Kovalyov S. The improvements to the work process and the justification of the design of the multifunctional mill unit with hydrodynamic principle of action.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0413U002612

Applicant for

Specialization

  • 05.05.17 - Гідравлічні машини та гідропневмоагрегати

12-04-2013

Specialized Academic Board

К55.051.03

Essay

The thesis work is occupied by the solving of the scientific problems of justification of the work process and determination of the energy characteristics of the multifunctional mill unit depending on the design parameters of its hydraulic part, rotor speed, the flow rate and fluid parameters. Owing to numerical simulation, the flow patterns within the hydraulic part of the hydraulic mill have been obtained. The probability of the flow patterns has been confirmed by the comparison of the integral characteristics that were obtained by means of experiment and numerical simulation. Analysis of the results of the physical research of the work process of the hydraulic mill on fluid allowed to determine the effect of hydrodynamic and design parameters on the characteristics of the unit. The features of the application of the similarity theory for the model recalculation of the characteristics has been established as the result of analysis of the model of the work process. The results of the experiments with one- and two-phase fluid allowed to propose an approach for determining the energy balance. The specific part of each component of the energy balance has been determined. The methodology for calculating the elements of the hydraulic part of the multifunctional mill unit with hydrodynamic principle of action has been developed. According to this methodology production unit for a distilling plant has been manufactured.

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