Development of a charge transfer space loop to improve adsorption performance in aerial electrostatic spray
Keywords:
aerial electrostatic spray, electrostatic adsorption, charge transfer loop, back deposition, droplet, developmentAbstract
In order to solve the problem of insufficient adsorption rate of droplets on the target back via aerial electrostatic spray, this study proposed a high-voltage electrostatic generator to charge the liquids in two isolated water tanks with positive and negative charges respectively. A charge transfer loop was developed in space between the aerial electrostatic spray system and the ground. This method greatly enhanced the adsorption performance under outdoor conditions that 16.7% droplets density increased on the target front, a nearly fourfold destiny increased on the target back compared with the conventional UAV spray system. The target back-to-front ratio of droplet density was improved from 6.1% to 25.7%, which validated the satisfactory performance of the developed system. Keywords: aerial electrostatic spray, electrostatic adsorption, charge transfer loop, back deposition, droplet, development DOI: 10.25165/j.ijabe.20201305.5531 Citation: Zhao D N, Lan Y B, Shen W G, Wang S Z, Dixit A. Development of a charge transfer space loop to improve adsorption performance in aerial electrostatic spray. Int J Agric & Biol Eng, 2020; 13(5): 50–55.References
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[10] Lan Y B, Chen S D, Fritz B K. Current status and future trends of precision agricultural aviation technologies. Int J Agric & Biol Eng, 2017; 10(3): 1–17.
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[14] Ru Y. Research on aerial pesticide electrostatic spraying system and its application. PhD dissertation. Nanjing Forestry University, 2009; 132p. (in Chinese)
[15] Carlton J B, Bouse L F. Spray deposit sampling technique to evaluate electrostatic aerial spray-charging. Transactions of the ASAE, 1978; 21(1): 0002–0005.
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[19] Martin D E, López J D, Hoffmann W C, Fritz B K, Lan Y B. Field evaluation of spinosad aerial applications for thrips control on cotton. Southwestern Entomologist, 2007; 32(4): 221–228.
[20] Ru Y, Jin L, Jia Z C, Bao R, Qian X D. Design and experiment on electrostatic spraying system for unmanned aerial vehicle. Transactions of the CSAE, 2015; 31(8): 50–55. (in Chinese)
[21] Zhang Y L, Lian Q, Zhang W. Design and test of a six-rotor unmanned aerial vehicle (UAV) electrostatic spraying system for crop protection. Int J Agric & Biol Eng, 2017; 10(6): 68–76.
[22] Zhou H P, Ru Y, Shu C R, Zheng J Q, Zhu H P. Design and experimental research of aerial electrostatic spray system applied to helicopter. In: The 2nd China Forestry Academic Conference, 2009; pp.30–37. doi: 10.13031/2013.27246. (in Chinese)
[23] Zhou H P, Ru Y, Shu C R, Jia Z C. Improvement and experiment of aerial electrostatic spray device. Transactions of the CSAE, 2012; 28(12): 7–12. (in Chinese)
[24] Law S E. Embeded-electrode electrostatic-induction spray charging nozzle: theoretical and engineering design. Transaction of ASAE, 1978; 21(6): 1096–1104.
[25] Patel M K, Praveen B, Sahoo H K, Patel B, Kumar A, Singh M, et al. An advance air-induced air-assisted electrostatic nozzle with enhanced performance. Computers & Electronics in Agriculture, 2017; 127: 280–288.
[26] Davies E. Action potentials as multifunctional signals in plants: a unifying hypothesis to explain apparently disparate wound responses. Plant Cell & Environment, 1987; 10(8): 623–631.
[27] Yu D Y, Xian F S, Gao L R. Preliminary research on effect of charge plant on ultra-low-volume electrostatic spraying. Journal of Jiangsu University (National Science Edition), 1985; 1: 14–24. (in Chinese)
[2] Patel K M. Technological improvements in electrostatic spraying and its impact to agriculture during the last decade and future research perspectives-A review. Engineering in Agriculture, Environment and Food, 2016; 9(1): 92–100.
[3] Law S E. Agricultural electrostatic spray application: a review of significant research and development during the 20th century. Journal of Electrostatics, 2001; 51-52: 25–42.
[4] Lan Y B, Zhang H Y, Wen S, Li S H. Analysis and experiment on atomization characteristics and spray deposition of electrostatic nozzle. Transactions of the CSAM, 2018; 49(4): 130–139. (in Chinese)
[5] Singh M, Ghanshyam C, Mishra P K, Chak R. Current status of electrostatic spraying technology for efficient crop protection. AMA-Agricultural Mechanization in Asia Africa and Latin America, 2013; 44(2): 46–53.
[6] Wang Z T, Zhang Y H, Guo T Y, Zhu Z H, Wang X Y, Wen J L. Experimental study on size and velocity of charged droplets. Procedia Engineering, 2015; 126: 522–526.
