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The Guaranteed Power Supply System on the Base of Alternative and Renewable Energy Sources

Abramovich B. N., Sychev Y. A., Fedorov A. V.

Electrical Power Quality and Utilisation. Journal

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2015

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Vol. 18, iss. 1

1--6

EN

The necessity of developing and implementation of the guaranteed power supply system using distributed generation on the base of alternative and renewable energy sources is proved in conditions of responsible technological processes. The theoretical and experimental researches were made in raw mineral enterprises, which have a great amount of responsible technological consumers. The permitted duration of power supply interruption for responsible consumers of continuous technological processes of raw mineral industry is determined. The effectiveness of distributed generation using for guaranteed power supply mode is shown. The reasonability of solar, wind and followed oil gas energy applying in role of power sources for distributed generation is also proved in the paper. The basic variants of guaranteed power supply system structure are described and offered in the paper for all kind of industry and technique, especially for responsible digital control systems and telecommunications.

2

Betonirovanie v zimnih usloviah: opyt Finlandii

Fedorov A.V.

Budownictwo o Zoptymalizowanym Potencjale Energetycznym

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2004

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nr (2)

72--81

RU

Rassmatrivautsa problemy betonirovania v zimnih usloviah na opyte stroitel’nyh firm Finlandii. Privodatsa dannye o vlianii razlicnyh faktorov na polucenie trebuemyh kacestv betona pri betonirovanii v zimnih usloviah i ukazyvaetsa, cto sobludenie vseh principov proizvodstva rabot vedet k znacitel’nomu snizeniu potreblenia energii polucaemoj betonom v rezul’tate ego teplovoj obrabotki.

3

Problem of detonation excitation in

Fedorov A. V., Khmel T. A.

Archivum Combustionis

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2001

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Vol. 21 nr 1

57-69

EN

This paper is devoted to numerical modeling of combustion and detonation processes in aluminium aerosuspension clouds located in a plane channel under a shock-wave excitation. An incident shock wave is characterized by rectangular pressure profile or propagetes with an adjacent rarefaction wave. Different scenarios of detonation wave developing are obtained depending on the incident shock wave amplitude and profile. The critical values of initation total energy are calculated for different particle fractions. The problem of the shock wave interaction with the cloud of finite width is considered in 2-D nonsteady approximation. The diminishing of the coarse particle cloud width with respect to the channel cross-section leads to combustion zone arisen not to join the leading shock wave front that prevents the detonation structure formation. For fine particle clouds the detonation structure forms at the same conditions.

4

Self-sustained regimes of non-ideal detonation of aluminium particle aerosuspension (two-temperature model)

Fedorov A.V., Fomin V.M., Khmel T.A.

Archivum Combustionis

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1998

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Vol. 18 nr 1-4

135-147

EN

Steady detonation regimes in an aerosuspension of aluminium particles is studied on the basis of the mathematical model of heterogenerous detonation with regard for differences in phase velocities and temperatures. The presence of unburned particles in detonation products conditions the sound speed dispersion in the final steady state. The manifolds of existance of Chapman-Jouguet and weak solutions in the plane of relaxation parameters are obtained. Steady-state solutions are tested for stability in the problem of propagation of piston-assisted detonation wave. All steady regimes are stable including the weak regime with a saddle final point. The problem of detonation wave interaction with an adjacent nonequilibrium rarefaction wave at instantaneous removal of thepiston is solved. It is obtained that Chapman-Jouguet and weak regimes including a regime with intermediate sonic final point are self-sustained. Strong regimes are transformed to either Chapman-Jouguet or weak regime depending on the relaxation parameters.