There is always an abrupt variable schedule of cooling
consumption in processing enterprises with seasonal
supply of raw materials. This causes peak heat load on
the refrigeration unit. The introduction of cold
accumulators (CA) in refrigeration units is one of the
modern ways of reducing the cost of refrigeration. The
use of cold accumulators allows you to smooth out
uneven thermal load on refrigeration, reduce the
cooling capacity of the installed equipment and
technical equipment. The night season experiences
minimum heat leakage and power consumption of
frozen ice water (coolant or refrigerant) but the
refrigeration capacity is used during the daytime at
peak heat load of cold consumption at peak electricity
consumption. The major cost of electricity to generate
refrigeration to compensate for heat loss coincides
with the period of high electricity tariffs as shown
from the analysis of cold consumption. The
development of refrigeration systems with cold
accumulation in “night” period of low electricity tariffs
is an important issue based on the forgoing
In the article we have performed a comparative analysis
of a traditional system of air supply to the bioreactor
during the composting process and the developed system
with lateral air supply. We have proven to reduce
temperature variation of the substrate as a result of the
use of the ventilation system by 35%. During the
simulation, equal to 1.0 hour, a ventilation system with
side air flow provides a reduction of the accumulated
degree of heterogeneity of status parameters of the
substrate by 58%. Use of the ventilation system with side
air flow reduces the duration of technological cycle of
composting 7 %. This article was prepared in the
framework of the scientific project 16-48-230441 a(R)
"Mathematical modeling of the processes occurring in
the automated installation for year-round production of
organic fertilizers in the conditions of the Krasnodar
region", financed by RFBR and administration of the
Krasnodar region
The article has indicated the problem of the growth of
document organization on the example of higher
educational institution FGBOU "Kuban state
technological University". Based on years of practice,
the author conducted a detailed analysis of activity of
service of documentary maintenance of management
of the University and detailed analysis of the structure
of the document taking into account the specifics of
the direction of the organization. The article sets main
tasks of service of the DOE, the actual problems of
transition to paperless documentation of the
organization's resources. We highlight problems of
management and use of documents, due to the steady
growth of documentary information. The major
factors, influencing the growth of volumes of
documents were given. Despite the rapid development
of electronic document management in practice,
electronic document duplicates the traditional
paperwork. However, today the approach to document
management is based on electronic technologies. The
study of the author offers solutions to the general
problem of reducing the volume of document
workflow in the modern world
Numerous studies confirming the effectiveness of the
use of the ozone-air mixture in various fields of
agricultural production lead to an increase in demand
for devices that generate ozone. With the increase in
demand, the requirements for these devices also
increase. Requirements from customers can be
combined in the following series: mobility, ease of
operation, ability to smoothly control performance.
The solution of these tasks is an important scientific
and technical task. This article describes possible
options for power supplies for ozone generators, and
offers a power supply circuit with the ability to adjust
the frequency, the duty cycle and the amplitude of the
signal arriving at the discharge gap of the ozonizer.
