DOI: 10.7256/2453-8884.2017.4.25196

Abstract: The authors consider the processes occurring in heat engines, including internal combustion engines, in terms of their self-organization during the regenerative (generalized) Carnot cycle. The article shows that the heat engines that implement the Stirling cycle as well as other ones are a particular instance of the generalized Carnot cycle, but due to unitarity of the processes they cannot even approximate its coefficient of efficiency. The fundamental fact is that the fuel in these engines must be burned using oxygen, not air. The work proposes a synergetic approach to implementation of the generalized Carnot cycle by creating a model of the differential screw-rotor machine with separate thermal sections. The scientific novelty of the proposed methodology is that the resulting process in a multi-process machine is the sum of a set of different processes organized simultaneously in a set of different operating chambers in relation to a set of different portions of the working medium. The connection of the proposed machine with a thermomagnetic air separator will ensure the complete elimination of toxic emissions.

DOI: 10.7256/2453-8884.2019.1.29920

Abstract: The object of the study is a simulation model of the drilling machine. The subject of the study is a mathematical model of the engine load on the shaft. In this paper, monitoring refers to the assessment of the health of the machine equipment. It is envisaged that the monitoring will be carried out using the simplest control function, registering the current on the motor shaft with the help of the developed software (SOFTWARE) with the use of remote Supervisory control based on the SCADA system and the developed demonstration stand. This approach provides the possibility of early detection of breakdowns and providing information about the health of the monitored object. Theoretical research is based on the basic provisions of the theory of computational mathematics, the theory of automatic control, industrial programming. Empirical research includes methods of mathematical modeling using special computer software. The scientific novelty of the work lies in the development of an experimental monitoring stand of machine equipment, which allows to assess the state of the machine in real time and make decisions based on the information received by the SCADA system (MasterSCADA).

DOI: 10.7256/2453-8884.2017.3.21960

Abstract: Proper functioning of a turbogenerator set depends on continuous functioning of the system of regulation and protection of valves of a steam turbine. Proper functioning of a turbogenerator set is important in the case of accident threat caused by the increase of turbine rotation speed over a particular value within the operational range with insensitivity maximum 0,5% of an average operational rotation frequency. The protection of a steam turbogenerator set is guaranteed by cut-out, control and back-flow valves. By a signal of a sensor element of protection, a turbogenerator can be stopped by closing cut-out valves of a high-pressure and an intermediate pressure cylinders or their control valves and a grid valve, or simultaneous closing of the above mentioned cut-out and control units. Such a system operates on the basis of an automated system used for support of the key regulated parameters of a turbogenerator in electric load and heat load modes. The authors of the article study electro-mechanical drive used for moving a riding cutoff valve in a turbogenerator control system. The authors describe the requirements to it. Based on dynamic characteristics of the electro-mechanical drive produced by the joint company “Diakont”, the authors construct a model of a control system, which guarantees the emergency shut-down mode operation. The protection control system structure guarantees the independence of its operation from the condition of a turbogenerator control system. 

DOI: 10.7256/2453-8884.2018.1.25724

Abstract: The paper deals with the problems of fire and ecological safety of modern heat supply facilities, in particular boiler rooms and combined heat and power plants (CHPP) Innovative methods and automation equipment of technological processes of boiler rooms and CHPP, which will allow to optimize technological processes and to reduce cost of production of thermal energy and also to recover natural cycles of circulation of oxygen, water and carbon by means of biotunnels, biohumus and biothermal technologies absorbing and utilizing harmful bursts of boiler rooms and CHPP in a geosphere are offered and described. The methodology of the solution of the specified problems consists in changing the subsystems of chemical water purification, optimization of boilers’ energy potential usage and in providing the required levels of fire, ecological and energy safety. The novelty of the proposed solution is in the application of the steam screw machines which increase efficiency by using the excessive steam pressure utilized in special reduction and cooling installations and in application of the air separators, allowing to burn the hydrocarbon fuel in the oxygen and to use the remaining inert gases to prevent and suppress fire hazards.

DOI: 10.7256/2453-8884.2018.3.27557

Abstract: The subject of research is the issue of managing the geometric quality of processing, the definition of technological regimes, and tool parameters to ensure a priori defined requirements for the quality of the surface of the workpiece. , cutting speed.The main conclusions of the study are that when milling the surface with cutters whose diameter is less than the width of the surface being processed, the relief formed is not regular. The width of the treated surface can be used to distinguish the area in which there is a non-stationary doubling of the tool wake period. Moreover, this area is unstable. It was also found that the cutting speed has a contradictory impact on the quality parameters of the formed surface. On the one hand, as the cutting speed increases, the gradients of stresses and strains in the treatment zone increase, which has a positive effect on the formed relief. In the other, as the speed increases, parametric effects of the dynamics begin to appear, causing beats and the formation of waviness on the surface with unacceptable parameters.

