Abstract.The article discusses about the increase in operational fuel consumption of shunting locomotives in the cold season. Possible solutions to this problem through the use of diesel engines with dry crankcase are considered. The technique of evaluating the thermal state of the diesel engine and the calculation of fuel consumption of heating boiler are provided. IntroduceRailway transport is carrying out more than 70% of transportation in Kazakhstan, and, therefore, it is one of the major consumers of fuel and power resources (F&PR) of the country. More than 50% of transportation process is carried out by locomotives.An integral part of transportation process is shunting operation. It grows along with the development of transportation, increase in network spread and number of stations performing technical and commercial operations. Shunting operations are performed by diesel locomotives only. The main operator of transportation process in Kazakhstan railroads, providing with locomotive traction, is JSC "Locomotive", and its annual fuel consumption makes 700÷800 thousand tons. Taking into account the fact that 40÷50% of all railroads operating costs in Kazakhstan consist of fuel consumption and locomotives power supply, it is obvious that saving of fuel and power resources (F&PR) is an important reserve for energy efficiency increase. The total fuel quantity, consumed by diesel locomotivesThe total fuel quantity, consumed by diesel locomotives, is based on fuel consumption by operation type
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