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 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 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 (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

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

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

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

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

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

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

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

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

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

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

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

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

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 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 (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