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