02. Plotnikov S.A., Kartashevich A.N., Motovilova M.V. Evaluation of Combustion Performance and Heat Release in Preheated Fuel Consumed Diesel Engines

DOI: 10.15507/2658-4123.031.202103.349-363

Evaluation of Combustion Performance and Heat Release in Preheated Fuel Consumed Diesel Engines

Sergey А. Plotnikov
Professor of the Chair of Mechanical Engineering Technology, Vyatka State University (36 Moskovskaya St., Kirov 610000, Russian Federation), D.Sc. (Engr.), Researcher ID: R-8491-2016, ORCID: https://orcid.org/0000-0002-8887-4591, This email address is being protected from spambots. You need JavaScript enabled to view it.

Anatoly N. Kartashevich
Researcher of the Chair of Mechanical Engineering Technology, Vyatka State University (36 Moskovskaya St., Kirov 610000, Russian Federation), D.Sc. (Engr.), Professor, ORCID: https://orcid.org/0000-0002-3649-1521

Marina V. Motovilova
Postgraduate Student in the Chair of Mechanical Engineering Technology, Vyatka State University (36 Moskovskaya St., Kirov 610000, Russian Federation), ORCID: https://orcid.org/0000-0002-6857-3126

Introduction. The expansion of the fleet of tractors and vehicles causes increased requirements for internal combustion engines. This problem can be solved by improving the work process in a diesel engine that can be achieved by heating the diesel fuel in the fuel supply system. External thermal action is carried out on the high pressure line directly in front of the injectors.
Materials and Methods. To analyze and calculate the process of combustion and heat release in a diesel engine with preliminary thermal fuel preparation, bench tests were carried out using the National Instruments software and the necessary equipment.
Results. Experimental data of the diesel fuel combustion process in the cylinder of the 4CHN 11.0/12.5 engine are obtained. The analysis of the combustion performance and heat release of diesel with a preliminary high-temperature effect on the fuel was carried out. Indicator diagrams, graphs of heat release, the maximum average temperature of gases in the engine cylinder, and graphs of active and total heat release were constructed. The experimental data showed a decrease in the ignition delay period, the maximum cycle temperature in the engine cylinders, and an acceleration of the start of heat release and combustion process. The values of the parameters of the diesel fuel combustion process are obtained.
Discussion and Conclusion. On the basis of the conducted studies, the dependencies of the parameters of the combustion process of a diesel engine with fuel heating to high temperatures are revealed. Indicator diagrams allow drawing a conclusion about the influence of the fuel heating temperature on the intensification of the combustion process. There is an acceleration of the beginning of heat release, a decrease in the rate of pressure build-up and in the rigidity of the engine.

Keywords: indicator diagram, heat generation, fuel heating, combustion process, diesel engine

Conflict of interest: The authors declare no conflict of interest.

Acknowlegments: The work was carried under the treaty on scientific and technical cooperation between Vyatka State University and the Belarussian State Agricultural Academy. The authors express their gratitude to all parties to the treaty for their help in carrying out bench tests.

For citation: Plotnikov S.A., Kartashevich A.N., Motovilova M.V. Evaluation of Combustion Performance and Heat Release in Preheated Fuel Consumed Diesel Engines. Inzhenernyye tekhnologii i sistemy = Engineering Technologies and Systems. 2021; 31(3):349-363. DOI: https://doi.org/10.15507/2658-4123.031.202103.349-363

Contribution of the authors:
S. А. Plotnikov – general guidance, formulation of research objectives.
A. N. Kartashevich – theoretical analysis, formulation of conclusions.
M. V. Motovilova – ICE bench tests.

All authors have read and approved the final manuscript.

Received 30.04.2021; approved after reviewing 19.05.2021;
accepted for publication 27.06.2021

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