Using this scheme will reduce the mass-size
indicators of the ozonizer, thereby increasing its
mobility, in addition, it will be possible to accurately
regulate its performance and improve efficiency. If
necessary, with the help of the proposed scheme, it is
possible to introduce the ozone generator into the
electric resonance mode, which will allow obtaining
the maximum productivity of the ozonator. Thus, the
ozonizer, equipped with the proposed power scheme,
can be used in various technological processes of the
same enterprise
The article describes the modeling process of the
heating system operation of a livestock-breeding
complex. It presents graphs reflecting the influence of
technological parameters of heat supply system of
cattle-breeding complex with a catalytic combustion
device on the parameters of energy efficiency of the
system and the parameters characterizing the stability
of the temperature conditions in the livestock sector
We have conducted experimental and analytical
studies showing the relationship of constant and pulse
forms of current sedimentation on the physicochemical
properties of chrome coatings: adhesion
strength to the substrate, residual stress, fatigue life,
elongation and contraction, yield stress, and
endurance. We have shown the methods and modes
of use of dilute electrolyte of chromium plating with
organic additives, is capable of applying a chrome
coating on parts of agricultural machines, surpassing
the properties of the coatings obtained from
electrolytes that are recommended by the GOST
standards. The proposed hardening chemical-thermal
coating technology for chromium in the manufacture
and repairing of worn parts of agricultural machinery
(rods of hydraulic cylinders, journals of crankshafts,
spools, parts, gearboxes and transmissions, etc.),
identifies the consumption of additives modifiers,
proposed methods for their determination, confirmed
by patents for inventions. The proposed technology
of worn-out surfaces of parts of agricultural
machinery of layer-block structure of the chromium
coatings with improved properties. The influence of
modifying organic additives on the structure of the
intermediate surface film of colloidal trivalent
chromium compounds, which in combination with
the parameters of the bipolar pulse current allows you
to specifically adjust the physical and mechanical
properties of crystals of the deposited chromium
layer with a grid of cracks, and without them for the
required operating conditions of dry friction or oil environments, which increases the durability of the
parts during use. The increase in yield, at the current
6-8 %, to 4 times reduces the degree of
hydrogenation of the restored details, up to 3 times
reduces internal friction, roughness, improves the
limits of strength, toughness, elongation and
contraction, increases corrosion resistance up to 3
times, obtained chromium coatings
The article presents the analyzes results of the
deconstructive approach to the process of garment
designing, which consists in structural defects
modeling; it develops the systematization of projected
design effects based on the study of modeling defects,
analysis of their appearance and methods of
elimination. The purpose of the research is the further
development of designing methodology of structural
defects in sewing products
The article considers problems of constructing a
temporal processor in the planning and management of
a multitude of objects using various temporal theories
of representing temporal factors of perception of the
external environment based on the phenomenon of
human memory
For different industries, there was a need of creation new equipment and mechanisms with enhanced characteristics. Special requirements are imposed to energetic and mass-dimensional indices of systems of electric drives as one of the main components of such devices. Mass-dimensional and energetic indices due to constructional features and the used management system will allow improving the use of special or controlled asynchronous cascade systems of an electric actuator of axial construction. One of the main difficulties is simulation and design of special systems of the electric drive. In the article, we offer a new approach to determination of magnetic model parameters of the stator of a component of a controlled asynchronous cascade electric actuator of axial construction
Condition monitoring is a necessary element of the
transport and special machinery in agriculture. The
task of the control operations other than the
determination of the technical state of the object is to
determine the required amount of work, as well as
rational amount of collateral the repair of which could
be combined with the next maintenance. Based on the
results of processing of the information, we may
generate requests for service. In the conditions of
uncertainty of receipt of requests for servicing of
individual machines, estimated volumes and timing,
we have am appropriate development of applied
technique of justification of the number of diagnostic
posts for interactive control of a technical condition
of vehicles and special machinery in agriculture. The
presented methodology is based on probabilistic
methods, and allows the quick optimization of the
number of existing posts interactive diagnostics in the
enterprise, if necessary, translating the existing posts
in "standby" mode, or Vice versa, returning from a
reserve in "work" mode. The production and
technical base of the enterprise service based on the specific assumptions are considered as a system of
mass service (SMO), and the function of such a SMO
– as the process of mass service. The process of
queuing as applied to interactive diagnosis are
"Markov" processes "death and reproduction" with a
finite or countable number of States and continuous
time. To describe the states of the system we use the
system of the Kolmogorov equations for steady state
of "Markov" process. On their basis, we have
determined average queue length, time of stay orders
in the queue, number of busy channels and the
bandwidth of the CFR. Using the intensity of the
requests and the service time of a single application
for specific equipment, the article establishes the
efficiency of online diagnosis posts. The result of the
proposed applied methodology enables timely
decision-making about the need for reconstruction or
technical re-equipment of the company