THEORETICAL BASIS FOR INCREASING VENTILATION EFFICIENCY
IN TECHNOLOGICAL PROCESSES AT INDUSTRIAL ENTERPRISES
V. N. Makarov
and S. Ya. Davydov
Translated from Novye Ogneupory, No. 2, pp. 59–63, February, 2015.
Original article submitted August 19, 2014.
Patented technological designs that implement vortex control of air flow in the blade passages of the impellers
of radial ventilators with adaptive vortex generators in order to increase ventilation efficiency at industrial en
terprises are investigated on the basis of results of development studies. A technique for the design of radial
ventilators with adaptive vortex generators is proposed on the basis of the method of conformal transforma
tions with the use of the theory of adjoint vortices, the aerodynamics of bodies with air flow, and the theory of
a function of a complex variable.
Keywords: ventilator, functional and economic efficiency, adaptive vortex generator, circular array of
It is impossible to maintain the competitiveness of indus-
trial enterprises in the global economic space without accel-
erating the rate of reconstruction of existing production
plants and creating new plants, taking into account the lead-
ing achievements of science and the introduction of modern
The power requirements of ventilation in the construc
tion industry reach 10 – 25%, depending on the technologi
cal and production structure . Each year nonproductive
costs for electricity expended by ventilators on technological
and auxiliary ventilation are commensurable with their cost.
Major problems have arisen in recent years caused by the
inadequate efficiency of the process of maintaining control
of the parameters of the technological parameters of the pro
duction of cement and refractory materials determined by the
The technical parameters of ventilators do not fully cor
respond to modern requirements imposed on ventilation sys
tems in technological processes as well as in production floor
areas. The increase in the load on production equipment and
the acceleration of production processes require the use of
ventilators that possess high aerodynamic load capacity and
The development of radial-vortex aerodynamic schemes
based on circular arrays of piecewise-smooth profiles with
adaptive vortex generators that deliberately act on the effec-
tive critical points of the array in order to create high-load
adaptive ventilators have served as the theoretical basis of a
patented method of increasing ventilation efficiency .
In terms of function, industrial ventilation is divided into
technological ventilation intended for movement of air and
gases in production equipment, in air purification systems,
and for suction of waste gases, and sanitary engineering for
ventilation and heating of industrial buildings .
A high level of dust content leads to a substantial oscilla
tion of the penetrability of ventilation systems over time,
which varies their aerodynamic parameters and, as a conse
quence, results in an imbalance between the actual fields of
the ventilation regimes and the fields required for maintain
ing public health conditions as regards sanitary ventilation.
The particular feature of technological ventilation is due
to the broad range of required fields of ventilation regimes
and the dynamic behavior of the variation of these regimes in
the technological process, and is determined not only by the
specified parameters of the technological process, but also by
the broad scatter of the characteristics of the raw material,
which substantially affects the parameters of the technologi
cal process, which assures a required quality of the manufac
Refractories and Industrial Ceramics Vol. 56, No. 1, May, 2015
1083-4877/15/05601-0103 © 2015 Springer Science+Business Media New York
FGBOU BPO Ural State Mining University, Ekaterinburg, Russia.