Determining the optimal oxidation temperature of non-isothermal liquid fuels injections using modeling based on statistical droplet distribution

Authors

DOI:

https://doi.org/10.15587/1729-4061.2024.316100

Keywords:

liquid fuel, atomization, combustion, emissions, single-hole injection, thermal engines

Abstract

Single-hole injections of liquid hydrocarbon fuels (isooctane and dodecane) under high turbulence have been investigated using direct numerical simulation based on the statistical model considering the droplets’ atomization, distribution, and combustion. The study objects are the heat and mass transfer processes during atomization and combustion of liquid fuels injections within the combustion chambers of thermal engines. The temperature and carbon dioxide concentration distributions of the fuel-air mixture, the distributions of the droplets, their velocities, and the Sauter mean radius within the isooctane and dodecane oxidation in the engine’s combustion space were obtained. An investigation of the oxidizer’s initial temperature influence on the droplets’ atomization and combustion processes showed that the optimal temperature for both fuels is 900 K. The obtained modeling results were confirmed in good agreement with theoretical and experimental data.

Thanks to the integrated use of approaches from statistical theory, numerical algorithms and 3D computer modeling techniques, the results obtained are distinguished by high accuracy, efficiency in reducing computational resources, scientific novelty in the type of droplet atomization and suitability for practical application for technological solutions not only for single-hole, but also for multi-hole injections of liquid fuels and studying the jet-to-jet interaction phenomena.

The obtained research results can be applied in miscellaneous internal combustion engines development with different atomization types, which will allow us to contemporaneously settle the concerns of streamlining the combustion process, improving the completeness of fuel combustion and reducing emissions of harmful substances

Author Biographies

Aliya Askarova, Al-Farabi Kazakh National University

Doctor of Physical and Mathematical Sciences, Professor

Department of Thermal Physics and Technical Physics

Saltanat Bolegenova, Al-Farabi Kazakh National University

Doctor of Physical and Mathematical Sciences, Professor

Department of Thermal Physics and Technical Physics

Shynar Ospanova, Al-Farabi Kazakh National University

PhD, Senior Lecturer

Department of Thermal Physics and Technical Physics

Symbat Bolegenova, Al-Farabi Kazakh National University

PhD, Associate Professor

Department of Thermal Physics and Technical Physics

Gulzhakhan Baidullayeva, Asfendiyarov Kazakh National Medical University

Candidate of Physical and Mathematical Sciences, Associate Professor

Department of Normal Physiology with a Biophysics Course

Kazyret Berdikhan, Al-Farabi Kazakh National University

Doctoral Student

Department of Thermal Physics and Technical Physics

Akbota Nussipzhan, Al-Farabi Kazakh National University

Doctoral Student

Department of Thermal Physics and Technical Physics

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Determining the optimal oxidation temperature of non-isothermal liquid fuels injections using modeling based on statistical droplet distribution

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Published

2024-12-30

How to Cite

Askarova, A., Bolegenova, S., Ospanova, S., Bolegenova, S., Baidullayeva, G., Berdikhan, K., & Nussipzhan, A. (2024). Determining the optimal oxidation temperature of non-isothermal liquid fuels injections using modeling based on statistical droplet distribution. Eastern-European Journal of Enterprise Technologies, 6(8 (132), 44–55. https://doi.org/10.15587/1729-4061.2024.316100

Issue

Vol. 6 No. 8 (132) (2024): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2024 Aliya Askarova, Saltanat Bolegenova, Shynar Ospanova, Symbat Bolegenova, Gulzhakhan Baidullayeva, Kazyret Berdikhan, Akbota Nussipzhan

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