2010. №12

СОДЕРЖАНИЕ

THERMAL POWER PLANTS

The numerical analysis of pulverized coal burning with various heat properties in a furnace of boiler BKZ -420-140-2

Ph.D Andrei Gil , Tomsk Polytechnic University
Dr. Alejksandr Zavorin, Tomsk Polytechnic University
Dr. Alejksandr Starchenko, Tomsk State University
Sergei Obukhov, Omsk Branch of JSC «Territorial Generation Company №11»

The results of numerical studies using a software package FIRE 3D processes of mass transfer and combustion in the furnace of boiler BKZ-420-140-2 at replacement base Ekibastuz coal on Kuznetsk coal stone kind D and brown coal Irsha-Borodino kind 2B.

Keywords: boiler, burner, coal, temperature, combustion, aerodynamics, heat transfer, mathematical modeling.

System for optimization of distribution of boiler loadings and turbines of the Grodno CHP-2

Ph.D Mikhail German, «BelTEI»
Ph.D Vyacheslav Shcherbich , RUE «BelTEI»
Sergei Pekarchik, RUE «BelTEI»
Vladimir Slovik, Grodno CHP-2

The information on results of working out and introduction of a complex of programs of optimization and distribution of loadings between boiler - and turbine units of the Grodno CHP-2 is given. Descriptions of the accepted technological decisions, structures of a complex of programs, structures of measured parameters and target messages are resulted.

Keywords: thermal power station, optimization, loadings of units, mathematical models.

On a steam-turbine set monitoring

Ph.D Anatolii Gordinsky , Berman Engineering Ltd, Israel
Ph.D Yakov Berkovich, Israel Electric Corporation
Leonid Levin, Israel Electric Corporation

A heat rate monitoring system for the power plant's steam turbine sets is considered. The system has passed the long-duration testing at the 575 MW unit of the Israel Electric Corporation and is built-in into the Corporation main information system. The principal difference of the monitoring system from known ones fulfilling similar functions is that its high-quality metrological properties have been ensured. This advantage allows maximize the probability of correct solutions at an estimation of the heat losses and the equipment condition.

Keywords: steam-turbine set, heat rate, monitoring, effectiveness.

Criterions valuation technical condition reinforced-concrete structure cooling tower

Dr Vyacheslav Davidenko , JSC "VNIIG"
Pavel Fotiev, JSC "Terra Nova"

Consideration causes destruction reinforced-concrete envelope hyperbolic exhaust-cooling tower and criterions valuation them capacity for work in dependence from water-absorption ,hydrogenous indicator , velocity passing ultrasonic wave and thickness protective layer concrete, and also bring tables valuation technical condition concrete envelope cooling tower in dependence from qualitative parameters

Keywords: cооling tower , water-absorption , corrosion concrete and envelope , longevity reinforced-concrete cooling tower , exploitation cooling tower in condition variable moisten and dry up, area watering

POWER SYSTEMS AND ELECTRIC NETWORKS

0,38 kV electric network electric loss calculation in real time with the help of power control and calculation PMCAS and PLC-technologies

Ph.D Nikolai Cheremisin, The Kharkov National Technical University of Agriculture (KNTUA)
Aleksandr Miroshnik , The Kharkov National Technical University of Agriculture (KNTUA)

The technique and program technical means for monitoring losses of the electric power is offered in view of influence of environment temperature and size of a proceeding current on resistance of elements of a network.

Keywords: electric energy losses, environment temperature, program-technical complex, AMSMEC.

EQUIPMENT OF POWER STATIONS AND SUBSTATIONS

Power transformer's oil pollution of and shunting reactors by metallic colloidal particles

Sergei L`vov, LLC «Presselektro»
Ph.D Komarov V.B., Institute of Physical Chemistry and Electrochemistry (IFCE of RAS)
Ph.D Bondareva V.N., Institute of Physical Chemistry and Electrochemistry (IFCE of RAS)
Ph.D Seliverstov A.F., Institute of Physical Chemistry and Electrochemistry (IFCE of RAS)
Lyutko E.O., JSC «R&D Centre for Power Engineering»
Dr Yurii L`vov , JSC «R&D Centre for Power Engineering»
Dr. Ershov B.G., Corresponding Member of Russian Academy of Sciences (RAS), Institute of Physical Chemistry and Electrochemistry (IFCE of RAS)

Results of measurement of pollution of oil in 66 transformers by the metallic colloidal particles formed as a result of interaction of oil with constructional materials (copper of windings, iron of tank and core, etc.), and also results of measurements of an optical turbidity of oil in 136 transformers are resulted at carrying out of their inspection in JSC «R&D Centre for Power Engineering». Methods of definition of concentration of copper and iron in transformer oil are considered. Boundary values of indicators of an optical turbidity, the maintenance of copper and iron which can form the basis for decision-making on replacement силикагеля filters of continuous clearing of oil of power transformers and shunting reactors in addition to normalized indicators of pollution of oil - to a tangent of angle of dielectric losses and acid number of oil are defined.

Keywords: transformer oil, metallic colloidal particles, an optical turbidity, methods of definition of concentration of metals in transformer oil.

DISCUSSION

About system of the guaranteed protection of especially dangerous objects for prevention of technogenic accidents

In June, 2010 joint session of Scientific Council of the Russian Academy of Sciences on problems of reliability and safety of the big power systems and scientific - technical board of NP «STC of UES» on which the report of the Deputy director of JSC "NIKIET" Mr. M. Mikhajlov "System of the guaranteed protection of especially dangerous objects" was discussed

The analysis of domestic and foreign experience of reforming of electric power industry

Dr Valerii Vorotnitskii , JSC «R&D Centre for Power Engineering»

On materials of the monography of Mr.L. Beljaev. «Problem of the power industry market». Novosibirsk: Science, 2009.

THE CHRONICLE

XXIst World Energy Congress (Montreal, 12 -16 September, 2010)

News of the electrotechnical and power companies

Instruction for manuscript submission