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Research on the Identification of Some Optimal Threshing and Separation Regimes in the Axial Flow Apparatus

Author

Listed:
  • 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)

Abstract

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 ( p ev ) depend on threshing rotor speed ( n ) and implicit rotor peripheral speed ( v p ), material feed speed ( v a ), 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: v p , Q , ρ , and v a , respectively, for the minimization of losses by the variation of the loss function by two arguments each (represented graphically); the four arguments targeted being: v p , v a , 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 ( S s ) as close as possible to 100% (and implicitly the smallest threshing losses—towards zero) in relation to these parameters.

Suggested Citation

  • 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 & , 2023. "Research on the Identification of Some Optimal Threshing and Separation Regimes in the Axial Flow Apparatus," Agriculture, MDPI, vol. 13(4), pages 1-17, April.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:4:p:838-:d:1118380
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    References listed on IDEAS

    as
    1. Mohamed Anwer Abdeen & Abouelnadar Elsayed Salem & Guozhong Zhang, 2021. "Longitudinal Axial Flow Rice Thresher Performance Optimization Using the Taguchi Technique," Agriculture, MDPI, vol. 11(2), pages 1-14, January.
    2. Nicolae-Valentin Vlăduț & Sorin-Ştefan Biriş & Petru Cârdei & Iuliana Găgeanu & Dan Cujbescu & Nicoleta Ungureanu & Lorena-Diana Popa & Lucian Perişoară & Gheorghe Matei & Gabriel-Ciprian Teliban, 2022. "Contributions to the Mathematical Modeling of the Threshing and Separation Process in An Axial Flow Combine," Agriculture, MDPI, vol. 12(10), pages 1-21, September.
    3. Ranbing Yang & Zhichao Wang & Shuqi Shang & Jian Zhang & Yiren Qing & Xiantao Zha, 2022. "The Design and Experimentation of EVPIVS-PID Harvesters’ Header Height Control System Based on Sensor Ground Profiling Monitoring," Agriculture, MDPI, vol. 12(2), pages 1-24, February.
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