modelling of the drying of eggplants in thin鈥恖ayers
Mathematical Modeling on Hot Air Drying of Thin Layer
7 Doungporn S Poomsa-ad N Wiset L Drying equations of Thai Hom Mali paddy by using hot air carbon dioxide and nitrogen gases as drying media Food Bioprod Process 2012 90 187-198 8 Doymaz I Evaluation of some thin-layer drying models of persimmon slices (Diospyros kaki L ) Energy Conv Manag 2012 56 199-205 9
Mathematical Modeling of Kinetics of Thin
The thin-layer drying kinetics of apple slices was experimentally investigated in a laboratory convective dryer and the mathematical modeling using thin-layer drying models present in the literature was performed The main objective of the study was the verification of models
Modelling of the drying of eggplants in thin
In this paper the thin-layer drying behaviour of eggplant slices (6 mm thick layers) in a convective-type cyclone dryer is reported Thin-layer drying experiments were conducted at drying air temperatures of 55 65 and 75 C and dry air velocities of 1 and 1 5 ms-1
Hot Air Drying Kinetics of Thin Layers of Prickly Pear
For this research four empirical models were employed to fit the drying experimental data Empirical models are presented in Table 1 TABLE 1 Mathematical models for fitting drying of thin layers of prickly pear fruit Model Equation Lewis Henderson and Pabis Peleg Page MR = exp(-kt) MR = a exp(-kt) M t = M o – t/(k 1 + k 2 t) MR = exp(-ktn
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model in two directions: along the conveyor and perpendicular on it The mathe-matical model consists of two non-linear differential equations and one equation with a transcendent character and it is based on the mathematical model devel-oped for drying process in a form of a 1-D thin layer The appropriate boundary conditions were introduced
Analyzing drying characteristics and modeling of thin
Analyzing drying characteristics and modeling of thin layers of peppermint leaves under hot-air and infrared treatments Seyed-Hassan Miraei Ashtiani* Alireza Salarikia Mahmood Reza Golzarian Department of Biosystems Engineering Faculty of Agriculture Ferdowsi University of Mashhad Mashhad Iran
Mathematical modeling of thin layer drying kinetics and
Various semi empirical drying models of the lumped parameter type like the Newton's model have been described in literature for studying the thin layer drying of food samples For drying model selection moisture ratios were fitted to 14 well known thin layer drying models which are generally applicable for drying of fruits and vegetables
dict_files/eng_com dic
A dictionary file dict_files/eng_com dic This class can parse analyze words and interprets sentences It takes an English sentence and breaks it into words to determine if it is a phrase or a clause It can also counts the total number of words in a sentence checks if a word is a palindrome and can generate a new sentence with almost the same meaning using synonyms
KINETICS OF APRICOT THIN LAYER DRYING IN A MIXED AND
In order to select the most appropriate drying model equation in each mode of drying 10 different models were examined using the thin layer drying experimental data The results of curve fitting were validated by comparing the proper statistical coefficients namely: r χ 2 RMSE using non-linear regression analysis According to the results
Mass Transfer Parameters and Modeling of Hot Air Drying
AbstractMoisture diffusivity (Dem) mass transfer coefficient (hm) activation energy and drying kinetics of the dill leaves were studied and modeled as a function of temperature (40–70 C) and moisture content (0 20–5 67 kg water/kg dry matter) Results showed that the Dem and hm significantly depend on the temperature and moisture content (p 0 05)
Modelling of the drying of eggplants in thin‐layers
In this paper the thin‐layer drying behaviour of eggplant slices (6 mm thick layers) in a convective‐type cyclone dryer is reported Thin‐layer drying experiments were conducted at drying air temperatures of 55 65 and 75 C and dry air velocities of 1 and 1 5 ms −1 Data on sample mass temperature and velocity of the dry air were recorded continuously during each
The Mathematical Modelling of Drying Paint Layers
Many industrial process involve the coating of surfaces with thin layers of paint In this paper we are concerned with predicting the variations in layer thickness which may occur as the paint dries The Mathematical Modelling of Drying Paint Layers | Springer for Research Development
Characterization and modelling of drying of three tropical
An experimental study of convection drying in thin layers of three products (cassava ginger and okras) using a heated wind tunnel was conducted Thermodynamic behaviour of these products was determined for different temperatures (40C and 55C) different air velocities (0 5 to 3 m s-1) and at air moisture content of 15 g water/kg air
SIMULATION OF DEEP BED DRYING OF HAZELNUTS: Drying
Abstract The deep bed drying modelling of hazelnut (Corylus avellana L ) have been studied by considering the deep bed as a series of thin layers A partial differential equations model has been developed to simulate heat and mass transfer in fixed deep bed hazelnut dryers The computer program developed permits the calculation of temperature and moisture content
Mathematical Modelling on Thin Layer Microwave Drying of
Mathematical Modelling on Thin Layer Microwave Drying of Apple Pomace With and Without Hot Air Pre-drying - Free download as PDF File ( pdf) Text File ( txt) or read online for free Mathematical modelling on thin layer microwave drying of apple pomace with and without hot air pre-drying
