Experimental and Computational Study of the Formation of Composite Granular Fuel
Currently, the topical trend in the development of energy complexes in a number of countries is the expansion of the solid fuel use, which is largely provided by the use of various types of local renewable fuels. The latter often have high thermal properties (heat of combustion, ash content, etc.),...
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| Format: | Article |
| Language: | Russian |
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Belarusian National Technical University
2023-02-01
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| Series: | Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика |
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| Online Access: | https://energy.bntu.by/jour/article/view/2236 |
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| author | L. N. Ovchinnikov N. L. Ovchinnikov A. V. Mitrofanov S. V. Vasilevich S. V. Shpeynova |
| author_facet | L. N. Ovchinnikov N. L. Ovchinnikov A. V. Mitrofanov S. V. Vasilevich S. V. Shpeynova |
| author_sort | L. N. Ovchinnikov |
| collection | DOAJ |
| description | Currently, the topical trend in the development of energy complexes in a number of countries is the expansion of the solid fuel use, which is largely provided by the use of various types of local renewable fuels. The latter often have high thermal properties (heat of combustion, ash content, etc.), but have low or poorly predicted physical and mechanical characteristics (strength, granulometric composition, etc.). These circumstances practically make stable and efficient operation of automation systems, mechanization of transportation of pellets, and technological processes of boilers impossible. The formation of a composite fuel with specified physical and mechanical properties provides a solution to this problem. The structure of the composite fuel based on peat, sawdust, cellulose and modifier was established at the previous stages of our work. However, in case of a given composition, the physical and mechanical characteristics depend on the operating and technological conditions for obtaining granules. In this paper, a statistical and experimental study was carried out aimed at finding rational technological conditions for granulating and drying composite fuel particles with a given mass ratio of components. To prepare fuel pellets of a given size from the initial fine-fraction components, a laboratory installation was used, the main elements of which were a Z-shaped mixer, a screw granulator, and a fixed bed dryer. The influence of independent variables on the strength and final moisture content of finished pellets of composite fuel was determined within the framework of a full factor experiment. The paper presents graphical images of response surfaces characterizing the specified influence of variable factors. The obtained regression dependences describing the influence of factors on the target properties of granules are linear in nature. The latter limits the possibility of using gradient optimization methods and creates the need to search for rational conditions, taking into account the limitations caused by the technical and economic parameters of obtaining finished fuel pellets. |
| format | Article |
| id | doaj-art-294a9155f0024fd9ba666c970dc48767 |
| institution | Kabale University |
| issn | 1029-7448 2414-0341 |
| language | Russian |
| publishDate | 2023-02-01 |
| publisher | Belarusian National Technical University |
| record_format | Article |
| series | Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика |
| spelling | doaj-art-294a9155f0024fd9ba666c970dc487672025-02-03T11:34:18ZrusBelarusian National Technical UniversityИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика1029-74482414-03412023-02-016619110010.21122/1029-7448-2023-66-1-91-1001843Experimental and Computational Study of the Formation of Composite Granular FuelL. N. Ovchinnikov0N. L. Ovchinnikov1A. V. Mitrofanov2S. V. Vasilevich3S. V. Shpeynova4Ivanovo State University of Chemistry and TechnologyIvanovo State University of Chemistry and TechnologyIvanovo State Power Engineering UniversityBelarusian State Academy of AviationIvanovo State Power Engineering UniversityCurrently, the topical trend in the development of energy complexes in a number of countries is the expansion of the solid fuel use, which is largely provided by the use of various types of local renewable fuels. The latter often have high thermal properties (heat of combustion, ash content, etc.), but have low or poorly predicted physical and mechanical characteristics (strength, granulometric composition, etc.). These circumstances practically make stable and efficient operation of automation systems, mechanization of transportation of pellets, and technological processes of boilers impossible. The formation of a composite fuel with specified physical and mechanical properties provides a solution to this problem. The structure of the composite fuel based on peat, sawdust, cellulose and modifier was established at the previous stages of our work. However, in case of a given composition, the physical and mechanical characteristics depend on the operating and technological conditions for obtaining granules. In this paper, a statistical and experimental study was carried out aimed at finding rational technological conditions for granulating and drying composite fuel particles with a given mass ratio of components. To prepare fuel pellets of a given size from the initial fine-fraction components, a laboratory installation was used, the main elements of which were a Z-shaped mixer, a screw granulator, and a fixed bed dryer. The influence of independent variables on the strength and final moisture content of finished pellets of composite fuel was determined within the framework of a full factor experiment. The paper presents graphical images of response surfaces characterizing the specified influence of variable factors. The obtained regression dependences describing the influence of factors on the target properties of granules are linear in nature. The latter limits the possibility of using gradient optimization methods and creates the need to search for rational conditions, taking into account the limitations caused by the technical and economic parameters of obtaining finished fuel pellets.https://energy.bntu.by/jour/article/view/2236composite granular fuelpeatwoodworking wastedryingfull factor experiment |
| spellingShingle | L. N. Ovchinnikov N. L. Ovchinnikov A. V. Mitrofanov S. V. Vasilevich S. V. Shpeynova Experimental and Computational Study of the Formation of Composite Granular Fuel Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика composite granular fuel peat woodworking waste drying full factor experiment |
| title | Experimental and Computational Study of the Formation of Composite Granular Fuel |
| title_full | Experimental and Computational Study of the Formation of Composite Granular Fuel |
| title_fullStr | Experimental and Computational Study of the Formation of Composite Granular Fuel |
| title_full_unstemmed | Experimental and Computational Study of the Formation of Composite Granular Fuel |
| title_short | Experimental and Computational Study of the Formation of Composite Granular Fuel |
| title_sort | experimental and computational study of the formation of composite granular fuel |
| topic | composite granular fuel peat woodworking waste drying full factor experiment |
| url | https://energy.bntu.by/jour/article/view/2236 |
| work_keys_str_mv | AT lnovchinnikov experimentalandcomputationalstudyoftheformationofcompositegranularfuel AT nlovchinnikov experimentalandcomputationalstudyoftheformationofcompositegranularfuel AT avmitrofanov experimentalandcomputationalstudyoftheformationofcompositegranularfuel AT svvasilevich experimentalandcomputationalstudyoftheformationofcompositegranularfuel AT svshpeynova experimentalandcomputationalstudyoftheformationofcompositegranularfuel |