| Popis: |
Among the classical technologies, which apply elevated temperatures for preserving of grain and cereal products, there are two the most effective ones, currently used all over the world. The indicators are storage of cooled fresh raw materials in adjustable or modified gas environment and a long-term storage in a frozen state. The study dealt the first technology which employed active ventilation by the flow of refrigerant. Qualitative parameters for optimization of the investigated process included the mass fraction of gluten, moisture in raw materials, volume of air supplied, and the product processing temperature. On the base of a rootable, central-composite planning of a multifactorial experiment, a mathematical model for the data distribution was obtained. The obtained mathematical models, which are presented in the form of a multiple regression of the second order, allowed to describe the process of grain products storage adequately. As a result, we determined the optimal technological parameters for the equipment operation while studying the humidity of the processed materials, volumetric flow of air as well. |
