Energy and exergy of potato drying process via cyclone type dryer

E. Kavak Akpinar*, A. Midilli, Y. Bicer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

128 Citations (Scopus)


This paper is concerned with the energy and exergy analyses of the single layer drying process of potato slices via a cyclone type dryer. Using the first law of thermodynamics, an energy analysis was performed to estimate the ratios of energy utilization. An exergy analysis was accomplished to determine the location, type and magnitude of the exergy losses during the drying process by applying the second law of thermodynamics. It was concluded that the exergy losses took place mostly in the 1st tray where the available energy was less utilized during the single layer drying process of potato slices. It is emphasized that the potato slices are sufficiently dried in the ranges between 60 and 80 °C and 20-10% relative humidity at 1 and 1.5 ms-1 of drying air velocity during 10-12 h despite the exergy losses of 0-1.796 kJ s-1.

Original languageEnglish
Pages (from-to)2530-2552
Number of pages23
JournalEnergy Conversion and Management
Issue number15-16
Publication statusPublished - Sept 2005
Externally publishedYes


The authors thank Firat University for financial and technical supports.

FundersFunder number
Firat Üniversitesi


    • Drying
    • Energy analysis
    • Exergy analysis
    • Potato slices


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