Convective drying of sweet pepper (Capsicum annuum L. 'Tres Cantos') and yellow onion (Allium cepa L. 'Yellow Granex F1')

Authors

  • Joseph Orozco Facultad de Ingeniería Química, Universidad Nacional de Ingeniería (UNI) Avenida Universitaria, Managua 11127, Nicaragua
  • Juan Alonso Facultad de Ingeniería Química, Universidad Nacional de Ingeniería (UNI) Avenida Universitaria, Managua 11127, Nicaragua
  • Rafael Gamero Facultad de Ingeniería Química, Universidad Nacional de Ingeniería (UNI) Avenida Universitaria, Managua 11127, Nicaragua
  • Apolinar Picado Department of Chemical Engineering, KTH Royal Institute of Technology Teknikringen 42, SE-100 44 Stockholm, Sweden

DOI:

https://doi.org/10.5377/nexo.v36i05.17302

Keywords:

Sweet pepper, Onion, Drying, Shrinkage, Characteristic drying curve

Abstract

In this study, the drying kinetics of sweet pepper (Capsicum annuum L. 'Tres Cantos') and yellow onion (Allium cepa L. 'Yellow Granex F1') was experimentally investigated in a lab-scale tunnel dryer. The drying experiments were performed at three air temperatures (50, 60, and 70 °C) and three air velocities (1.0, 1.5, and 2.0 m/s). A volumetric shrinkage linear model from the literature was used to include the shrinkage effect on the drying process. From the drying curves, no constant rate period was observed. The drying process took place in a falling rate period. It was found that the changes in air velocity had essentially no effect on the drying process. In addition, a non-linear regression analysis was employed to determine the characteristic drying curve.

Downloads

Download data is not yet available.

Downloads

Published

2023-11-30

How to Cite

Orozco, J., Alonso, J., Gamero, R., & Picado, A. (2023). Convective drying of sweet pepper (Capsicum annuum L. ’Tres Cantos’) and yellow onion (Allium cepa L. ’Yellow Granex F1’). Nexo Scientific Journal, 36(05), 136–146. https://doi.org/10.5377/nexo.v36i05.17302

Issue

Vol. 36 No. 05 (2023): In commemoration of the 40th anniversary of the founding of the National University of Engineering

Section

Articles

License

Copyright (c) 2023 Array

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The authors who publish in Nexo Scientific Journal agree to the following terms:

  • Authors retain the copyright and grant the journal the right of the first publication under the license Creative Commons Attribution License https://creativecommons.org/licenses/by/3.0/, which allows others to share the work with a recognition of the authorship of the work and the initial publication in Nexo Scientific Journal.
  • Authors may separately establish additional agreements for the non-exclusive distribution of the version of the work published in the journal (for example, in an institutional repository or a book), with the recognition of the initial publication in Nexo Scientific Journal.
  • Authors are allowed and encouraged to disseminate their works electronically (for example, in institutional repositories or in their own website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published works.

Most read articles by the same author(s)

1 2 > >>