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TEKA
Komisji Motoryzacji i Energetyki Rolnictwa XVI_2/2016.
Commission of Motorization and Power Industry in Agriculture
Strona redakcyjna - editorial page - plik PDF
List of the Reviewers - editorial page - plik PDF
Spis treści - plik PDF
Od autora- plik PDF
A. Galstyan, G. Galstyan, L. Timoshyna
Volodymyr Dahl East-Ukrainian national university, e-mail: gaalst@mail.ru
Investigation of oxidation process of 3-aminotoluene with ozone in presence of
manganese bromide catalyst
- pełny artykuł (full article) - plik PDF
Summary. The possibility of producing 3-
aminobenzyl alcohol and 3-aminobenzaldehyde by
oxidation of 3-aminotoluene with ozone in the solution of
acetic anhydrite in the presence of manganese (II) acetate,
potassium bromide and sulfuric acid has been shown.
The catalytic systems for regulating selectivity and
depth of substrate oxidation has been developed. The
catalytic system Mn(OAc)2 Ac20 H2SO4 promotes
the formation of alcohol (65.5%) and 3-
acetylaminobenzylidendiacetate (20.1%) with the system
Mn(OAc)2 KBr Ac2O H2SO4 increases oxidation
selectivity on the methyl group to 90.8% producing
mainly aldehyde (80.8%)
The optimum temperature of selective oxidation of 3
aminotoluene with the ozone air mixture (30°C)
which is much lower than that of oxidation by the known
methods (120°-240°C) and the optimum rations of the
reagents concentrations: for alcohol synthesis [ArCH3] :
[Mn(OAc)2] : [H2SO4] =1 : 0.2 : 2.5; for aldehyde
synthesis [ ArCH3]: [Mn(OAc)2] : [KBr] aldehyde
synthesis [ArCH3] : [Mn(OAc)2] : [KBr] : [H2SO4] =
1:0.2:2.5 have been determined.
Key words: oxidation, 3-acetylaminotoluene, ozone,
sulfuric acid, selectivity, potassium bromide.
Yu. Kozub, G. Kozub
DLuhansk Taras Shevchenko National University, e-mail: kosub@rambler.ru
Calculation of the longevity of elastomeric structural elements - pełny artykuł (full article) - plik PDF
Summary. A mathematical model of the process of
thermoelastic deformation and dissipative heating of
elastomeric structural elements are assumed . The
methods of prediction the longevity of structures based on
the use of entropy fracture criteria are proposed. For
solving of the link thermoelasticity problem of method of
successive approximations is used.
Key words. Elastomer, thermoelasticity, longevity, fracture criteria.
V. Lyfar
Volodymyr Dahl East Ukrainian National University, e-mail: atp01@ukr.net
The information model of technogenic risk managementy
- pełny artykuł (full article) - plik PDF
Summary. The article is devoted to the development
of technogenic risk management models and
formalization of the process of support in making decision
in the sphere of industrial safety. The structural,
informative and mathematical models, used to process
information in the technological risks management, as
well as a formal model of the process of support of
making decision in achieving an acceptable level of
technical risk are presented and analyzed.
Key words: technogenic risks, information
technology, control model, Seveso III, simulation,
multiparametric optimization, Pareto space.
E. Maznev, V. Malashchenko, A. Borys
Volodymyr Dahl East Ukrainian National Universyti, Severodoneck;
National University "Lviv Polytechnic", Lviv. e-mail:ea-maznev@yandex.ua
Research on Disc Cutting Unit for Cutting Energy Plants
- pełny artykuł (full article) - plik PDF
Summary. The article brightens scientific problem
concerning the new ball coupling, which can be used in
different branches of engineering. A comparative analysis
of the results of research known freewheel. The design
features a ball coupling on the basis of which it is easy to
create a torque limiter evenly tightening bolted
connections of various machines and mechanisms.