[7] Zhu H P, Xian F S, Gao L R. Summary of research on electrostatic spraying technique theory and its applications. Transactions of the CSAM, 1989; 2: 53–59. (in Chinese)
[8] Lan Y B, Thomson S J, Huang Y B, Hoffmann W C, Zhang H H. Current status and future directions of precision aerial application for site-specific crop management in the USA. Computers & Electronics in Agriculture, 2010; 74(1): 34–38.
[9] Xue X Y, Lan Y B. Agricultural aviation applications in USA. Transactions of the Chinese Society of Agricultural Machinery, 2013; 44(5): 194–201. (in Chinese)
[10] Lan Y B, Chen S D, Fritz B K. Current status and future trends of precision agricultural aviation technologies. Int J Agric & Biol Eng, 2017; 10(3): 1–17.
[11] Thomson S J, Smith L A, Hanks J E. Evaluation of application accuracy and performance of a hydraulically operated variable-rate aerial application system. Transactions of the ASABE, 2009; 52(3): 715–722.
[12] Inculet I I, Fischer J K. Electrostatic aerial spraying. IEEE Transactions on Industry Applications, 1989; 25(3): 558–562.
[13] Zhang Y L, Lan Y B, Bradley K F, Xue X Y. Development of aerial electrostatic spraying systems in the United States and applications in China. Transactions of the CSAE, 2016; 32(10): 1–7. (in Chinese)
[14] Ru Y. Research on aerial pesticide electrostatic spraying system and its application. PhD dissertation. Nanjing Forestry University, 2009; 132p. (in Chinese)
[15] Carlton J B, Bouse L F. Spray deposit sampling technique to evaluate electrostatic aerial spray-charging. Transactions of the ASAE, 1978; 21(1): 0002–0005.
[16] Kirk I W, Harp S J, Wiese A M. Aerial sprays of fipronil for control of boll weevil. In: 2000 Proceedings Cotton Conferences Volume 2, San Antonio, 2000; pp.1281–1283.
[17] Latheef M A, Carlton J B, Kirk I W, Hoffmann W C. Aerial electrostatic-charged sprays for deposition and efficacy against sweet potato whitefly (Bemisia tabaci) on cotton. Pest Management Science, 2009; 65(7): 744–752.
[18] Carlton J B. Technique to reduce chemical usage and concomitant drift from aerial sprays. Patent of the United States, 5975425.1999-11-02.
[19] Martin D E, López J D, Hoffmann W C, Fritz B K, Lan Y B. Field evaluation of spinosad aerial applications for thrips control on cotton. Southwestern Entomologist, 2007; 32(4): 221–228.
[20] Ru Y, Jin L, Jia Z C, Bao R, Qian X D. Design and experiment on electrostatic spraying system for unmanned aerial vehicle. Transactions of the CSAE, 2015; 31(8): 50–55. (in Chinese)
[21] Zhang Y L, Lian Q, Zhang W. Design and test of a six-rotor unmanned aerial vehicle (UAV) electrostatic spraying system for crop protection. Int J Agric & Biol Eng, 2017; 10(6): 68–76.
[22] Zhou H P, Ru Y, Shu C R, Zheng J Q, Zhu H P. Design and experimental research of aerial electrostatic spray system applied to helicopter. In: The 2nd China Forestry Academic Conference, 2009; pp.30–37. doi: 10.13031/2013.27246. (in Chinese)
[23] Zhou H P, Ru Y, Shu C R, Jia Z C. Improvement and experiment of aerial electrostatic spray device. Transactions of the CSAE, 2012; 28(12): 7–12. (in Chinese)
[24] Law S E. Embeded-electrode electrostatic-induction spray charging nozzle: theoretical and engineering design. Transaction of ASAE, 1978; 21(6): 1096–1104.
[25] Patel M K, Praveen B, Sahoo H K, Patel B, Kumar A, Singh M, et al. An advance air-induced air-assisted electrostatic nozzle with enhanced performance. Computers & Electronics in Agriculture, 2017; 127: 280–288.
[26] Davies E. Action potentials as multifunctional signals in plants: a unifying hypothesis to explain apparently disparate wound responses. Plant Cell & Environment, 1987; 10(8): 623–631.
[27] Yu D Y, Xian F S, Gao L R. Preliminary research on effect of charge plant on ultra-low-volume electrostatic spraying. Journal of Jiangsu University (National Science Edition), 1985; 1: 14–24. (in Chinese)
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2020-10-13
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Zhao, D., Lan, Y., Shen, W., Wang, S., & Dixit, A. (2020). Development of a charge transfer space loop to improve adsorption performance in aerial electrostatic spray. International Journal of Agricultural and Biological Engineering, 13(5), 50–55. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/5531
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