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Modelling the carrot thin-layer drying in a semi-industrial continuous band dryer

Czech Journal of Food Sciences, 2011-01, Vol.29 (5), p.528-538 [Peer Reviewed Journal]

2011. This work is published under https://www.agriculturejournals.cz/web/about/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1212-1800 ;EISSN: 1805-9317 ;DOI: 10.17221/158/2010-CJFS

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Title:
Modelling the carrot thin-layer drying in a semi-industrial continuous band dryer
Author: Aghbashlo, M.,University of Tehran, Pakdasht (Iran Islamic Republic). Dept. of Agrotechnology ; Kianmehr, M.H.,University of Tehran, Pakdasht (Iran Islamic Republic). Dept. of Agrotechnology ; Arabhosseini, A.,University of Tehran, Pakdasht (Iran Islamic Republic). Dept. of Agrotechnology ; Nazghelichi, T.,University of Tehran, Pakdasht (Iran Islamic Republic). Dept. of Agrotechnology
Subjects: Activation energy ; AIR FLOW ; AIR TEMPERATURE ; CAROTTE ; carrot ; CARROTS ; CONTENIDO DE HUMEDAD ; CONTINUOUS PROCESSES ; DAUCUS CAROTA ; DRYERS ; Drying ; effective moisture diffusivity ; FLUJO DE AIRE ; FLUX D'AIR ; FOOD PROCESSING ; FOOD TECHNOLOGY ; HOT AIR DRYING ; http://www.fao.org/aos/agrovoc#c_2132 ; http://www.fao.org/aos/agrovoc#c_230 ; http://www.fao.org/aos/agrovoc#c_2401 ; http://www.fao.org/aos/agrovoc#c_24098 ; http://www.fao.org/aos/agrovoc#c_24199 ; http://www.fao.org/aos/agrovoc#c_25799 ; http://www.fao.org/aos/agrovoc#c_27493 ; http://www.fao.org/aos/agrovoc#c_3030 ; http://www.fao.org/aos/agrovoc#c_32808 ; http://www.fao.org/aos/agrovoc#c_37969 ; http://www.fao.org/aos/agrovoc#c_4886 ; http://www.fao.org/aos/agrovoc#c_9640 ; mathematical modelling ; MATHEMATICAL MODELS ; MODELE MATHEMATIQUE ; MODELOS MATEMATICOS ; Moisture ; MOISTURE CONTENT ; PROCEDE CONTINU ; PROCESAMIENTO DE ALIMENTOS ; PROCESO CONTINUO ; Regression analysis ; SECADO POR AIRE CALIENTE ; SECADORAS ; SECHAGE PAR AIR CHAUD ; SECHOIR ; semi-industrial-continuous band dryer ; TECHNOLOGIE ALIMENTAIRE ; TECNOLOGIA DE ALIMETOS ; TEMPERATURA DEL AIRE ; TEMPERATURE DE L'AIR ; TENEUR EN EAU ; thin-layer drying ; TRAITEMENT DES ALIMENTS ; VELOCIDAD ; VELOCITY ; VITESSE ; ZANAHORIA
Is Part Of: Czech Journal of Food Sciences, 2011-01, Vol.29 (5), p.528-538
Description: This paper presents a mathematical modelling of the drying process in a semi-industrial continuous band dryer. Carrot slices with the thickness of 5 mm were used for the drying experiments. The experiments were conducted at three air temperatures, 50, 60, and 70 deg C, three air velocities, 0.5, 1.0, and 1.5 m/s, and three chain linear velocities, 2.38 x 10**-4, 2.78 x 10**-4, and 3.33 x 10**-4 m/s with three replications for each treatment. The Lewis, Henderson and Pabis, and Page models were fitted to the experimental data of the moisture ratio against the sample position using non-linear regression analysis by MATLAB computer programme. The models were compared based on their coefficients of determination (R2), root mean square errors (RMSE), and reduced chi-squares between the experimental and predicted moisture ratios. Consequently, the Page model was selected as the best mathematical model to describe the drying kinetics of the carrot slices. The correlations of the Page model constants k and m with the variables T, Ua and Uc were determined. The effective moisture diffusivity varied from 3.21 x 10**-7 to 8.98 x 10**-7 square m/s. The energy of activation varied from 23.02 kJ/mol to 28.1 kJ/mol using Arrhenius type equation.
Publisher: Prague: Czech Academy of Agricultural Sciences (CAAS)
Language: English;Czech;Slovak
Identifier: ISSN: 1212-1800
EISSN: 1805-9317
DOI: 10.17221/158/2010-CJFS
Source: GFMER Free Medical Journals
ProQuest Central
DOAJ Directory of Open Access Journals

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Modelling the carrot thin-layer drying in a semi-industrial continuous band dryer

2011. This work is published under https://www.agriculturejournals.cz/web/about/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1212-1800 ;EISSN: 1805-9317 ;DOI: 10.17221/158/2010-CJFS

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