Prepositional necessary analytical fallow that describe the
basic values of the forces off the torque limiter, which
have become a benchmark for the development of a new
design, which received a patent of Ukraine for utility
models. Shows a schematic design of torque limiter,
which is based on the known developed ball coupling s
full description of its constituent parts and principle of
operation. Based design features selected design scheme,
which allowed for a mathematical model for the analysis
of the power unit. Analytically describes the amount of
force that acts on working balls at the beginning of the
release of their engagement with the groove of the driven
coupling half, i.e. an analytical expression effort off the
clutch. On the basis of the formulas A quantitative
analysis of the impact force of the spring by the amount
of torque limiter for different angles of inclination
grooves of the coupling halves. Made confirmation of the
classical position that the dependence of torque limiter the
wire diameter of the spring is the value is not linear. On
the basis of current research findings and made practical
recommendations for the implementation of the results of
research opportunities in industry engineering.
Key words: torque limiter, friction, a ball coupling.
V. Mogila, O. Potapenko
Volodymyr Dahl East Ukrainian National University, e-mail: vesna201009@rambler.ru
Analysis and Study of the Problems Arising
in Movable Joints of Freight Car Bogies
- pełny artykuł (full article) - plik PDF
Summary.The process of wheel - rail interaction is
largely determined by dynamic properties of the car,
improvement of which is possible by improving design of
the bogie and its basic elements.
The article analyses and discusses the problems that
have arisen in recent years in the course of operation of
bogie 18-100. Tribological and mechanical properties of a
friction wedge-type oscillation damper are studied.
Key words: railway track, freight car, three-piece
bogie, friction oscillation damper, dynamic coefficient,
operation
O. Porkuian, A. Timoshyn, L. Timoshyna
Volodymyr Dahl East-Ukrainian National University, e-mail: timxxvii@gmail.com
Some algorithms of computer algebra-pełny artykuł (full article) - plik PDF
Summary. The article describes one of the methods
for computing determinants without using fractions
proposed by Bareiss. This problem has a clear algorithmic
character in nature and refers to the field of computer
algebra. The implementation of this algorithm is proposed
in the known Maxima system of symbolic computations.
In addition, this method makes it possible to get enough
convenient formula for the calculation of the matrix of
unitriangular transformation of a quadratic form to a
canonical one.
Key words: computer algebra, Maxima system,
determinant, Bareiss algorithm, a quadratic form,
unitriangular transformation
A. Tselischev, M. Loriya, A. Ijagbuji
Volodymyr Dahl East Ukrainian National University,
e-mail addresses: atp00@ukr.net, atp01@ukr.net, dejiijagbuji@yahoo.com
Cavitation reactor installation for processing hydrocarbon
- pełny artykuł (full article) - plik PDF
Summary. This paper proposes a new, simple and an
efficient method for methanol formation under the
cavitation influence of hydrogen-peroxide using a
dynamic cavitation reactor. The process involves the
reaction of the generated hydroxyl radical with propanebutane
gas (C3C4) to form propyl and butyl radicals
which decompose into methyl radicals and alkenes,
followed by the subsequent yield of methanol (via the
interaction of methyl-radical with hydroxyl radical).
Technological process parameters employed in this
investigation are quite achievable for industrial
production.
Key words: Propane-butane gas, hydroxyl radical,
dynamic cavitation, hydrogen peroxide solution
P. Uvarov, M. Shparber
Volodymyr Dahl East Ukrainian National University; e-mail: uvarov_p@ukr.net
The peculiarities of the organizational and technological designing for the construction
liquidation cycle
- pełny artykuł (full article) - plik PDF
Summary. This article presents the peculiarities and
methodical principles for designing the technologies and
forms of organization of the construction liquidation cycle
for typical unified series of residential buildings. The
systematic approach for developing the necessary settings
and indicators of the structure of a complex technological
process for disassembling, destructing and demolishing of
structural elements and buildings in general is given. The
multigraph is created for the closed walk model of
correlation of the parameters of the organizational and
technological solutions of the construction liquidation
cycle.
