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Vibrations in engineering and technology

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 2(113)

Published: 2024.08.30
DOI: 10.37128/2306-8744-2024-2


Description:
The journal deals with the problems of vibration technologies and machines, mathematical methods of vibration process studies, information on design and technological development, presents teaching and methodological aspects of teaching in the Higher School of Applied Sciences, where vibration machines and technologies are studied.

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MATHEMATICAL SIMULATION OF THE WORKING PROCESS OF THE GAS-DIESEL CYCLE IN THE CYLINDERS OF THE POWERTECH 6068HF250 ENGINE

DOI: 10.37128/2306-8744-2024-2-13
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Lysenko Roman – postgraduate student of the Department of Agricultural Engineering and Technical Service of Vinnytsia National Agrarian University (3 Sunny Street, Vinnytsia, 21008, Ukraine, e-mail: romandmytrovich@gmail.com).

 

Annotation

Today, a trend has been established to expand the use of dual-fuel diesel engines, which is due to their greater efficiency and reduction of toxic emissions into the environment, in particular nitrogen oxides NOx. Modern data from academic research allow us to assert the prospects for the development of the use of gas-diesel engines in agriculture, but there is still no systematic approach to the use of this type of fuel technology. The mathematical model of the working cycle of a gas-diesel makes it possible to determine the optimal indicators in different modes of its load.

The purpose of the research: Calculate and analyze the thermal characteristics of the PowerTech 6068HF250 engine using the Hrynivetskyi-Mazing method in the Mathcad environment.

The main results of the study: The initial performance parameters of the PowerTech 6068HF250 engine in the gas-diesel engine mode turned out to be similar to the performance indicators of this engine in the pure diesel mode. An increase in engine power was detected when using a fuel mixture. The most promising alternative source in the dual-fuel system was the use of liquefied petroleum gas, due to the wide availability of this type of fuel, its economy and the possibility of minimal conversion using gas cylinder equipment up to the 4th generation. The existing data of scientific research by domestic and foreign scientists allow us to state the prospects for the development of the use of gas-diesel engines, but today there is no systematic approach to the use of this type of fuel equipment in agriculture. However, the conversion of serial diesel engines in agricultural tractors to dual-fuel systems with partial replacement of diesel fuel with reduced petroleum gas, which is the most effective way in terms of economy and operational characteristics, remains an open question.

The conclusion of establishing a rational mode of power rationing makes it possible to reduce the dose of spent gas fuel to such an amount that the power is equal to the nominal one.

 

Keywords: disel engine, the gas-diesel cycle, operational indicators, liquefied petroleum gas, fuel mixture.

List of references

1. Zakharchuk, V., Zakharchuk, O., Skalyga, M., Kuts, N., & Yaroschuk, V. (2024). Improving environmental indicators of the wheeled tractor diesel engine by using biofuels. Eastern-European Journal of Enterprise Technologies, 2(10 (128), 51–58 [in English].

2. Zhang, Z., Li, J., Tian, J., Dong, R., Zou, Z., Gao, S., & Tan, D. (2022). Performance, combustion and emission characteristics investigations on a diesel engine fueled with diesel/ethanol/n-butanol blends. Energy, 249, 123733 [in English]..

3. Shi, Z., Wang, J., Guo, X., & Liu, X. (2023). Multi-Objective Optimization of the Structural Design of a Combustion Chamber of a Small Agricultural Diesel Engine Fueled with B20 Blend Fuel at a High Altitude Area. Sustainability, 15(15), 11617 [in English]..

4. Mathur, S., Waswani, H., Singh, D., & Ranjan, R. (2022). Alternative fuels for agriculture sustainability: Carbon footprint and economic feasibility. AgriEngineering, 4(4), 993-1015 [in English]..

5. Mateichyk, V., Kostian, N., Smieszek, M., Gritsuk, I., & Verbovskyi, V. (2023). Review of Methods for Evaluating the Energy Efficiency of Vehicles with Conventional and Alternative Power Plants.Energies, 16(17), 6331 [in English]..

6. Abbasi, S., Bahrami, H., Ghobadian, B., & Kiani Deh Kiani, M. (2018). Energy analysis of a diesel engine using diesel and biodiesel from waste cooking oil.Journal of Agricultural Machinery, 8(1), 149-157 [in English]..

7. Mederle, M., Urban, A., Fischer, H., Hufnagel, U., & Bernhardt, H. (2015). Optimization potential of a standard tractor in road transportation.landtechnik, 70(5), 194-202 [in English]..

8. Nadykto, V., Findura, P., Kyurchev, V., & Orel, O. (2022). Influence of Biodiesel on Performance of Machine-Tractor Units.Acta technologica agriculturae, 25(1), 7-12 [in English]..

9. Schlosser, J. F., Farias, M. S. D., Bertollo, G. M., Russini, A., Herzog, D., & Casali, L. (2020). Agricultural tractor engines from the perspective of Agriculture 4.0. Revista Ciência Agronômica, 51(spe), e20207716 [in English]..

10. Pham, Q., Park, S., Agarwal, A. K., & Park, S. (2022). Review of dual-fuel combustion in the compression-ignition engine: Spray, combustion, and emission. Energy, 123778 https://doi.org/10.1016/j.energy.2022.123778

11. Tashev, A., & Dimitrov, E. (2022, September). LPG effect on performance parameters of diesel engine operated on dual-fuel mode. In AIP Conference Proceedings (Vol. 2449, No. 1).AIP Publishing [in English].

12. Kryshtopa, S., Panchuk, M., Kozak, F., Dolishnii, B., Mykytii, I., & Skalatska, O. (2018). Fuel economy raising of alternative fuel converted diesel engines. Eastern-European Journal of Enterprise Technologies, 4(8), 6-13 [in English].

 

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About journal

Topics of the journal:

The journal "Vibrations   in engineering  and technology" presents materials on the following issues

• Theory of processes and machines
• Mechanical Engineering and materialprocessing
• Processing and food production

The journal "Vibrations in Engineering and Technologies" is included in the list of technical scientific publications of Ukraine

(Category "B", Order of the Ministry of Education and Science of Ukraine dated July 2, 2020 No. 886)

Old version of the site: http://vibrojournal.vsau.edu.ua/

The journal "Vibrations in Engineering and Technology" is indexed by the following databases and catalogs:

 

 

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Key information:
ISSN (print): 2306-8744
DOI: 10.37128/2306-8744

The certificateof massmedia State registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University

Kind of publication: journal
Type of publication : Scientific
Publication status: Domestic
Year of founding:
Periodicity: 4 times a year
Extent: 18.75 nominal printed pages
ISSN: 2306-8744 (printed version), (online)
Language of edition  : (mixed languages) Ukrainian, English
The scope of the distribution and the category of readers: national, foreign, teaching staff, scientists, businessmen.
Periodical is included in the list of scientific professional editions of Ukraine approved by the Order of Ministry of Education and Sciences of Ukraine from 21.12.2015 No. 1328.
The journal "Vibrations in engineering and technology" is included in the "Catalogue of periodicals of Ukraine".
Journal subscription can be executed in each post office department.
 Subscription Index is  99720.

 

Old version of site: http://vibrojournal.vsau.edu.ua/

History of journal:

In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published  94 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Kaletnik H.M  PhD , professor, academician NAAS is the chief editor of the "Vibrations in engineering  and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.