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Optimizing Efficiency of Tea Harvester Leaf-Collection Pipeline: Numerical Simulation and Experimental Validation

Author

Listed:
  • Zhe Du

    (College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China)

  • Liyuan Zhang

    (College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China)

  • Xinping Li

    (College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China)

  • Xin Jin

    (College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China
    Science & Technology Innovation Center for Completed Set Equipment, Longmen Laboratory, Luoyang 471000, China)

  • Fan Yu

    (Library, Henan University of Science and Technology, Luoyang 471003, China)

Abstract

To address the challenges of missed and disorderly picking in tea harvesters, this study focused on the leaf-collection pipeline and utilized Fluent simulation 19.0 software. A single-factor test identified key parameters affecting airflow velocity. An orthogonal test evaluated the main pipe taper, number of branch pipes, and branch pipe outlet diameter, with average outlet wind speed and wind speed non-uniformity as indicators. The optimal parameters were a main pipe taper of 25.5 mm, 10 branch pipes, and an inner diameter of 17.10 mm for the outlet, resulting in 10.73 m/s average wind speed and 8.24% non-uniformity. Validation tests showed errors under 1%. Further optimization on the internal structure’s extension length led to 11.02 m/s average wind speed and 8.04% non-uniformity. Field experiments demonstrated a 3.40% stalk leakage rate and 90.36% bud leaf integrity rate; the optimized structure of the leaf-collecting pipeline significantly improved the uniformity of airflow and the picking efficiency. These findings offer valuable insights and practical benefits for enhancing the efficiency of tea harvesters.

Suggested Citation

  • Zhe Du & Liyuan Zhang & Xinping Li & Xin Jin & Fan Yu, 2024. "Optimizing Efficiency of Tea Harvester Leaf-Collection Pipeline: Numerical Simulation and Experimental Validation," Agriculture, MDPI, vol. 14(5), pages 1-16, April.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:5:p:653-:d:1381215
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    References listed on IDEAS

    as
    1. Xiaoxing Weng & Dapeng Tan & Gang Wang & Changqing Chen & Lianyou Zheng & Mingan Yuan & Duojiao Li & Bin Chen & Li Jiang & Xinrong Hu, 2023. "CFD Simulation and Optimization of the Leaf Collecting Mechanism for the Riding-Type Tea Plucking Machine," Agriculture, MDPI, vol. 13(5), pages 1-21, April.
    2. Qingzhen Zhu & Hengyuan Zhang & Zhihao Zhu & Yuanyuan Gao & Liping Chen, 2022. "Structural Design and Simulation of Pneumatic Conveying Line for a Paddy Side-Deep Fertilisation System," Agriculture, MDPI, vol. 12(6), pages 1-15, June.
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