Key words: construction liquidation cycle, systematic
approach, modularity principle, process models for
disassembling, destruction and demolition of
constructions, the classification of destructive effects, the
creation of a multigraph model
O .Boltianskyi1, B. Boltianskyi1, N. Boltyanska1, S. Sosnowski
Tavria State Agrotechnological University, ?-mail: natali.28@inbox.ru
Wyższa Szkoła Inżynieryjno Ekonomiczna z siedzibš w Rzeszowie
Analysis of major errors in the design of pumping stations
and manure storage on pig farms
- pełny artykuł (full article) - plik PDF
Summary. We consider the manure removal system,
which is used in most pig farms being built and
reconstructed at present in Ukraine, and it has been
discovered that there are major mistakes during the baths
construction in the correct geometry and depth, and
therefore discusses their rules of operation. If the baths
geometry is wrongly executed, for instance, if the slope is
made to slant toward the bottom of the tub filler drain
pipe, which in itself is unacceptable, or not properly
executed in the form of a special pit steps towards the
neck drain, and etc., then a number of problems is
inherent of its exploitation. The basic requirements for
laying fused-pipe is compliance with its slope. The
considered equipment must be equipped with pumping
stations to pump manure. The pumps for pumping
manure: submersible sewage pumps and dry-installed in
the mine and long sewage pumps with electric or PTO
shaft of a tractor were analyzed. Attention was paid to the
designing of modern equipment for the distribution of
manure waste into fractions. The classification of manure
storage and the basic requirements for their placement and
arrangement was carried out, and recommendations are
made for the designing of pumping stations, to select
pumps for the pumping stations and the design during the
modern construction and reconstruction of old pig farms.
Key words: Pig manure, manure disposal, pumping
stations, manure storage.
Ya. Sokolova, Yu. Rasskazova, O. Krol, V. Sokolov
Volodymyr Dahl East-Ukrainian National University, e-mail krolos@yandex.ru
Modeling of fluid flow in microgap considering
the boundary change of dynamic viscosity
- pełny artykuł (full article) - plik PDF
Summary. The flow of a viscous incompressible
fluid in small gaps hydraulic devices and devices based
on the hop boundary changes in viscosity. For the
distribution model adopted dynamic viscosity was
integrate the equations of fluid motion, whereby
expressions are obtained for the velocity of the liquid
height of the gap. The expressions for calculation of the
fall capacity flow section are determined. Examples of the
calculation of distributions velocity and falling bandwidth
to a narrow gapare given.The estimation of the limits of
applicability of classical approach to the calculation of
viscous flow in micro gap is executed.
Key words: dynamic viscosity, fluid pressure, flow
velocity distribution
K. Alahmad Almou
Volodymyr Dahl East Ukrainian National University, e-mail: olga.porkuian@gmail.com
Developing computer-integrated control system for reactor of nanocatalytic
petroleum products refining
-pełny artykuł (full article) - plik PDF
Summary. The article deals with the automated
control of the catalytic cracking process of vacuum gas
oil. A functional scheme of automation is proposed, and a
computer-integrated control system for the reactor of
nanocatalytic petroleum products refining is developed.
Key words: catalytic cracking, aerosol nanocatalysis,
reactor, mnemonic scheme, control.
G. Tatarchenko, N. Biloshitska, O. Vodolazskyy
Volodymyr Dahl East Ukrainian National University,
e-mail: tatarchenkogalina@gmail.com, beloshitska@ukr.net, alexey.vodolazskyy@gmail.com
Features of influence of some factors
corrosion of carbon steel in circulating water
- pełny artykuł (full article) - plik PDF
Summary. The influence of external factors,
temperature and flow velocity on the corrosion processes
St3 in model solutions petrochemical plant recycled water
with high salinity and hardness without open systems and
in the presence of the inhibiting composition. It was found
that an increase in temperature leads to a linear increase in
corrosion rates, and the change in circulating water flow
rate leads to the extreme nature of corrosion processes;
optimal conditions are determined. Recommended use of
cathodic inhibitors or mixed type inhibitor, in particular,
the composition "SVOD-BI" (means for controlling the
biological corrosion), which can significantly reduce the
effect of temperature and flow on the corrosion rate St3,
promotes the growth and strengthening of the oxide film
in the presence of oxygen, increases the degree of
protection of steel and preventing the formation of at its
surface carbonate-calcium deposits.
Key words: corrosion of water circulation systems,
carbon steel, temperature, flow rate, cathodic inhibitors,
and calcium carbonate deposits
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