2019-2-22the thin-layer drying characteristics of mango slices (b) modeling of the thin-layer drying of mango slices by testing three drying models and (c) to estimate the effective diffusivity coefficient and energy of activation for mango fruit Materials and Methods Raw 2013-9-1experimental study represented by drying curves was performed for temperatures of 40 C 45 C 50 C 60 C and 70 C The model of Lahsasni et (2002) with six parameters has a better correlation of the experimental points for the determination of the searched diffusion coefficient

Determination of Some Quality and Safety Parameters for

2019-4-28Determination of Some Quality and Safety Parameters for Black Raisin Juice Yakup Aslan (Corresponding author) Drying is one of the oldest methods used to preserve fruits by reducing moisture contents and reaction The third one is indirect solar dryer which is the new and more effective technique of product International Journal of

The choice of the drying process plays a key role in reducing the costs of electricity consumption in the food industry Thus this study aimed to evaluate continuous and intermittent drying of rough rice using empirical and diffusion models to describe the drying kinetics considering only effective time of operation to compare and evaluate these processes

Although NCs around 200 nm have been successfully prepared by spray drying (12 18 19) there is a knowledge gap on the systematic and statistical analysis of the effect of process parameters specifically during spray drying of oily core NCs Thus this study was designed to bridge this gap

Rehydration time and colour are used as parameters for the dried apple quality The effective diffusion coefficients are obtained within the range of 0 486x10-9 -5 63x10-9 m2/s Regarding with drying time rehydration time and colour data the best results are obtained at 2 5 m/s velocity 20 5% relative humidity and a temperature range of 53 5

Determination of the drying rate and effective diffusivity coefficients during convective drying of two-phase olive mill waste at rotary dryers drying conditions for their application Author: Gmez-de la Cruz Francisco J Palomar-Carnicero Jos M Hernndez-Escobedo Quetzalcoatl Cruz

Study on Effective moisture diffusivity activation energy

2011-3-18Study on Effective moisture diffusivity activation energy and mathematical modeling of thin layer drying kinetics of bell pepper Amin Taheri-Garavand* Shahin Rafiee Alireza Keyhani Department of Agricultural Machinery Engineering University of Tehran Karaj Iran *Corresponding author: amin taheri49gmail Abstract

Freeze-drying is an extreme form of vacuum drying in which the water or other solvent is frozen and drying takes place by subliming the solid phase Freeze-drying is extensively used in two situations: (1) when high rates of decomposition occur during normal drying and (2) with substances that can be dried at higher temperatures and that are

2020-4-11However few drying studies have been carried out for biomass powder and the drying parameters of agricultural residues such as peanut shell are unknown In addition the isothermal condition has a significant influence on the accurate determination of the effective moisture diffusivity

2015-9-7of various parameters on solar drying process in Aydin region in Turkey Ersel Yilmaz 1 1 Hereby paper constitutes the determination of the conditions of solar drying of communal sewage The researches were conducted in order to assess the possibilities for effective drying of sewage sludge providing the lowest investment and

Results showed that application of ultrasound‐assisted osmotic dehydration pretreatment can lead to a significant increase in effective moisture diffusivity (from 5 84 10 −9 to 7 36 10 −9 m 2 /s) resulting in a 20% decrease in drying time and thus involving a higher energy saving and

2015-8-4moisture determination to be insensitive over the range 12–20% moisture content and therefore unsuitable for determining the end of drying (i e when coffee has a maximum of 12% moisture) or for verifying that coffee in the marketing chain is at a safe moisture content Page 1 of 6 'Good Hygiene Practices along the coffee chain'

In the present investigation tofu was dried in freeze dryer at -40C temperature Drying characteristics of tofu viz drying rates moisture diffusivity were evaluated and the drying data of tofu was used to calculate the effective diffusion coefficients by the Fick's law equation of diffusion The moisture

Although NCs around 200 nm have been successfully prepared by spray drying (12 18 19) there is a knowledge gap on the systematic and statistical analysis of the effect of process parameters specifically during spray drying of oily core NCs Thus this study was designed to bridge this gap

