Airflow basin structure numerical optimisation analysis and suction nozzle characteristics experimental study of vacuum-vibration tray precision seeder

Submitted: 15 October 2021
Accepted: 28 June 2022
Published: 11 July 2022
Abstract Views: 883
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The stable and uniformly distributed airflow field can effectively improve the seed suction effect and seed-carrying stability of the pneumatic seeder. With this end in view, this paper optimised the airflow basin structure of the vacuum-vibration tray precision seeder based on the computational fluid dynamics (CFD) simulation technology. The results show that the airflow field is relatively stable and well-distributed when the chamber height is 50 mm, and the outlet tube diameter is 65 mm. In addition, the thickness of the base plate with suction holes should be less than 5 mm, and the needle suction nozzle guide should be greater than 15 mm, according to the numerical analysis results. Based on the above study, the seeding characteristics of the needle-type suction nozzle and the plate-type suction nozzle were further explored to determine the type of nozzle more suitable for a rectangular sucker. Through various experimental designs, the significant influencing factors of the two suction nozzles, their appropriate working ranges, and the optimal combination of working parameters were determined in turn. The needle suction nozzle requires a lower suction height and less grain dispersion, according to the experimental results, while the plate suction nozzle is just the opposite; it allows a certain suction height to be maintained with the seeds and requires high dispersion of grain. In general, the plate suction nozzle can obtain better seeding performance and is a more favourable nozzle for the vacuum-vibration tray precision seeder.

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Citations

Bernardi C., Dib S., Girault V., Hecht F.F.M., Sayah T. 2018. Finite element methods for Darcy's problem coupled with the heat equation. Numers. Mathem. 2:315-48.
Du R., Liu Z., Jiao Y., Meng W. 2017. Flow field simulation test and optimization of plate of tray seeder[J]. J. Agric. Mechan. Res. 7:148-152.
Gaikwad B.B., Sirohi N.P.S. 2008. Design of a low-cost pneumatic seeder for nursery plug trays. Biosyst. Engine. 99:322-9.
Gao X., Zhang Z. 2016. The analysis and study on air flow field of air suction metering device for 2BQM-2 seeder. J. Agric. Mechan. Res. 38:66-70+88.
Gunst R.F., Myers R.H., Montgomery D.C. 1996. Response surface methodology: process and product optimization using designed experiments | Clc. Technometrics. 38:203-37.
Han Z., Wang G. 2016. Fundamental engineering fluid mechanics. J. Beijing Inst. Technol. pp. 71-97.
Hassan Y.S., Liao Q. 2014. Simulation of negative pressure behavior using different shapes and positions of pressure inlet and seed hole diameters using ANSYS-CFX to optimize the structure of a pneumatic metering device designed for wheat. Agric. Engine. Int. Cigr J. 16:122-33.
Krishnasreni S.P.T. 2004. Status and trend of farm mechanization in Thailand. Agric. Mechan. Asia Afr. Latin Am. 1:59-66.
Liao Y., Zheng J., Liao Q., Ding Y., Gao L. 2019. Design and experiment of positive and negative pressure combined tube - needle centralized seeding device for American ginseng. Trans. Chinese Society Agric. Machin. 050:46-57.
Liu C., Song J., Wang J., Wang C. 2010. Analysis of flow field simulation on vacuum seed-metering components of precision metering device with sucker. J. China Agric. Univ. 15:116-20.
Liu J., Wang Q., Li H., He J., Lu C., Wang C. 2020. Numerical analysis and experiment on pneumatic loss characteristic of pinhole-tube wheat uniform seeding mechanism. Trans. Chinese Soc. Agric. Machin. 51:36-44.
Liu Y., Zhao M., Liu F., Yang T., Zhang T., Li F. 2016. Simulation and optimization of working parameters of air suction metering device based on discrete element. Trans. Chinese Soc. Agric. Machin. 047:65-72.
Montgomery D.C. 2019. Design and analysis of experiments. Post and Telecommunications Press, pp. 349-354.
Tiw-An C., Gavino R., Gavino H., Lavarias J. 2020. Development of a seedling tray seeder for lettuce ( Lactuca sativa L.) production. E3S Web of Conf. 187:05002.
Versteeg H.K., Malalasekera W. 1995. An introduction to computational fluid dynamics: the finite volume method. New York: Wiley.
Wang F. 2004. Computational fluid dynamics analysis. Beijing: Tsinghua University Press.
Xia H., Li Z., Niu J., Lin X. 2008. Dynamic model for metering process for pneumatic roller-type vegetable seeder. Trans. CSAE 24:141-6.
Yasir S.H., Liao Q. 2014. Simulation of negative pressure behavior using different shapes and positions of pressure inlet and seed hole diameters using ANSYS-CFX to optimize the structure of a pneumatic metering device designed for wheat. Agric. Engine. Intern. Cigr J. 16:122-34.
Yazgi A., Degirmencioglu A. 2014. Measurement of seed spacing uniformity performance of a precision metering unit as function of the number of holes on vacuum plate. Measurement 56:128-35.
Zhao Z., Tian C., Wu Y., Huang H. 2018. Dynamic simulation of seed pick-up process and parameter optimization on vacuum plate seeder for rice. Trans. Chinese Soc. Agric. Engine. 34:38-44.
Zhao Z., Wang J., Liu L., Liu Z., Wang W. 2015. Advance research of tray precision sowing equipment. J. Agric. Mechan. Res. 000:1-5, 25.

How to Cite

Liao, C., Chen, J., Geng, F. and Tang, X. (2022) “Airflow basin structure numerical optimisation analysis and suction nozzle characteristics experimental study of vacuum-vibration tray precision seeder”, Journal of Agricultural Engineering, 53(4). doi: 10.4081/jae.2022.1294.