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Conclusion.
1. Accelerated decomposition of droplets was observed when the working
fluid pressure in the hydraulic system
р=0,5 MPa
, the flow rate of the working fluid sprayed
from the rectifier is
q
с
=18,5 l/min
according to the optimal technological parameters of the
proposed turbulizer.
2. The use of a developed high-dispersion droplet-forming turbulizer reduced the
consumption of working fluid per hectare during the defoliation process by 13.1 % and labor
costs by 5.8 man-hours compared to a conventional spraying unit.
3. After 12 days of processing in the process of defoliation of cotton before machine
harvesting, the number of fallen leaves was 93% by conventional spraying, 90.8 % by open buds,
97% by shed leaves and 96.5 % by open buds when defoliated by experimental spraying. The
total annual economic efficiency per car during the season amounted to 11553067.8 soums.
Acknowledgements.
We are grateful to the “Tashkent Aggregate Plant”, “Agricultural
Mechanization Research Institute”, and “Boyjigit-Bobo” farm for their practical assistance in the
development of the experimental device, laboratory tests, and researches on the farm. These
researches have been carried out within the frame work of the scientific research work plan of
Mechanical Engineering
247
the departments of “Operation and maintenance of Machinery” TIIAME and the “Department of
ground transportation systems” TSTU (2018-2021).
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