Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan Saffron

This work deals with the study of the drying kinetics of Crocus sativus L. using convective solar drying. The main objective was to identify the influence of airflow drying temperatures for ambient air temperature ranged between 15.6 and 18.9°C, and a relative humidity between 24.4 and 46.5%. The eq...

Full description

Saved in:
Bibliographic Details
Main Authors: Khadija Oubella, Hind Mouhanni, Younes Bahammou, Ali Idlimam, Abdelkader Lamharrar, Abdelaziz Bendou
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2022/1656862
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832553589788114944
author Khadija Oubella
Hind Mouhanni
Younes Bahammou
Ali Idlimam
Abdelkader Lamharrar
Abdelaziz Bendou
author_facet Khadija Oubella
Hind Mouhanni
Younes Bahammou
Ali Idlimam
Abdelkader Lamharrar
Abdelaziz Bendou
author_sort Khadija Oubella
collection DOAJ
description This work deals with the study of the drying kinetics of Crocus sativus L. using convective solar drying. The main objective was to identify the influence of airflow drying temperatures for ambient air temperature ranged between 15.6 and 18.9°C, and a relative humidity between 24.4 and 46.5%. The equilibrium moisture content varies from 0.09 to 0.06 (% d.b), respectively, for drying air temperatures 35–50°C. The airflow velocity was about 0.2 m s−1, which implied establishing a phenomenological diffusion model of the water within the matrix. Empirical models were also determined as well as a polynomial equation (order 3) of the characteristic drying curve. The Midilli–Kucuk model was found to be the best to describe the experimental drying curves of Crocus sativus L. The effective moisture diffusivity ranged between 0.87 and 1.46 10−11 m2 s−1 for airflow temperature 35 and 50°C, while the average activation energy was calculated as 28.76 kJ mol−1. The increase in temperature decreases the total energy consumption which varies, respectively, from 3.211 to 2.681 kWh.
format Article
id doaj-art-1bb3ace9317048febda25476b2bcd35f
institution Kabale University
issn 1537-744X
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series The Scientific World Journal
spelling doaj-art-1bb3ace9317048febda25476b2bcd35f2025-02-03T05:53:35ZengWileyThe Scientific World Journal1537-744X2022-01-01202210.1155/2022/1656862Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan SaffronKhadija Oubella0Hind Mouhanni1Younes Bahammou2Ali Idlimam3Abdelkader Lamharrar4Abdelaziz Bendou5Research Team MaterialsResearch Team MaterialsLaboratory of Solar Energy and Medicinal PlantsLaboratory of Solar Energy and Medicinal PlantsLaboratory of Solar Energy and Medicinal PlantsResearch Team MaterialsThis work deals with the study of the drying kinetics of Crocus sativus L. using convective solar drying. The main objective was to identify the influence of airflow drying temperatures for ambient air temperature ranged between 15.6 and 18.9°C, and a relative humidity between 24.4 and 46.5%. The equilibrium moisture content varies from 0.09 to 0.06 (% d.b), respectively, for drying air temperatures 35–50°C. The airflow velocity was about 0.2 m s−1, which implied establishing a phenomenological diffusion model of the water within the matrix. Empirical models were also determined as well as a polynomial equation (order 3) of the characteristic drying curve. The Midilli–Kucuk model was found to be the best to describe the experimental drying curves of Crocus sativus L. The effective moisture diffusivity ranged between 0.87 and 1.46 10−11 m2 s−1 for airflow temperature 35 and 50°C, while the average activation energy was calculated as 28.76 kJ mol−1. The increase in temperature decreases the total energy consumption which varies, respectively, from 3.211 to 2.681 kWh.http://dx.doi.org/10.1155/2022/1656862
spellingShingle Khadija Oubella
Hind Mouhanni
Younes Bahammou
Ali Idlimam
Abdelkader Lamharrar
Abdelaziz Bendou
Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan Saffron
The Scientific World Journal
title Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan Saffron
title_full Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan Saffron
title_fullStr Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan Saffron
title_full_unstemmed Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan Saffron
title_short Influence of Drying Temperature on the Different Thermodynamic Parameters during the Indirect Convective Solar Drying of Crocus sativus L. Of Morocco Thin-Layer Solar Drying of Moroccan Saffron
title_sort influence of drying temperature on the different thermodynamic parameters during the indirect convective solar drying of crocus sativus l of morocco thin layer solar drying of moroccan saffron
url http://dx.doi.org/10.1155/2022/1656862
work_keys_str_mv AT khadijaoubella influenceofdryingtemperatureonthedifferentthermodynamicparametersduringtheindirectconvectivesolardryingofcrocussativuslofmoroccothinlayersolardryingofmoroccansaffron
AT hindmouhanni influenceofdryingtemperatureonthedifferentthermodynamicparametersduringtheindirectconvectivesolardryingofcrocussativuslofmoroccothinlayersolardryingofmoroccansaffron
AT younesbahammou influenceofdryingtemperatureonthedifferentthermodynamicparametersduringtheindirectconvectivesolardryingofcrocussativuslofmoroccothinlayersolardryingofmoroccansaffron
AT aliidlimam influenceofdryingtemperatureonthedifferentthermodynamicparametersduringtheindirectconvectivesolardryingofcrocussativuslofmoroccothinlayersolardryingofmoroccansaffron
AT abdelkaderlamharrar influenceofdryingtemperatureonthedifferentthermodynamicparametersduringtheindirectconvectivesolardryingofcrocussativuslofmoroccothinlayersolardryingofmoroccansaffron
AT abdelazizbendou influenceofdryingtemperatureonthedifferentthermodynamicparametersduringtheindirectconvectivesolardryingofcrocussativuslofmoroccothinlayersolardryingofmoroccansaffron