The Application of Similarity Theory and Dimensional Analysis to the Study of Centrifugal-Rotary Chopper of Forage Grain

Wacław Romaniuk, Petr Savinykh, Kinga Borek, Kamil Roman, Alexey Y. Isupov, Aleksandr Moshonkin, Grzegorz Wałowski and Michał Roman
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Wacław Romaniuk: Institute of Technology and Life Sciences—National Research Institute, Department of Rural Technical Infrastructure Systems, Warsaw Branch, Falenty, 3 Hrabska Avenue, 05-090 Raszyn, Poland
Petr Savinykh: Federal Agrarian Scientific Center of the North-East Them. N.V. Rudnitsky, GNU NIISH-SH North-East Scientific and Research Institute of Agriculture, 166a Lenin St., 610016 Kirov, Russia
Kinga Borek: Institute of Technology and Life Sciences—National Research Institute, Department of Rural Technical Infrastructure Systems, Warsaw Branch, Falenty, 3 Hrabska Avenue, 05-090 Raszyn, Poland
Kamil Roman: Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences, 166 Nowoursynowska St., 02-787 Warsaw, Poland
Alexey Y. Isupov: Federal Agrarian Scientific Center of the North-East Them. N.V. Rudnitsky, GNU NIISH-SH North-East Scientific and Research Institute of Agriculture, 166a Lenin St., 610016 Kirov, Russia
Aleksandr Moshonkin: Federal Agrarian Scientific Center of the North-East Them. N.V. Rudnitsky, GNU NIISH-SH North-East Scientific and Research Institute of Agriculture, 166a Lenin St., 610016 Kirov, Russia
Grzegorz Wałowski: Institute of Technology and Life Sciences—National Research Institute, Department of Renewable Energies, Branch in Poznan, Falenty, 3 Hrabska Avenue, 05-090 Raszyn, Poland
Michał Roman: Institute of Economics and Finance, Warsaw University of Life Sciences, 166 Nowoursynowska St., 02-787 Warsaw, Poland

Energies, 2021, vol. 14, issue 15, 1-12

Abstract: This article presents the device and the principle of operation of forage grain crushers that use the centrifugal force of inertia to supply the working bodies—which occurs as a result of rotation of the rotor with a vertical axis. The results of some tests of machines working on this principle have been characterized. Attention is drawn to the disadvantages of most research works, namely the lack of premises for creating shredders of this class with a wide range of performance. The aim of this work is to establish the relationship between the design and technological parameters for the operation of a centrifugal-rotary shredder using the theory of similarity and a dimensional analysis. Moreover, the experimental data show an empirical relationship when calculating the efficiency for the shredder model considered above. By applying the similarity criteria, dimensionless complexes were obtained, which allow to determine the significance of the parameters selected at the initial stage for the efficiency of the shredder. The novelty of this research is the application of the theory of similarity and the use of dimensional analysis, which allowed for scaling the results of the experimental data and obtaining a centrifugal-rotary shredder with higher efficiency, while maintaining the quality of the obtained product. This technique indicates the energy costs of the grinding process, which can be used to select the ratio of parameters in the shredder that would ensure that a minimum amount of energy is consumed.

Keywords: grain; hammer mill; shredder; disintegrator (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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