scholarly journals Bubble behavior of fructooligosaccharides syrup during the belt drying process

2018 ◽  
Author(s):  
Lijuan Zhao ◽  
Dandan Wang ◽  
Tengfei Du ◽  
Junhong Yang ◽  
Jianguo Li ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Natural Convection ◽  
High Speed ◽  
Reference Value ◽  
Drying Rate ◽  
Drying Process ◽  
Bubble Behavior ◽  
Image Acquisition System ◽  
And Diffusion ◽  
Transfer Stage

This paper is aiming to study experimentally the bubbling and drying characteristic of fructooligosaccharides syrup in the belt drying process. A series of bubble images were acquired by a high-speed image acquisition system during the drying process. By analyzing the characteristics of bubble and drying, the drying process of fructooligosaccharides was divided into three periods: boiling transfer, natural convection and conduction and diffusion period. The drying rate in different transfer stage was: boiling transfer > natural convection > heat conduction and diffusion. The results of the study are of reference value to belt drying. Keywords: fructooligosaccharides; belt drying; digital image processing; heat and mass transfer

Analysis of Mass Transfer during Loose Material’s Convective Drying

2011 ◽  
Vol 317-319 ◽  
pp. 2018-2021
Author(s):  
Xue Ping Wang ◽  
Wei Wei Cao ◽  
Yong Song ◽  
Zhen Wei Zhang
Keyword(s):  
Mass Transfer ◽  
Moisture Transfer ◽  
Convective Drying ◽  
Drying Rate ◽  
Drying Process ◽  
Moisture Migration ◽  
Phenomenological Equations ◽  
Heat And Moisture ◽  
The Mathematical Model ◽  
The Relationship

Abstract. The thesis focuses on how to get the mathematical model of mass transfer under some certain simplified conditions and how to gain the moisture content of materials under drying. In this process, authors utilized phenomenological equations of heat and moisture transfer and analyzed the relationship and cross effects between force and flow, which were about various kinds of heat and mass transfer. In addition, the authors also used computer simulation in drying process. The result of the study is that drying rate depends on the speed of the internal moisture migration. The conclusions of this thesis have great significance for selecting the dryer and in the actual production.

scholarly journals Periods of constant and falling-rate for infrared drying of carrot slices

2011 ◽  
Vol 15 (8) ◽  
pp. 845-852 ◽  
Author(s):  
Fernando M. Botelho ◽  
Paulo C. Corrêa ◽  
André. L. D. Goneli ◽  
Márcio A. Martins ◽  
Felipe E. A. Magalhães ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Arrhenius Equation ◽  
Effective Diffusion ◽  
Infrared Heating ◽  
Drying Rate ◽  
Drying Process ◽  
Constant Weight ◽  
Infrared Drying ◽  
Heating Source

The aim of this work was to study the infrared drying process of carrot slices and to determine coefficients related to the heat and mass transfer of the process. Fresh carrots were used, dried until constant weight in a dryer with infrared heating source. Different models were utilized to fit the experimental data of constant and falling drying rate periods. It was verified that the coefficients of heat and mass transfer, during the constant drying rate, significantly increased with temperature on rise. The Diffusion Approximation, Two Terms, Midili and Verna models satisfactory represented the falling period of drying rate of carrot slices. The effective diffusion coefficient increased with temperature and this relationship can be represented by the Arrhenius equation, obtaining activation energy to the drying process of 29.092 kJ mol-1.

The Design of Image Acquisition System Based on Contex-M3

2013 ◽  
Vol 278-280 ◽  
pp. 1148-1152
Author(s):  
Fan Zhang ◽  
Jian Dong Mao ◽  
Zhi Min Rao ◽  
Ya Ya Zhang
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Image Acquisition ◽  
Reference Value ◽  
Image Data ◽  
Image Sensors ◽  
Acquisition System ◽  
Similar System ◽  
Image Acquisition System ◽  
Sd Card

A CMOS image acquisition system based on Contex-M3 is developed. In design STM32F103X is selected as the main controller, OV7670 is used for image sensors. In order to capture high-speed digital image, the FIFO buffer chip AL422B and SD Card under the control of the DMA are employed to directly transfer data. Moreover the SD card and 2.8 inch TFT LCD are selected to storage and display image data, respectively. Because of small size, low power, simple structure and low cost, the image acquisition system can provide an important reference value for development of similar system.

CATFISH DRYING (Clarias Batraclus) USING ‘TEKO BERSAYAP’ SOLAR DRYER

2012 ◽  
Vol 2 (1) ◽  
pp. 14-20
Author(s):  
Yuwana Yuwana
Keyword(s):  
Relative Humidity ◽  
Moisture Content ◽  
Ambient Temperature ◽  
Drying Rate ◽  
Drying Process ◽  
Drying Time ◽  
Ambient Relative Humidity ◽  
Solar Dryer

Experiment on catfish drying employing ‘Teko Bersayap’ solar dryer was conducted. The result of the experiment indicated that the dryer was able to increase ambient temperature up to 44% and decrease ambient relative humidity up to 103%. Fish drying process followed equations : KAu = 74,94 e-0,03t for unsplitted fish and KAb = 79,25 e-0,09t for splitted fish, where KAu = moisture content of unsplitted fish (%), KAb = moisture content of splitted fish (%), t = drying time. Drying of unsplitted fish finished in 43.995 hours while drying of split fish completed in 15.29 hours. Splitting the fish increased 2,877 times drying rate.

scholarly journals Modeling and simulation of heat and mass transfer in an Ethiopian fresh injera drying process

Heliyon ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. e06201
Author(s):  
Alamrew B. Solomon ◽  
Solomon W. Fanta ◽  
Mulugeta A. Delele ◽  
Maarten Vanierschot
Keyword(s):  
Mass Transfer ◽  
Modeling And Simulation ◽  
Heat And Mass Transfer ◽  
Drying Process
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