Rapid Determination of Phenolic Compounds in Water

2019-11-18Rapid Determination of Phenolic Compounds in Water Samples: Development of a Paper‐based Nanobiosensor Modified with Functionalized Silica Nanoparticles and Potato Tissue Electroanalysis ( IF 2 691) Pub Date : 2019-07-25 DOI: 10 1002/elan 201800780

2017-5-23ENGINEERING FOR RURAL DEVELOPMENT Jelgava 24 -26 05 2017 1364 WOOD DRYING IN HIGH AIR TEMPERATURE Aivars Aboltins 1 Jan Papez 2 Pavel Kic 2 1Latvia University of Agriculture 2 Czech University of Life Sciences Prague aivars aboltinsllu lv kictf czu cz janpapeztiscali cz

In the present work the effects of some parametric values on convective heat transfer coefficients and the thin layer drying process of ginger slices were investigated Drying was done in the laboratory by using cyclone type convective dryer The drying air temperature was varied as 40 50 60 and 70 C and the air velocity is 0 8 1 5 and 3 m/s

2012-9-6Methods of Determination for Effective Diffusion Coefficient During Convective Drying of Clay Products 297 MR = 2 2 22 2 0 81 (21) (2 1) 4 eff n n Dt nl (1) In equation (1) X0 X and Xeq represent respectively the initial current and equilibrium moisture content kg moisture/kg of dry material Deff is the effective diffusion coefficient

Freeze-drying is an extreme form of vacuum drying in which the water or other solvent is frozen and drying takes place by subliming the solid phase Freeze-drying is extensively used in two situations: (1) when high rates of decomposition occur during normal drying and (2) with substances that can be dried at higher temperatures and that are

2018-5-31The description of the drying process was reduced to the establishment of a series of theoretical and empirical drying models The complex processes of simultaneous moisture and heat transfer which are often nonstationary and the distinct nature and properties of the material to be dried further complicate the description of the drying process

1 1 These test methods cover the laboratory determination of the water (moisture) content by mass of soil rock and similar materials where the reduction in mass by drying is due to loss of water except as noted in 1 4 1 5 and 1 8 For simplicity the word "material" shall refer to soil rock or aggregate whichever is most applicable

The principal aim of this study was to evaluate the water vapour mass transfer resistance of the dried layer and the vial heat transfer coefficient values of a pharmaceutical product during the primary drying period First overall vial heat transfer coefficient values Kv were determined by a gravimetric method based on pure ice sublimation experiments

Thin-Layer Modeling and Determination of Effective Moisture Diffusivity and Activation Energy for Drying of Red Mud from Filter Presses Panagiotis M Angelopoulos 0 1 Efthymios Balomenos 0 1 Maria Taxiarchou 0 1 0 Department of Mining and Metallurgical Engineering National Technical University of Athens Athens Greece 1 Panagiotis M Angelopoulos Red mud is generated during alumina

2017-4-10ABSTRACTDrying of low rank coal is a very significant topic due to its high economic value One of the most important parameter in the designing of a dryer is the exiting moisture content of the material at the specified conditions and time Aim of this study was to utilize the design of experiment methodology to determine the most effective parameters on the moisture content of the dried coal

Two main approaches have been used to model the drying process: The first approach considers the partially saturated porous medium as a continuum and partial differential equations are used to describe the mass momentum and energy balances of the fluid phases The continuum-scale models (CM) obtained by this approach involve constitutive laws which require effective material properties such

2014-6-19This article compares diffusion models used to describe seedless grape drying at low temperature The models were analyzed assuming the following characteristics of the drying process: boundary conditions of the first and the third kind constant and variable volume V constant and variable effective mass diffusivity D constant convective mass transfer coefficient h

2017-4-10ABSTRACTDrying of low rank coal is a very significant topic due to its high economic value One of the most important parameter in the designing of a dryer is the exiting moisture content of the material at the specified conditions and time Aim of this study was to utilize the design of experiment methodology to determine the most effective parameters on the moisture content of the dried coal