Abstract
Existing railway rolling stock compressors capacity and main reservoirs volume calculations methods were created in 1960−1970 and do not take into account the achievements of modern railway pneumatic technologies and the results of calculations of compressor capacity and main reservoir volume is inaccurate. The new calculation technology begins from total compressed air consumption for braking processes, air leaks and auxiliary needs definition. Knowing all compressed air consumption possibilities, compressor capacity is calculated. Then it is possible to calculate compressed air production system main reservoirs volume. Calculated compressor capacity and main reservoirs volume should be equal to air consumption for train brakes release and charge after service or emergency braking, for this purpose balance equation between produced and charged air is used. If railway rolling stock is operated in high humidity conditions without composed air dehumidification system main reservoirs useful volume decreasing. For that specific climate conditions compressor capacity should be corrected.
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