INCREASING EFFICIENCY OF THE DIESEL ENGINE STARTING

Introduction. The paper is devoted to the investigation of the D-type diesel engines’ start-up of the B-2 type under low temperatures, especially to the influence of the fresh charge temperature on the starting characteristics of the diesel engines. The Russian Federation is located in climatic zones with predominance of low ambient air temperatures and under extreme conditions. However, such situation is not adequately studied in scientific literature.

The main problem is in the search for rational values of the temperature of the fresh charge at the beginning of the compression stroke. The increase of such temperature leads to the decrease in the oxygen mass, and to the decrease to an insufficient temperature at the end of the compression stroke and, as a result, it would not provide ignition. Therefore, the aim of the research is to substantiate the rational values of the fresh charge temperature and further practical implementation of these values at modern BTWT facilities.

Materials and methods. The author uses standard theoretical and theoretical methods based on widely approved dependences of the piston internal combustion engines’ theory, gas dynamics and thermodynamics, which have been refined taking into account the features of the diesel engine start. Results. As a result, the author determines rational values of the fresh charge temperature, makes the analysis of the pre-launch preparation and facilitating of the D-type diesel engines’ start-up and demonstrates the method of increasing and further stabilizing of the temperature of the inlet charge at modern BTWT facilities.

Discussion and conclusion. The research confirms the rational values of the fresh charge temperature, by using of which the diesel has the best starting characteristics. The author also proposes a technical solution for values’ realization by using a vortex induction heater.

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