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MAIN PAGE > Journal "Electronics and Machinery" > Rubric "Mechanical Engineering and Engineering Science"
Mechanical Engineering and Engineering Science
Iureva R.A., Kotel'nikov Y.P., Maltseva N.K., Vedernikov K.A. - Study of electric drive used for moving a riding cutoff valve in a turbogenerator control system pp. 7-13


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. 
Zakharevich V.G., Matishov G.G., Shumeiko V.I. - Creation of thermo-baromagnetic air separator and fuel combustion synergetic models, based on carbon dioxide and water absorption, compensating burnt oxygen pp. 16-44


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. 
Voroshilov I.V., Meskhi B.C., Prilutskii A.I. - Development and production of air separators and fire safety products on their basis (project No. 2013-218-04-023) pp. 21-71


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.
Bakhmatskaya L.S., Oleinikov S.N., Perikov A.V. - Synthesis of aspiration and thermomagnetic methods of allocation and suppression of fire and electrical harm in the automated system of safety of residential bocks pp. 88-95


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.
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