BazTech - Yadda

1

Model of exhaust system of a traction diesel engine with pulse supercharging on transient modes

Babel M., Kossov E.

Combustion Engines

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2017

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R. 56, nr 1

38--45

EN

A mathematical model of joint operation of a piston engine with pulse turbine drive, compressor as well as air supply of a diesel locomotive is presented in the article. This model in an integral part of the complex engine-generator power unit of a diesel locomotive in steady states and transient conditions, developed by the authors. The periodic process in the exhaust manifold is represented as two specific characteristic ranges which encompass the process of forced exhaust and the scavenging process. The scavenging calculation is carried out jointly with the processes taking place in the inlet manifold of the engine, including inlet devices of the locomotive. The process of forced exhaust is calculated separately from the inlet processes and doesn`t require usage of empirical coefficients of impulsiveness. Both processes are represented as systems of nonlinear algebraic equations describe in the quasi-steady flow of working fluid in the elements of the inlet and exhaust tracts. The gas-dynamic calculation of the turbine in the transition process is conducted while taking into account changes in flow angles on the rotor blades. As a result of numerical calculation of the a8S22W diesel operational indices in transient modes, a satisfactory compliance of the calculated and the experimental results was obtained.

2

Improvements in transient performance under locomotive diesel-generator mode changing conditions

Kossov E., Babeł M., Furman V.

Czasopismo Techniczne. Mechanika

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2014

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R. 111, z. 1-M

41--48

EN

The algorithm of transient process control in electrohydromechanical united regulator of locomotive diesel generator and in microprocessor system of adjusting diesel crankshaft rotation frequency and power of traction generator ERChM30T is observed. The new definition of speed restrictive performance of transient process is given as well as methods of its determination and representation in microprocessor system.

PL

Zastosowanie elektronicznego regulatora obrotów wału korbowego i mocy prądnicy trakcyjnej ERCM30T, w miejsce elektrohydraulicznego, pozwala znacznie polepszyć jakość regulacji procesu przejścia i wyeliminować nieproduktywną dawkę paliwa. Przedstawiono metodykę określenia dopuszczalnej dawki paliwa w procesie przejścia zespołu silnik-prądnica lokomotywy spalinowej.

3

Lokomotywy z silnikiem turbinowym

Kossov E., Babeł M.

Pojazdy Szynowe

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2013

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Nr 1

29--33

PL

W artykule przedstawiono zagadnienia celowości zastosowania silników turbinowych na środkach transportu, określono zadania, rozwiązanie których pozwoli zbudować lokomotywę nowego pokolenia z silnikiem turbinowym. Zaprezentowano obliczenia trakcyjne dla trzech wariantów lokomotyw z silnikiem turbinowym, opisano schemat perspektywicznego silnika turbinowego dla lokomotyw, przedstawiono charakterystyki porównawcze sprawności silników turbinowych i silnika wysokoprężnego lokomotyw, dokonano oceny wskaźników trakcyjnych i energetycznych perspektywicznych lokomotyw liniowych z silnikiem turbinowym.

EN

The issues of advisability of using the turbine engines for means of transport are presented in this article. The tasks whose solution will allow to build a new generation locomotive with the turbine engine are also specified. The traction calculations for three variants of locomotives with the turbine engine are presented. The diagram of the perspective turbine engine for locomotives is described. The comparative performance characteristics of the turbine engines and the diesel engine of locomotives are shown. The traction indicators and the perspective energy regular locomotives with the turbine engine are assessed.