## mathematical modeling of thin layer drying process of

### Thin layer mathematical modeling of convective vacuum and

Fitting of the experimental data to 13 thin layer drying models resulted in Sigmoid model as the most suitable model for all investigated drying techniques Sigmoid model was followed by Cubic and Midilli models with respect to R 2 RMSE and χ 2 Diffusion coefficients varied between 1 962 10 −9 and 1 372 10 −8 m 2 /s for convective

### The Influences of Drying Process on Crude Protein Content

A thin-layer drying mathematical model of crude protein content for naked oat cut herbage was established The optimal drying parameters were determined as hot air temperature of 88 6–94 2 ∘C air velocity of 0 28–0 32 m/s and drying time of 16 4–20 6 min

### [PDF] LTHV (LOW TEMPERATURE AND HIGH VELOCITY) DRYING

In this regard Logarithmic (Asymptotic) Midilli-Kucuk Demir et al Balbay-Sahin models were chosen as the best mathematical models for each LTHV drying temperature at 4 10 15 and 20 C Consequently the best single layer drying curve equations were chosen as the optimal models for LTHV drying of

### A mathematical model for predicting the drying rate of

A mathematical model for predicting the drying rate of cocoa bean (Theobroma cacao L ) in a hot air dryer using dimensional analysis Development of a mathematical model for predicting the drying rate of a thin layer cocoa bean in a convective hot air dryer using dimensional analysis based on the Buckingham's π theorem is presented

### Mathematical Modelling of Thin Layer Solar Drying of Fish

Mathematical Modelling of Thin Layer Solar Drying of Fish (Bagrusbayad) Abdel Moneim Osman A Babiker1 Omer E M Osman2 Mohammed M Bukhari3 Eman Abdu Abdalla4 Jamal Nourain Ibrahim2 and Waleed Aboshora1 1 Department of Food Processing Engineering Faculty of Engineering Al Imam Almahdi University Kosti Sudan

### Quantitative understanding of Refractance Window™ drying

However no mathematical model-based mechanistic understanding of this process is available to support the above hypotheses which is the objective of the present work A conjugate heat and mass transfer model is developed to simulate the drying of pumpkin slices and investigate in particular the effect of the optical properties of a commonly

### A new mathematical model for thin layer drying of fruits

The aim of this study was to fit a new mathematical model on the thin layer drying curves of fruits Thin layer drying studies at different temperatures (60 80 and 100C) were carried out on two varieties each of kiwifruit and apricot The new model was compared statistically with three other drying models (Henderson and Pabis Page and logarithmic) published in the literature

### Mj Int J Sci Tech 2008 1(Special Issue) 38

while hot-air drying process consisted of two drying periods i e heating up and falling rate periods To describe the effect of microwave power and drying air temperature on drying kinetics of red curry paste three different mathematical thin-layer equations i e Lewis Page and Henderson-Pabis models were used to fit the drying data

### Thin

Seven thin-layer mathematical models cited in the literature had been used for the study These models were applied for different trays placed in the dryer The result of the research and experimentation showed that the Page model fits best for drying in the steam-based dryer and open sun drying

### Mathematical Modeling of Solar Drying Systems

Abstract Mathematical modeling appears to be valuable utensils for the forecasting of drying kinetics of agro-commodities Numerous mathematical models like heat and mass balance models thin-layer models and equilibrium moisture content models have been used to illustrate the thin-layer and deep bed drying of agro-products

### Drying kinetics and mathematical modeling of hot air

Jun 21 2016Mathematical modeling for thin layer drying Thin layer drying models have been found wide application in describing most of the agricultural products due to their ease of use and lack of required data in complex theoretical models Thin layer drying models fall into three categories namely theoretical semi-theoretical and empirical (Ozdemir

### Mathematical Modelling of Solar Drying of Thin Layer Ginger

Keywords: Mathematical modelling drying kinetic solar drying thin layer ginger 1 Introduction In Malaysia the name such as ginger is no stranger to the subject and was compulsory course in the kitchen There is main ingredient in cooking while has high nutritional value The use of ginger is not

### Model of Mass and Heat Transfer during Vacuum Freeze

Theory analyzing of corneal freeze-drying mathematical model of The ﬁrst step during a freeze-drying process is prefreeze which could aﬀect the activity and the drying rate of cornea Drying process is to remove the moisture inside Continuity equations of dry-layer can be

### Mathematical modelling of thin layer hot air drying of

Thin layer carrot pomace drying characteristics were evaluated in a laboratory scale hot air forced convective dryer The drying experiments were carried out at 60 65 70 75 C and at an air velocity of 0 7 m/s Mathematical models were tested to fit drying data of carrot pomace The whole drying process of carrot pomace took place in a falling rate period except a very short accelerating

### Mj Int J Sci Tech 2008 1(Special Issue) 38

while hot-air drying process consisted of two drying periods i e heating up and falling rate periods To describe the effect of microwave power and drying air temperature on drying kinetics of red curry paste three different mathematical thin-layer equations i e Lewis Page and Henderson-Pabis models were used to fit the drying data

