The amount of information that control means receive when measuring process parameters.
Published in Chapter:
Control and Optimized Management of Grain Drying in Forced-Aerated Bins
Alexey Nicolaevich Vasiliev (Federal Scientific Agroengineering Center VIM, Russia), Alexey Alexeevich Vasiliev (Federal Scientific Agroengineering Center VIM, Russia), Dmitry Budnikov (Federal Scientific Agroengineering Center VIM, Russia), Dmitry Tikhomirov (Federal Scientific Agroengineering Center VIM, Russia), and Asan Bekeshovich Ospanov (Kazakh SRI MEA, Kazakhstan)
Copyright: © 2019
|Pages: 31
DOI: 10.4018/978-1-5225-7573-3.ch008
Abstract
In the chapter, both informational and system-based approaches have been applied to the analysis of grain drying process as an interaction of two systems, namely, “drying agent” and “grain layer.” It made it possible to evaluate the information content of the process. Analytic expression has been obtained for grain layer informational entropy variations which enabled to make the conclusion that an adequate physical description of grain drying process has to include ambient air parameters control, as well as that of drying agent's parameters in its exit out of a grain layer, as well as parameters of both drying agent and grain in one point of grain layer. A mathematical model of heat-and-moisture exchange in dense grain layer has to be applied. As a result of modeling, it has been proved that the sensors of both drying agent and grain parameters have to be located at a distance of 10 to 11 cm from the central cylinder of the forced-aerated drying bin.