Journal of Agricultural Science and Technology
Journal of Agricultural Science and Technology
JAST
Agriculture
http://jast.modares.ac.ir
1
admin
1680-7073
2345-3737
10.22034/jast
en
jalali
1389
12
1
gregorian
2011
3
1
13
2
online
1
fulltext
en
Evaluation of Thin-Layer Drying Models for Simulation of Drying Kinetics of Quercus (Quercus persica
and Quercus libani)
Drying characteristics of Quercus were determined experimentally as a function of temperature, air velocity, and variety (Quercus Persica and Quercus Libani). In order to estimate and select a suitable drying curve, five different thin layer drying models were fitted to the experimental data. Experiments were performed at the air temperatures of 50, 60 and 70°C. At each temperature level, two air velocities were adjusted: 0.5 and 1m/s. The effect of air temperature was found to be significant in comparison to air velocity for drying of fresh Quercus fruits. Increasing air velocity at constant air temperature resulted in the decrease of drying time. Among all the selected drying models, the Page model was found as the best mathematical model for describing the drying kinetics of Quercus fruits. Based on the results, drying temperature of 70 oC and air velocity of 1 m/s are the optimum values for drying Quercus fruit. Drying time and Page model constants were found to be dependent significantly on the variables studied.
Drying kinetics,Drying temperature,Page model,Quercus,Thin-Layer drying model
155
163
http://jast.modares.ac.ir/browse.php?a_code=A-10-1000-204&slc_lang=en&sid=23
M.
Tahmasebi
M.
Tahmasebi
100319475328460045641
100319475328460045641
No
Department of Agricultural Machinery Engineering, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
Department of Agricultural Machinery Engineering, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
T.
Tavakkoli Hashjin
T.
Tavakkoli Hashjin
100319475328460045642
100319475328460045642
Yes
Department of Agricultural Machinery Engineering, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
Department of Agricultural Machinery Engineering, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
M. H.
Khoshtaghaza
M. H.
Khoshtaghaza
100319475328460045643
100319475328460045643
No
Department of Agricultural Machinery Engineering, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
Department of Agricultural Machinery Engineering, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
A.
Nikbakht
A.
Nikbakht
100319475328460045644
100319475328460045644
No
Department of Mechanical Engineering in Agricultural Machinery, Faculty of Agriculture, Urmia University, Urmia, Islamic Republic of Iran.
Department of Mechanical Engineering in Agricultural Machinery, Faculty of Agriculture, Urmia University, Urmia, Islamic Republic of Iran.