Abstract
Currently, mobile technological machines and tractor units are mainly equipped with internal combustion engines. Increase in productivity and fuel efficiency of tractor units determine the effectiveness of mechanized production processes in the national economy of the country. As a result of the analysis of literature sources, it was established that one of the promising ways to improve the fuel economy of internal combustion engines is the use of water injection into the intake manifold. The paper presents the results of research on the effect of water injection on increasing engine power and improving its fuel economy. As a result of mathematical modeling, it was established that at the nominal operating mode of the diesel engine 4F 11/12.5 (D-240), the introduction of 30% water into the fuel–air mixture allows to increase the effective power on 10.69 kW or 19.38% (from 55.15 to 65.84 kW). The results of the experimental verification showed an increase in the effective power in a similar mode to 65.99 kW (by 19.59%). Thus, the discrepancy is 0.25–0.50%. The error in calculating the average indicator pressure is 3.95%, which indicates the acceptability for practical purposes of calculating the parameters of the indicator diagram of a diesel engine 4F 11/12.5 (D-240) when using water injection. In the latter case, the relative savings of diesel fuel reaches 36 g/(kW h).
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Startcev, A., Romanov, S., Vagina, O. (2019). Increasing Engine Power by Applying Water Injection. In: Radionov, A., Kravchenko, O., Guzeev, V., Rozhdestvenskiy, Y. (eds) Proceedings of the 4th International Conference on Industrial Engineering. ICIE 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-95630-5_223
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DOI: https://doi.org/10.1007/978-3-319-95630-5_223
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