahrekord, Shahrekord, Iran

Abstract

Electrohydrodynamic drying as a non-thermal method of drying increases the quality of dried products at ambient temperature. Considering the importance of using advanced methods in date fruit drying, in this study, an electrohydrodynamic-convective dryer equipped with temperature control system was developed to model the drying process of date fruit (cv. Shahani) slices based on changes in moisture ratio per drying time in electrohydrodynamic (EHD), hot air (HA) and the hybrid (EHD-HA) drying methods. Results showed as the air velocity increased, the drying time in 25 and 35 °C of EHD drying increased while increasing in air velocity, decrease the drying time in both HA and EHD-HA drying methods.

Keywords

References

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Iranian Journal of Biosystems Engineering
Volume 49, Issue 3
November 2018
Pages 489-500

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History

  • Receive Date: 01 December 2017
  • Revise Date: 20 January 2018
  • Accept Date: 23 January 2018

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