A mathematical model and simulation of the drying process
The drying process was analyzed in the form of a one-dimensional thin layer The mathematical model of the drying process is a system of two ordinary nonlinear differential equations with constant coefficients and an equation with a transcendent character The appropriate boundary conditions of the mathematical model were given
Mathematical Modeling of Thermal Drying of Facultative
The Midilli model was the best in describing the drying behavior of the three thicknesses (R 2 0 9996) These results support the use of thin layer models for facultative pond sludge drying and it could be a practical tool for dryer projects using large thickness
A study on the drying of food waste prior to the
the drying kinetics of fruits and vegetables The thin-layer drying is one such example of a method widely used to determine the drying kinetics of fruits and vegetables It consists of simultaneous heat and mass transfer operations There is a pressing need for the use of the thin-layer modeling approach as a tool to estimate the
Mathematical Modeling of Kinetics of Thin
modeling efficiency (EF) The thin-layer drying kinetics of apple slices was experimentally investigated in a laboratory convective dryer and the mathematical modeling using thin-layer drying models present in the literature was performed The main objective of the study was the verification of models already developed
Thin Layer Drying Model of Sorghum
The Page model and Thompson model were the most suitable model in the thin layer drying experiment with short grain rice under the conditions of drying temperature of 35~55℃ and relative humidity of 30~60% (Keum and Park 1997) The Page model Thompson model simplified diffusion model and Lewis model were compared in the thin layer drying
Mathematical modelling of thin layer hot air drying of
Ertekin C Yaldiz O Drying of eggplant and selection of a suitable thin layer drying model J Food Eng 2004 63 (3):349–359 doi: 10 1016/j jfoodeng 2003 08 007 Goyal RK Kingsly ARP Manikantan MR Ilyas SM Mathematical modelling of thin layer drying kinetics of plum in a
QUALITY PERFORMANCE ANALYSIS MASS TRANSFER
Akpinar E K and Bicer Y Modelling of the drying of eggplants in thin-layers International Journal of Food Science and Technology 40 273-281 (2005) [ Links ] Akpinar E K Midilli A and Bicer Y The first and second law analyses of thermodynamic of pumpkin drying process Journal of Food Engineering 72(4) 320-331 (2006) [ Links ]
1 Introduction
1 Ertekin C Yaldiz O Drying of eggplant and selection of a suitable thin layer drying model Journal of Food Engineering 2004 63 3 349 359 10 1016/j jfoodeng 2003 08 007 2 Akeredolu A A Adebajo L O Microflora of three dehydrated vegetables British Microbiology Research Journal 2013 3 3 295 308 10 9734/bmrj/2013/3139 3 Sagar V R Suresh
Effect of needle number on drying rate of kiwi fruit in
Electrohydrodynamic (EHD) drying is a novel method of non-thermal processing In this drying method drying can be carried out using either AC or DC high voltages The thermodynamic considerations regarding the lowering of temperature under EHD drying include rapid rates of evaporation and exothermic interaction of the electric field with a dielectric material
Empirical Modeling of Air Dried Rubberwood Drying System
The experimental moisture ratio had a good fit with the empirical model Additionally the results indicated that the drying of rubberwood using the Henderson and Pabis model revealed the suitable level of agreement The result presented an excellent estimation (R = 0 9963) for the moisture movement compared to the other models Therefore
A MATHEMATICAL MODEL AND SIMULATION OF THE
The mathematical model of the "thin layer" drying process is a system of two non-lin-ear ordinary differential equations with constant coefficients and additionally one equation of a transcendent character The model based on [18] was improved [19] in order to obtain appropri-ate drying kinetics of potatoes
Drying characteristics of paddy in an integrated dryer
To select a suitable model for describing the drying process of paddy drying curves were fitted with six thin-layer drying equations The evaluated moisture ratio models are presented in Table 1 Most of the models in Table 1 were derived by simplifying the general solutions of the Fick's second law or the modification of the simplified models Therefore most of them were not
Thin Layer Drying Characteristics of Amaranth Grains in a
There was no significant difference in drying rates when the grains were dried in Layers 1 and 2 of the dryer The Page model best described thin layer drying of the grains attaining the highest R2 (0 994–0 999) and p (80 0–88 2%) and the lowest RMSE (0 0003–0 0240) and χ2 (0 0000–0 0154) values
Journal of Food Akonor and Amankwah
layer Drying was monitored and moisture loss was determined by loss in weight of samples at hourly interval Drying data were fitted to five thin layer models namely Newton's Page's Modified Page Handerson and Pabis and Logarithmic models by Non-linear Regression Analysis the effective diffusivity was also determined for the two leafy
Modeling for Drying of Thin Layer of Native Cassava Starch
Purpose: The drying of a thin layer of native cassava starch in a tray dryer was modeled to establish an equation for predicting the drying behavior under given conditions Methods: Drying tests were performed using samples of native cassava starch over a temperature range of TEX$40-60^{circ}C$/TEX We investigated the variation in the drying time dynamic






