Name
Gulyaev Pavel Vladimirovich
Scholastic degree
•
Academic rank
associated professor
Honorary rank
—
Organization, job position
Azov-Blacksea State Agroengineering Academy
Web site url
—
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Articles count: 4
This article offers adaptive control algorithm for fre-quency converter. It can make decrease expenditure of energy and increase coefficient of efficiency of pump of water supply systems
The article presents an overview of the run-in and testing
of internal combustion engines, the analysis of
break-brake- stands. We gave recommendations on
expediency of the application of asynchronous motors
with phase rotor winding on modern stands; we also
considered its advantages over asynchronous motor
with a short-circuited winding. As an alternative to the
modern techniques, we have proposed a scheme of
adjustable ballast circuit rotor using PWM modulation
current. The process of adjustable ballast resistance
and implementation of major break-regimes using the
proposed device was also considered in this study
The article is devoted to the development of a compressor
type ozonator. It describes the design of a
high-productivity compressor ozone generator, which
can be used for industrial decontamination of mixed
feeds, water, milk, and in the system of presowing
treatment of seeds. This construction allows generating
ozone with high concentration to 5 g/m3 at high feed
air or oxygen from the compressor station (up to 2000
l/min). The article describes the design of the basic
elements of tubular ozone generator, examines the
factors influencing the productivity of the ozonator.
The proposed mathematical model allows calculating
the productivity of the ozonator when considering multiple
influencing factors. These factors take into account:
the parameters of supply voltage, such as the
magnitude and frequency of the supply voltage; the
configuration and geometrical parameters of electrodes
such as, the area of the electrodes, the configuration of
the surface of the electrodes and distance between
electrodes; parameters dielectric barrier; and the transported
gas parameters such as volume, temperature,
pressure and composition. Special attention is paid to
the design of the electrodes made of woven wire mesh
with mesh sizes from 1.5×1.5 to 2.0×2.0 mm. It is noted,
that such electrodes allow obtaining the maximum
productivity of an ozonator, and they do not lead to
overheating of the dielectric barrier, and do not output
down the generator. In the same way, the article presents
the results of the mathematical modeling
of ozone generator productivity while changing
various factors
In the article we have considered a disinfection sys-tem for bulk materials (combined feeds) of highly concentrated ozone-air mixture. The results of an experimental determination of the concentration from exposure have been given