Design of an Indirect Dryer with Coupling of Solar Collectors and its Thermal Characterization by Drying the Mint Leaves (Mentha spicate)

Authors

  • Margarita Castillo Téllez Facultad de Ingeniería, Universidad Autónoma de Campeche, Campus V, predio s/n por Av Humberto Lanz Cárdenas y Unidad Habitacional Ecológica ambiental, Col. Ex Hacienda Kalá, C.P. 24085, San Francisco de Campeche, Campeche, México
  • Beatriz Castillo-Téllez Centro Universitario Del Norte, Universidad De Guadalajara. Carretera Federal No. 23, Km. 191, C.P. 46200, Colotlán, Jalisco, México
  • Alberto Mejía Pérez Gerardo Centro Universitario Del Norte, Universidad De Guadalajara. Carretera Federal No. 23, Km. 191, C.P. 46200, Colotlán, Jalisco, México
  • Rachid Marzoug Centro Universitario Del Norte, Universidad De Guadalajara. Carretera Federal No. 23, Km. 191, C.P. 46200, Colotlán, Jalisco, México
  • Diana C. Mex Álvarez Facultad de Ingeniería, Universidad Autónoma de Campeche, Campus V, predio s/n por Av Humberto Lanz Cárdenas y Unidad Habitacional Ecológica ambiental, Col. Ex Hacienda Kalá, C.P. 24085, San Francisco de Campeche, Campeche, México

DOI:

https://doi.org/10.14207/ejsd.2021.v10n1p411

Keywords:

Solar drying, Hybrid dryers, Drying kinetics, Solar technologies, Heat exchanger, Thermal characterization

Abstract

Man has used solar energy to dry perishable products for many years, managing to preserve a wide variety of foods naturally; drying is a method that highly respects the food's properties and nutritional content. The consumption of medicinal and aromatic herbs in Mexico is traditional and widespread. In this work, an analysis of an indirect solar dryer's thermal behavior was carried out with the coupling of solar technologies (water heaters and air collectors and photovoltaic pumping as an aid to the generation of hot air) comparing with electric oven drying in Campeche, Campeche, Mexico. The experimental results showed that the indirect tunnel type dryer that works with evacuated tubes and solar air heater simultaneously is the most efficient technology, with average drying times of 300 min and final humidity of 9.6%. A study of colorimetry, water activity, and drying speed was carried out to control the drying process. It was found that it is possible to use solar energy to dry food as a means of conservation in warm-humid climates, also obtaining significant energy savings and contributing to caring for the environment.

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Published

2021-02-01

How to Cite

Téllez, M. C. ., Castillo-Téllez, B. ., Gerardo, A. M. P. ., Marzoug, R. ., & Álvarez, D. C. M. . (2021). Design of an Indirect Dryer with Coupling of Solar Collectors and its Thermal Characterization by Drying the Mint Leaves (Mentha spicate). European Journal of Sustainable Development, 10(1), 411. https://doi.org/10.14207/ejsd.2021.v10n1p411

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Articles