Research on the Identification of Some Optimal Threshing and Separation Regimes in the Axial Flow Apparatus
Nicolae-Valentin Vlăduț,
Nicoleta Ungureanu,
Sorin-Ştefan Biriş,
Iulian Voicea,
Florin Nenciu,
Iuliana Găgeanu,
Dan Cujbescu,
Lorena-Diana Popa,
Sorin Boruz,
Gheorghe Matei,
Adam Ekielski,
Gabriel-Ciprian Teliban
Affiliations
Nicolae-Valentin Vlăduț
National Institute of Research—Development for Machines and Installations Designed for Agriculture and Food Industry—INMA Bucharest, 013811 Bucharest, Romania
Nicoleta Ungureanu
Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 006042 Bucharest, Romania
Sorin-Ştefan Biriş
Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 006042 Bucharest, Romania
Iulian Voicea
National Institute of Research—Development for Machines and Installations Designed for Agriculture and Food Industry—INMA Bucharest, 013811 Bucharest, Romania
Florin Nenciu
National Institute of Research—Development for Machines and Installations Designed for Agriculture and Food Industry—INMA Bucharest, 013811 Bucharest, Romania
Iuliana Găgeanu
National Institute of Research—Development for Machines and Installations Designed for Agriculture and Food Industry—INMA Bucharest, 013811 Bucharest, Romania
Dan Cujbescu
National Institute of Research—Development for Machines and Installations Designed for Agriculture and Food Industry—INMA Bucharest, 013811 Bucharest, Romania
Lorena-Diana Popa
Agricultural Research and Development Station Secuieni, 617415 Secuieni, Romania
Sorin Boruz
Faculty of Agronomy, University of Craiova, 200421 Craiova, Romania
Gheorghe Matei
Faculty of Agronomy, University of Craiova, 200421 Craiova, Romania
Adam Ekielski
Department of Production Management and Engineering, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
Gabriel-Ciprian Teliban
Department of Horticulture, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 700490 Iasi, Romania
Starting from the influencing parameters of threshing and separation and implicit seed losses that occur within this process, this paper searched for and identified the optimal threshing regimes to minimize losses depending on the process parameters. The evacuation losses (pev) depend on threshing rotor speed (n) and implicit rotor peripheral speed (vp), material feed speed (va), the space between the rotor and counter-rotor (δ), material feed flow (Q), material density (ρ), and the length of the threshing apparatus (L). As the parameters ρ and L are constant, the variation of losses in relation to each of the arguments was followed: vp, Q, ρ, and va, respectively, for the minimization of losses by the variation of the loss function by two arguments each (represented graphically); the four arguments targeted being: vp, va, ρ, and Q. Using these input parameters, it was possible to determine the optimal threshing regimes for the variation of losses in relation to the rotor peripheral speed, the feed flow, the space between the rotor and the counter-rotor, and the feed speed, so as to obtain a seed separation percentage (Ss) as close as possible to 100% (and implicitly the smallest threshing losses—towards zero) in relation to these parameters.
