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2 Journal of Ecological Engineering

2 2016

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Measurement and analysis of transmission losses in the supply system of electrified transport

Bartłomiejczyk M., Hołyszko P., Filipek P.

Journal of Ecological Engineering

2016

Vol. 17, nr 5

64--71

The issue of electric energy saving in public transport is currently becoming a key area of interest, a fact connected with both an increase in society’s environmental awareness and a rise in the prices of fuel and electricity. Electricity can be saved by reducing transmission losses in the supply system. The article presents a method of measurement and analysis of transmission losses in the supply system of electrified public transport on the example of trolleybus transport in Gdynia and Lublin in Poland.

Estimation of the running costs of autonomous energy sources in trolleybuses

Hołyszko P., Filipek P. Z.

Journal of Ecological Engineering

2016

Vol. 17, nr 5

101--106

The article analyses the performance characteristics and operating costs of the three types of trolley-buses equipped with alternative energy sources, which are used by the MPK (Municipal Transport Company) in Lublin. The selected applications are adapted for driving off traction in emergency mode as well as servicing the regular route. Two of them are based on electrochemical batteries and one uses a system with an electric generator driven by an internal combustion engine.