Publicou 12 edições por ano
ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684
Indexed in
AIRSPEED AND ORIFICE SIZE AFFECT SPRAY DROPLET SPECTRA FROM AN AERIAL ELECTROSTATIC NOZZLE FOR ROTARY-WING APPLICATIONS
RESUMO
The aerial electrostatic spraying system patented by the U.S. Department of Agriculture−Agricultural Research Service (USDA-ARS) is a unique aerial application system that inductively charges spray droplets for the purpose of increasing deposition and efficacy. While this system has many potential benefits, no published data exist that describe how changes in airspeed or nozzle orifice size affect the droplet spectra of charged sprays at rotary-wing airspeeds. This study quantified these effects in a controlled wind tunnel at airspeeds from 80 to 177 km/h. These tests were conducted at the USDA-ARS Aerial Application Technology research facilities in College Station, Texas. Laser diffraction data showed that increases in airspeed generally produced smaller spray droplets for all nozzle orifices tested, as quantified by standard spray droplet parameters. Generally, a decrease in nozzle orifice size increased the fineness of the spray droplet spectra at all airspeeds but also increased the charge-to-mass ratio of the spray, which can improve spray deposition. The results from this study will help aerial applicators better understand how changes in rotary-wing airspeeds and nozzle orifice size affect droplet size from aerial electrostatic nozzles.
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Chen Shengde, Lan Yubin, Zhou Zhiyan, Ouyang Fan, Wang Guobin, Huang Xiaoyu, Deng Xiaoling, Cheng Shengnan, Effect of Droplet Size Parameters on Droplet Deposition and Drift of Aerial Spraying by Using Plant Protection UAV, Agronomy, 10, 2, 2020. Crossref
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Liang Zhao, Ding Hao, Wang Guangming, Zhang Xiaohui, Effect of Electrostatic Spraying Conditions on Droplet Deposition in Different Depth Areas on the Back of Target, Transactions on Electrical and Electronic Materials, 21, 2, 2020. Crossref
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Chen Jiaping, Wang Yanwei, Cao Tizhi, Research on Pesticide Fog Droplet Drift Detection Applied in UAV, in Communications, Signal Processing, and Systems, 878, 2022. Crossref
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Martin Daniel E., Latheef Mohamed A., Duke Sara E., Gap optimization of electrostatic aerial spray nozzles for low-speed aircraft, Journal of Electrostatics, 117, 2022. Crossref
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Chen Jiaping, Wang Yanwei, Cao Tizhi, Research on Pesticide Fog Droplet Drift Detection Applied in UAV, in Communications, Signal Processing, and Systems, 879, 2022. Crossref
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Li Gen, Chen Liping, Li Longlong, Yi Tongchuan, Ding Chenchen, Wang Juan, Zhao Chunjiang, Zhang Ruirui, Modeling and Experimental Validation of the Atomization Efficiency of a Rotary Atomizer for Aerial Spraying, Agronomy, 12, 2, 2022. Crossref