Studying the tractor diesel high-pressure fuel supply system operation on fuels with the rapeseed oil addition

Ensuring the full-fledged operation process in a tractor diesel engine cylinder requires reliable and complete fuel supply to the combustion chamber in accordance with the specified fuel supply law. Uninterrupted fuel supply is formed in the fuel system high-pressure line. The paper proposes a method for determining the fuel supply characteristics taking into account the law of the heat input, as well as density and compressibility of fuel with the rapeseed oil additives. It presents a methodology for conducting a research. The paper presents results and graphical dependencies of the high-pressure fuel pump speed characteristics operating on the mixed fuel with the rapeseed oil content of 20 ... 60% at different positions of the all-mode regulator control lever. It theoretically establishes and experimentally confirms that an increase in the rapeseed oil content from 0 to 60% raises relative alteration in the cyclic supply and active plunger stroke from 0 to 12 and 15%, respectively. Convergence of the theoretical computation results with the experimental data constitutes 92%.
EDN: ZUQZJO, https://elibrary/zuqzjo

References

[1] Venkatesan V., Nallusamy N., Nagapandiselvi P. Performance and emission analysis on the effect of exhaust gas recirculation in a tractor diesel engine using pine oil and soapnut oil methyl ester. Fuel, 2021, vol. 290, art. 120077, doi: https://doi.org/10.1016/j.fuel.2020.120077

[2] Pham Q., Park S., Agarwal A.K. et al. Review of dual-fuel combustion in the compression-ignition engine: spray, combustion, and emission. Energy, 2022, vol. 250, art. 123778, doi: https://doi.org/10.1016/j.energy.2022.123778

[3] Buzikov Sh.V., Plotnikov S.A., Kozlov I.S. Determination of the limit concentration of rapeseed oil in blended fuels used in diesel engines. Vestnik transporta Povolzhya, 2021, no. 1, pp. 72–79. (In Russ.).

[4] Vedruchenko V.R., Kraynov V.V., Litvinov P.V. The influence of properties of different brands of fuel for diesel engine on characteristics of fuel feeding. Vestnik SibADI [The Russian Automobile and Highway Industry Journal], 2016, no. 2, pp. 44–50. (In Russ.).

[5] Bondarenko N.I. Stable difference scheme for solving the problem of unsteady viscous flow in a pipe. Tendentsii razvitiya nauki i obrazovaniya, 2021, no. 79-2, pp. 109–112, doi: https://doi.org/10.18411/trnio-11-2021-75 (in Russ.).

[6] Liu L., Peng Y., Huang L. et al. Evaluation of impingement effects on high-power diesel engine mixing process with an optimized stochastic combustion model. Fuel, 2022, vol. 328, art. 125239, doi: https://doi.org/10.1016/j.fuel.2022.125239

[7] Khuong L.S., Hashimoto N., Fujita O. Spray, droplet evaporation, combustion, and emission characteristics of future transport fuels for compression-ignition engines: a review. J. Traffic Transp. Eng., 2024, vol. 11, no. 4, pp. 575–613, doi: https://doi.org/10.1016/j.jtte.2024.04.003

[8] Aldhaidhawi M., Chiriac R., Badescu V. Ignition delay, combustion and emission characteristics of Diesel engine fueled with rapeseed biodiesel — a literature review. Renew. Sust. Energ. Rev., 2017, vol. 73, pp. 178–186, doi: https://doi.org/10.1016/j.rser.2017.01.129

[9] Roknia H.B., Guptac A., Moorec J.D. et al. Purely predictive method for density, compressibility, and expansivity for hydrocarbon mixtures and diesel and jet fuels up to high temperatures and pressures. Fuel, 2019, vol. 236, pp. 1377–1390, doi: https://doi.org/10.1016/j.fuel.2018.09.041

[10] Bediaga H., Moreno M.I., Arrasate S. et al. Multi-output chemometrics model for gasoline compounding. Fuel, 2022, vol. 310-A, art. 122274, doi: https://doi.org/10.1016/j.fuel.2021.122274

[11] Yusri I.M. A review on the application of response surface method and artificial neural network in engine performance and exhaust emissions characteristics in alternative fuel. Renew. Sust. Energ. Rev., 2018, vol. 90, pp. 665–686, doi: https://doi.org/10.1016/j.rser.2018.03.095

[12] Li G., Hu Z., Hou F. et al. Machine learning enabled high-throughput screening of hydrocarbon molecules for the design of next generation fuels. Fuel, 2020, vol. 265, art. 116968, doi: https://doi.org/10.1016/j.fuel.2019.116968

[13] Knudsen E., Doran E.M., Mittal V. et al. Compressible Eulerian needle-to-target large eddy simulations of a diesel fuel injector. Proc. Combust. Inst., 2017, vol. 36, no. 2, pp. 2459–2466, doi: https://doi.org/10.1016/j.proci.2016.08.016

[14] Salvador F.J., De la Morena J., Mart?nez-L?pez J. et al. Assessment of compressibility effects on internal nozzle flow in diesel injectors at very high injection pressures. Energy Convers. Manag., 2017, vol. 132, pp. 221–230, doi: https://doi.org/10.1016/j.enconman.2016.11.032

[15] Markov V.A., ed. Motornye topliva, proizvodimye iz rastitelnykh masel [Motor fuels produced from vegetable oils]. Riga, Lambert Academic Publ., 2019. 420 p. (In Russ.).

[16] Buzikov Sh.V. Analysis of research concepts for the use of alternative fuels in diesels. Transport na alternativnom toplive [Alternative Fuel Transport], 2022, no. 1, pp. 66–70. (In Russ.).