Modelling the Dehydration Characteristics of Taro (Colocasia Esculenta) Slices in a Convective Cabinet Dryer

Authors

  • A. P. Olalusi

    Federal University of Technology Akure

  • M. S. Obot

    Federal University of Technology Akure

  • A. S. Ogunlowo

    Federal University of Technology Akure

DOI:
https://doi.org/10.51459/futajeet.2014.8.1.8
Keywords:
Taro, thin layer dehydration models, air temperature, sample thickness
Abstract

This study was undertaken to determine the thin layer dehydration characteristics of Taro (Colocasia esculenta) slices in a convective cabinet dryer. The dehydration characteristics of the untreated taro slices were examined at air temperatures of 50, 60 and 70°C, sample thickness of 4 and 8 mm and at air velocity of 1.2 m/s. The effects of air temperature and sample thickness on the dehydration characteristics were determined. The experimental data obtained were fitted to eight thin layer dehydration models which are Newton, Page, Modified page, Henderson and Pabis, Logarithmic, Two terms, Wang and Singh, and the Two term exponential models. The regression was done using Sigma plots 10 statistical software. The accuracies of the models were measured using four statistics namely the coefficient of determination (R2), Reduced Chi square (χ2), Root mean square error (RMSE), and the Mean bias error (MBE). All the drying models used, except the Modified Page's model, were able to describe the dehydration characteristics of taro slices. However, the Logarithmic model proved to be the most précised for the description of the dehydration of the taro slices in a convective cabinet dryer.

Author Biographies
  1. A. P. Olalusi, Federal University of Technology Akure
    Department of Agricultural and Environmental Engineering
  2. M. S. Obot, Federal University of Technology Akure
    Department of Agricultural and Environmental Engineering
  3. A. S. Ogunlowo, Federal University of Technology Akure
    Department of Agricultural and Environmental Engineering
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Published
2019-01-02
Issue
Vol. 8 No. 1 (2014): FUTA Journal of Engineering and Engineering Technology
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How to Cite

Modelling the Dehydration Characteristics of Taro (Colocasia Esculenta) Slices in a Convective Cabinet Dryer. (2019). FUTA JOURNAL OF ENGINEERING AND ENGINEERING TECHNOLOGY, 8(1), 13-19. https://doi.org/10.51459/futajeet.2014.8.1.8

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