Zaporozhets Y. Intensification of the Process of Extraction of Hop under the Action of Low-Frequency Mechanical Vibrations in Beer Production.

The thesis is devoted to the investigation of the intensifying action of low-frequency mechanical vibrations of the process of extraction of desired components from hop raw materials during continuous vibratory extraction in the beer production, the expediency of using other physical effects of intensification of the process, the choice of new vibratory mixing and simultaneously vibratory transporting device and the development of a vibratory extractor of increased output on its base. The possibility and efficiency of the joint action of low-frequency mechanical vibrations and preliminary electric spark treatment on the intensification of the process of extraction of desired components from hop raw materials was proved and justified. The structure of a hydrodynamic flow generated by the vibratory transporting devices and the degree of deviation of the hydrodynamic flow from the ideal counterflow scheme of displacement were assessed. A new mathematical model for estimating the level of longitudinal mixing during continuous vibratory extraction was developed. A conceptual design of the vibratory extractor with a new transporting device, which can provide efficient separation of phases under conditions of counterflow vibratory extraction of desired components from hop raw materials together, the possibility of intensifying mass exchange and low longitudinal mixing, was elaborated. New hardware-manufacturing schemes of hop extracts for vibratory extraction with and without preliminary electric spark treatment of hop raw materials were justified and developed. The results of the work were introduced at the Berdichev Brewery Plant.