Modeling Heat and Mass Transfer Within an Eighth-scale Grain Drying System

2021 ◽  
Author(s):  
M. A. Lewis ◽  
S. Trabelsi
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Grain Drying ◽  
Drying System

Risk Analysis on Grain Quality in the Drying Process

2013 ◽  
Vol 397-400 ◽  
pp. 1078-1082
Author(s):  
Xin Yin Wu ◽  
Yao Fu ◽  
Yan Xu
Keyword(s):  
Mass Transfer ◽  
Risk Analysis ◽  
Heat And Mass Transfer ◽  
Process Monitoring ◽  
Grain Quality ◽  
Production Loss ◽  
Drying Process ◽  
Agricultural Industry ◽  
Grain Drying ◽  
Quality Process

Drying is one of the important chain of operations in agricultural industry, having important implications for maintaining edible quality and reducing the production loss of grain. International and domestic scholars have done a great deal of research about heat and mass transfer, change of grain quality, process monitoring and equipment during the process of grain drying, but none about the risk analysis of grain quality during the process of drying have been published yet. Therefore, based on the model of change of grain quality that is previously built, the paper intends put forward some suggestions on the production and application of grain drying equipment, adopting the AFSOM method in the procedure of risk analysis of grain drying quality.

Mathematical modelling of heat and mass transfer in agricultural grain drying

1983 ◽  
Vol 385 (1788) ◽  
pp. 169-187 ◽  
Keyword(s):  
Mass Transfer ◽  
Mathematical Modelling ◽  
Heat And Mass Transfer ◽  
Fixed Bed ◽  
Engineering Research ◽  
Concurrent Flow ◽  
Agricultural Engineering ◽  
Transfer Processes ◽  
Mass Transfer Processes ◽  
Grain Drying

Mathematical modelling and computer simulation of grain drying are now widely used in agricultural engineering research. Several models have been proposed to describe the heat and mass transfer processes involved in the drying of agricultural products. Most of these models, however, have been derived under assumptions that are not explicitly stated and that restrict their applications from the outset. Furthermore, it is not always clear what differences, if any, exist between various models. The purpose of this paper is to provide a general framework from which mathematical models for any type of drier may be derived. We illustrate the use of this framework by deducing equations for the four basic types of convective grain drier, namely fixed bed, crossflow, concurrent flow and counterflow. Finally we discuss some of the differences between the models thus obtained and those of other workers.

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