No 11-12 (2015)
POWER ENGINEERING
3-10 358
Abstract
Developing a network of underground gas storage in the European part of Russia is one of the most important strategic objectives supply gas to both Russian consumers, as well as export. In conditions of market relations with neighboring countries, associated with Russia as a major supplier of gas, taking into account the peak demand for natural gas, the exploitation of underground gas storage solves the problem of a uniform loading of the trunk gas pipeline taking into account the uneven inflow gas and gas consumption. The article discusses the approach to assessing the effectiveness of the system of combined type drive UGS, particularly in the multicyclic UGS operation in rock salt.
11-19 433
Abstract
Studied influence features of the chemical composition of various transformer oils into their optical characteristics in the visible and near infrared region of the spectrum.
20-25 361
Abstract
On the basis of the application (diffusion model and cell model) models of flow structure obtained an expression for the calculation of the efficiency of water decarbonisation in the packed bed.There is a satisfactory agreement between the results on the effectiveness of decarbonisation with the known data. The advantage of the above approach in this article, and the resulting expression to determine the effectiveness of water decarbonization, is the ability to perform calculations of new nozzles for which there is no experimental data on the effectiveness of decarbonization.
26-29 524
Abstract
The article features practical application of solar photovoltaic modules in the city of Kazan. It presents the results of studies of obtained values of electricity, using a single-crystal panel FSM - 200M, with and without the position of the sun, by adjusting the angle of inclination at different times of the year.
30-38 389
Abstract
The paper presents the results of experimental determination of the adsorption coefficient and thermal conductivity of cobalt-based catalyst granulated porous aluminum oxide in the hydration process. Cobalt catalysts having a cylindrical shape with dimensions (0,85-1,25)mm, are intended for the implementation of their processes of decomposition of single-component liquid propellants hydrazine and nitrogen oxides. Study of thermal conductivity and adsorption properties of technically important composites in the solid phase at room temperature is of great scientific and practical importance. Systematic investigation of thermal conductivity and coefficient of adsorption gives valuable information about the nature of materials, to determine their practical use, they also serve as a basis for further development of solid-state physics. Knowledge of thermal conductivity and adsorption characteristics are particularly important in the design of industrial heat set. a variety of types.
48-55 358
Abstract
In the article analysis and describes the main factors influencing the energy efficiency of cathodic protection determined by the ratio of the conductivity of the electrolyte surrounding the underground (submerged) metallic structure (piping) and its polarization resistance. Our results are valid primarily if the pipeline of a modern high-quality insulation with high dielectric properties is made, for example, based on polymers or their compositions and are designed primarily for their use in protection against electrochemical corrosion of underground pipelines.
56-59 321
Abstract
The article considers the possibility of application of thermoelectric device to further cooling the oil transformer. The results of changes in heat flow with time at different variants of the device presented.
60-63 356
Abstract
Replace power equipment in large quantities is extremely expensive. One possible way to increase the capacity of operating equipment is an organization of more intensive heat removal. The work of the thermoelectric converter in the cooling system investigated.
64-68 366
Abstract
Proposed is a jet-bubbling contact device for mass transfer apparatus. A distinctive feature of the jet-bubble contact devices is the original organization of interaction between the gas and the liquid, allows to intensify the mass transfer processes in a relatively simple hardware design. The results of the study to determine the average value of the Reynolds number for the falling drops.
69-79 416
Abstract
The analysis of the largest Russian coal fields in terms of possibility of mined coal use in gasifiers for energy and chemical production was conducted in the article. A review of the current worldwide gasification technology and the chemicals production from syngas was given. The bases of methanol, ammonia and carbon monoxide production from syngas were presented. The data for the gasification time of coal dust and coal-water fuel and required components content for methanol, carbon monoxide, ammonia production were calculated.
80-86 373
Abstract
The conducted researches allowed to reveal shortcomings of the existing techniques of thermo vision control of an assessment of a condition of transformers one of which is low extent of automation of the analysis of thermo grams.
ELECTRICAL ENGINEERING
87-96 397
Abstract
The expediency and effectiveness of the continuous gradient method of search of a minimum of function for identifying the parameters of three phase asynchronous motor and its load is shown using computer modeling and research. It is established that the proposed method provides high accuracy of determining the parameters, robustness and good convergence when changing the initial values of the parameter estimates in a wide range. Of particular significance is the fact that identification is carried out even at zero initial values of the parameter estimates.
INSTRUMENT-MAKING, METROLOGY AND INFORMATION-MEASURING INSTRUMENTS AND SYSTEMS
97-107 568
Abstract
For the moment there is a change-over of electric-power industry performed to the new technology platform, which is based on the Smart Grid concept. The significant components of such grids the distributed generation plants are, including those implemented on the basis of renewable energy sources. Centralized control system of numerous distributed generation plants becomes inefficient due to the need of transfer of large communication flow to the center for taking decision. Rising up the efficiency of control is possible by the means of implementation of peripheral systems actualized on the basis of agent approach. The framework of multi-agent controlling system (MACS) is proposed in the article in order to control the power of distributed generation plants, implemented on the basis of turbine-type alternatives. The major functions of the agents, forming an interactive network are described. The system of differential equations, describing the processes in electric power supply system containing distributed generation plants is represented. The model of offered MACS is developed in the “AnyLogic” imitating modeling environment. The results of modeling have demonstrated positive effects achievable within the presence of MACS. The adaptability of the system against variable conditions and applicability of the multi-agent technologies during creation of electric power supply smart grids was demonstrated.
TO THESIS DEFENSE
108-113 414
Abstract
In the context of this article are considered cost-effective interventions heating circuit Kazan, under the formation of a single heat supply organization and the main directions of improving the energy efficiency of heat supply organizations.
REVIEWS AND INFORMATION
ISSN 1998-9903 (Print)
ISSN 2658-5456 (Online)
ISSN 2658-5456 (Online)