DOI: 10.7256/2453-8884.2017.1.21781

Abstract: The research subject is the development of a termo-baromagnetic air separator, synergetic technological processes, methodological and calculation bases for design of progressive pilot and demonstration objects, optimizing fuel combustion with oxygen, separated from air, absorbing and utilizing carbon dioxide and water, and compensating burnt oxygen. The described scientific research generalizes the fundamental and applied research in the field of geophysics, geochemistry, thermodynamics, electromagnetism, construction, ecology, economics, and law, and helps design the synergetic model of restoration of oxygen, water, and carbon cycles, which can serve as a base for the technology of optimal burning of natural gas, solid and liquid fuel, and gasification products, carbon dioxide and water absorption and utilization with compensation of oxygen, burnt out of the atmosphere during fuel burning. The research methodology includes the creation of a new bio-transport-energy paradigm, which will help reduce socio-economic losses caused by transport emissions and thermal power stations, and by accidents, fires and road accidents, caused by wrong approach to the formation and functioning of technosphere. Unlike the cost-intensive nature of the compliance with competition documents (clause 2.3.4. “general expenditures for CO2 removal – not more than 400 rubles per ton” and clause 2.3.5. “expenditures for burial about 100 rubles per ton of CO2”), which will tot to 24,96 billion rubles per year for road and transport infrastructure of Rostov-on-Don (for removal) and 6,24 billion rubles per year (for burial) correspondingly, the proposed project estimates nonrecurring costs for “bio-architecture” of Rostov-on-Don at 14,49 billion rubles, and 650,0 billion rubles for the “PARSEK” systems launching in all thermal power and boiler stations of Rostov, which will be repaid in 8,3 years. 

DOI: 10.7256/2453-8884.2016.1.21034

Abstract: The subject of this project is the nanotechnologies of gas separation of the atmospheric air and creation of air separators and fire equipment that is based upon it (membrane and thermomagnetic). There were also plans to research and develop a technology for local suppression of fire by nitrogen separated from the air, as well as prevention of methane explosions in coal mines and spontaneous peat combustion by creation of nitrogen environment within them. The use of air separators would certainly be promising for use in residential sector, which is the area where over 70% of all fires take place. The methodology of this research is based on the properties of nitrogen that “block the activity of oxygen” in the air, as well as the “paramagnetic properties” of oxygen and “diamagnetic properties” of other atmospheric gases. The novelty of the proposed solutions is protected by patents registered in the Russian Federation for both, the membrane and thermomagnetic separators, as well as means of protection against spontaneous combustion of peat and methane explosions in coal mines. An undisputable advantage of use of nitrogen separated from air to suppress fire is the fact that unlike using water, the nitrogen does not harm the structure, electronics, or household goods.

DOI: 10.7256/2453-8884.2018.2.26072

Abstract: The object of the research is the existing methods and diagnostics means of the condition of peat deposits and suppression of peat fires. The author carried out a system analysis of the problems connected with formation and use of peat with due consideration of its increased fire danger. The article shows that suppression of peat fires with water makes it impossible to exploit the peat fields. The author offers a model of the automated complex of detection, prevention and suppression of fire with the existing gas peat trunks which are constructively improved and turned to thermoelectroprobes that allow to suppress the process of self-heating of peat by means of atmospheric nitrogen received using the air separation method. The methodology of the research is based on a new domestic method of peat "nitrating" protected by the patent of the Russian Federation for inventions. The novelty of the research lies in synthesizing a diagram of vertical electric sounding of the peat bog (known since the last century) by means of appropriate finishing of gas-peat trunks to thermoelectroprobes in the course of development of the automation model, in addition to the thermal location and suppression of the center of self-heating of peat using gas-peat trunks (the thermoprobes offered in the specified patent of the Russian Federation).

DOI: 10.7256/2453-8884.2016.2.20898

Abstract: The object of this research is the existing fire protection systems of residential high-rise buildings which as the statistics of the fires testifies, aren't adequate to their fire danger. It is shown that the fire safety of the population living in "skyscrapers", caused by time of evacuation of people in cases of fires, is inversely proportional to the number of floors of the building and, despite the existence of isolated staircases in high-rise buildings, the probability of death in them is 4.16 times higher than in apartments and one to two story houses. As a result of system synthesis, the author offers a model which realizes self-organization of three processes: early detection of fire with the corresponding notification; existence and availability of an “fire isolated stairway”; suppression/delay of spread of fire by nitrogen separated from the air. The scientific novelty of this research consists in a combination of aspiration and thermomagnetic methods of detection and suppression of fire in protected rooms by nitrogen separated from the air. At the same time, the notification of residents about need for evacuation is provided, and the automatic fire alarm system transmits an alarm signal to the nearest fire station.