Issue №: 3(110)
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.
PHYSICO-MATHEMATICAL MODEL OF THE PROCESS OF PRESSING FUEL BRIQUETTES FROM PLANT MATERIALS
Govorukha Volodymyr - Doctor of Physical and Mathematical Sciences, Professor, Head of the Department of higher mathematics, physics and general engineering disciplines of Dnipro State Agrarian and Economic University (25 Serhiy Yefremova St., Dnipro, Ukraine, 49600, e-mail: govorukhavb@yahoo .com). ORCID 0000-0002-0936-9272.
Luts Pavlo – Candidate of Technical Sciences, Senior Lecturer of Department of machines and equipment of agricultural production of Vinnytsia National Agrarian University (St. Soniachna, 1, Vinnytsia, Ukraine, 21008, e-mail: luts@vsau.vin.ua). ORCID 0000-0002-3776-8940.
Kiselyov Oleksiy - Candidate of Technical Sciences, Senior Researcher of Institute of Mechanization of Animal Husbandry of National Academy of Agrarian Sciences of Ukraine (Zaporizhia, Ukraine, e-mail: awbakis@gmail.com).
In the process of forming a briquette, compression is characterized by a change in density, i.e., the process of translating a solid medium that has the properties of a bulk material and has a complex three-phase system consisting of natural polymers, sorbed moisture, air and particles of different shapes and sizes into a continuous solid medium with the properties of a monolith given shape and size. In it, the connection between particles is characterized by Van der Waals and Laplace forces. Different researchers describe this process with different empirical formulas, which are based on taking into account the relevant physico-mechanical and technological properties of pressed materials and their individual components.
The plant materials considered in the article, which are secondary products of the agro-industrial complex, have specific physical and mechanical properties. As a result, the development of a physico-mathematical model of the process of pressing fuel briquettes from vegetable materials of small-seeded and cereal crops is proposed for the purpose of research.
As a result of the analysis of literary sources, it was found that the physical and mechanical properties of pressed materials are determined by the fractional composition, humidity, pressing temperature, type and content of the binder. These indicators affect both the energy indicators of the process and the quality indicators of the briquettes.
The multi-component nature, origin and structure of materials of different nature entails the expansion of the variety of physical and mechanical properties that must be taken into account. The influence of elastic, viscous and frictional properties of the materials selected for pressing is considered and taken into account.
A physico-mathematical model of the process of pressing fuel briquettes from plant materials was developed, which allows determining the final density of the material, taking into account the peculiarities of briquetting using a stamp press with a crank mechanism.
It was established that the parameters and modes of operation of the stamp press briquetting machine with a crank-and-rod mechanism are interconnected with each other and the physical, mechanical and technological properties of the pressed material
1. Chen S., Zhao Y., Tang Z., Ding H., Su Z., Ding Z. Structural Model of Straw Briquetting Machine with Vertical Ring Die and Optimization of Briquetting Performance. Agriculture. 2022. 736 p. DOI: 10.3390/agriculture12050736 [in English]
2. Aliiev E.B., Patsula O.M., Hrytsenko V.T. Tekhnolohiia kompleksnoi bezvidkhidnoi pererobky makukhy z nasinnia oliinykh kultur z otrymanniam vysokoiakisnykh povnotsinnykh proteïnovykh dobavok u vyhliadi pellet ta tverdoho biopalyva. Naukovo-metodychni rekomendatsii. Instytut oliinykh kultur Natsionalnoi akademii ahrarnykh nauk Ukrainy. Elektronnyi analoh drukovanoho vydannia (elektronna knyha). Zaporizhzhia. 2017. ISBN 978-617-7353-59-0 [in Ukrainian]