### Mathematical Modeling of Solar Drying Systems

Abstract Mathematical modeling appears to be valuable utensils for the forecasting of drying kinetics of agro-commodities Numerous mathematical models like heat and mass balance models thin-layer models and equilibrium moisture content models have been used to illustrate the thin-layer and deep bed drying of agro-products

### International ood Research Journal

Drying kinetics and moisture diffusivity study of ripe Jackfruit Abstract This study presents the mathematical model of thin layer drying behavior of ripe jackfruit (Artocarpus heterophyllus) The experiment was conducted at four different temperatures i e 50 60 70 and 80C using a tray dryer At varying temperature the dry basis moisture

### Thin

A mathematical modeling of thin-layer drying of jujubes in a convective dryer was established under controlled conditions of temperature and velocity The drying process took place both in the accelerating rate and falling rate period We observed that higher temperature reduced the drying time indicating higher drying rates of jujubes The experimental drying data of jujubes were used to fit

### Mathematical modelling and experimental analysis of

Abstract: This present study aimed at investigating the thin layer hot air drying characteristics of broccoli Fresh un-blanched and blanched samples were dried at different temperature of 50 C 60 C and 70 C Drying curves obtained from the experimental data were then fitted to the five semi theoretical and/or empirical thin layer drying models

### Mathematical Modelling of Brown Seaweed Drying Curves

the need for a through understanding of the drying process Mathematical modeling of thin layer drying is important for optimum management of operating parameters and prediction performance of drying process It is essential to set out accurate models to simulate the drying curves under different drying conditions

### Development of a Mathematical Model for Heat and Mass

Development of a Mathematical Model for Heat and Mass Transfer Inside a Granular Medium V J Petry 1 During the drying process it is important to control the air and the grains temperature the heat and mass changes wherein a deep bed is modelled as a thin layer of grains using a semi-empirical model

### Vibratory fluidized bed

Vibratory Fluidized Bed (VFB) is a type of fluidized bed where the mechanical vibration enhances the performance of fluidization process Since the first discovery of vibratory fluidized bed its vibration properties proves to be more efficient in dealing with fine particles which appears to be very difficult to achieve with normal fluidized bed

### MATHEMATICAL MODELLING OF THIN‐LAYER DRYING OF

The drying process was carried out at temperatures of 50 55 and 60C air velocity of 2 4 m/s and relative humidity between 10–25% Drying time decreased considerably with increased air temperature Drying process took place in the falling rate period Twelve mathematical models available in the literature were fitted to the experimental data

Xanthopoulos G Oikonomou N Lambrinos G Applicability of a single-layer drying model to predict the drying rate of whole figs Journal of Food Engineering 2007 81(3):553‒559 Liu X Qiu Z Wang L et al Mathematical modeling for thin layer vacuum belt drying of Panax notoginseng extract Energy Conversion and Management

### Mathematical and Kinetic Modelling for Convective Hot Air

Jul 01 2019The kinetic modelling of thin layer drying is performed with various agricultural products such as seeds grains fruits and some plant species with economic importance Sweet Potato ( Ipomoea batatas L ) is a widely consumed and its industrialization is on the increase The thin layer drying kinetics of sweet potato were experimentally investigated in a convective hot air dryer

### The drying efficiency of electrohydrodynamic (EHD) systems

The aim of this work is to select the most suitable mathematical model to describe the thin layer electrohydrodynamic (EHD) drying of cooked beef based on voltage and such geometrical characteristics as thickness and cross-sectional area of the material

### SIMULATION OF THE HEAT AND MOISTURE TRANSFER PROCESS

The modelling of such a problem is of significance in understanding and controlling the drying process In the present study a mathematical model for coupled heat and moisture transfer problem is presented The model consists of four partial differential equations for mass balance heat balance heat transfer and drying rate

### A mathematical model of direct sun and solar drying of

Conceptualization of drying involves the single par-ticle alone and the particles in mass and many of drying models have been developed for both cases When dry-ing a single particle (or thin layer-drying) the empiri-cally ﬁtted curves as well as the theoretical curves based on heat and mass transfer for rate of moisture loss take

### Thin

Seven thin-layer mathematical models cited in the literature had been used for the study These models were applied for different trays placed in the dryer The result of the research and experimentation showed that the Page model fits best for drying in the steam-based dryer and open sun drying

### Mathematical modelling of thin layer hot air drying of

Thin layer carrot pomace drying characteristics were evaluated in a laboratory scale hot air forced convective dryer The drying experiments were carried out at 60 65 70 75 C and at an air velocity of 0 7 m/s Mathematical models were tested to fit drying data of carrot pomace The whole drying process of carrot pomace took place in a falling rate period except a very short accelerating

### Thermal Science

The mathematical model consists of two non-linear differential equations and one equation with a transcendent character and it is based on the mathematical model developed for drying process in a form of a 1-D thin layer The appropriate boundary conditions were introduced