3. Sengar S.H., Mohod A.G., Khandetod Y.P., Patil S.S., Chendake A.D. Performance of Briquetting Machine for Briquette Fuel. International Journal of Energy Engineering. 2012. 2 (1) P. 28–34. DOI: 10.5923/j.ijee.20120201.05 [in English]
4. Grover P.D., Mishra S.K. Biomass Briquetting: Technology and Practices. Regional Wood Energy Development Programme In Asia Gcp/Ras/154/Net. Field Document. 1996. Vol. 46. 48 p. https://www.fao.org/3/ad579e/ad579e00.pdf [in English]
5. Wang F.H., Tian Z.Y. The Virtual Design of Cluster Straw Fuel Briquetting Machine. In Advanced Materials Research. 299–300. 2011. P. 925–928. DOI: 10.4028/www.scientific.net/amr.299-300.925 [in English]
6. Aliiev E.B., Patsula O.M., Havryilchenko O.S. Rezultaty eksperymentalnykh doslidzhen ustanovky dlia vyhotovlennia palivnykh bryketiv z lushpynnoi fraktsii makukh nasinnia oliinykh kultur. Tekhnichni systemy i tekhnolohii tvarynnytstva: Visnyk Kharkivskoho natsionalnoho tekhnichnoho universytetu silskoho hospodarstva imeni Petra Vasylenka. 2016. № 170. С. 3–7. [in Ukrainian]
7. Aliiev E.B., Yaropud V.M., Havryilchenko O.S., Ivanchenko O.V., Patsula O.M. (2018). Ustanovka dlia vyhotovlennia palivnykh bryketiv. Tekhnika, enerhetyka, transport APK. Vinnytsia. 2018. № 4 (103). C. 69-74. [in Ukrainian]
8. Berdychowski M., Wilczyński D., Wałęsa K., Górecki J. Research on the compaction process of loose materials with use of helix technology. 2020. IOP Conf. Ser.: Mater. Sci. Eng. 776 012063. DOI: 10.1088/1757-899X/776/1/012063 [in English]
9. Marreiro H.M.P., Peruchi R.S., Lopes R.M.B.P., Andersen S.L.F., Eliziário S.A., Rotella Junior P. Empirical Studies on Biomass Briquette Production: A Literature Review. Energies. 2021. Vol. 14 (24): 8320. DOI: 10.3390/en14248320 [in English]
10. Kpalo S.Y., Zainuddin M.F., Manaf L.A., Roslan A.M. A Review of Technical and Economic Aspects of Biomass Briquetting. Sustainability. 2020. Vol. 12 (11): 4609. DOI: 10.3390/su12114609 [in English]
11. Obi O.F., Pecenka R., Clifford M.J. A Review of Biomass Briquette Binders and Quality Parameters. Energies. (2022). Vol. 15(7): 2426. DOI: 10.3390/en15072426
12. Urbanovičová O., Krištof K., Findura P., Jobbágy J., Angelovič M. Physical and Mechanical Properties of Briquettes Produced from Energy Plants. Acta Univ. Agric. Silvic. Mendel. Brun., (2017). Vol. 65(1): 219–224. DOI: 10.11118/actaun201765010219
13. Dragusanu V, Lunguleasa A, Spirchez C. Evaluation of the Physical, Mechanical, and Calorific Properties of Briquettes with or without a Hollow Made of Wheat (Triticum aestivum L.) Straw Waste. Applied Sciences, (2022). Vol. 12(23): 11936. DOI: 10.3390/app122311936
14. Ajimotokan H. A., Ibitoye S. E., Odusote J. K., Adesoye O. A., Omoniyi P. O. Physico-mechanical Properties of Composite Briquettes from Corncob and Rice Husk. Journal of Bioresources and Bioproducts, (2019). Vol. 4 (3): 159–165. DOI: 10.12162/jbb.v4i3.004
15. Wang J, Wang B, Liu J, Ni L, Li J. Effect of Hot-Pressing Temperature on Characteristics of Straw-Based Binderless Fiberboards with Pulping Effluent. Materials, (2019). Vol. 12(6): 922. DOI: 10.3390/ma12060922
16. Ivanchuk Ya. V., Iskovych-Lototskyi R. D., Dobrovolska K. V., Zamkovyi O. D., Pavlovich R. I. Mathematical modeling of the stressed state of the soil environment. Visnyk VPI. (2022). Issue 1, pp. 103–111. DOI: https://doi.org/10.31649/1997-9266-2022-160-1-103-111. [in Ukranian].
About 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:
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/
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.
