Pulsed Corona Charging Characteristics of Aqueous Pesticide Spray

펄스 코로나 농약산포장치의 분무대전 특성

  • 문재덕 (경북대 전기공학과) ;
  • 이운태 (경북대 전기공학과) ;
  • 배창환 (경북대 전기공학과) ;
  • 권남열 (경북대 전기공학과)
  • Published : 2003.09.01

Abstract

Many toxic pesticides as aqueous-base sprays are dispensed for protection of food crops from pests into farm fields. When dispensed with conventional nozzles, a large portion of the spray is often lost by airborne drifts of droplets away and lack of deposition onto the plants due to rapid gravitational settling of droplets to the soil beneath. And target deposition efficiencies poorer than 20% are often encountered in agricultural pesticides. An electrostatic spraying technology offers a very favorable means to increasing pesticides droplets deposition onto biological surfaces of living crops. In this paper a corona type spray nozzle, utilizing a set of corona charging devices and a pulsed droplet-charging voltage applied, has been proposed and tested its potential experimentally. As a result, it exhibits a large current deposition of aqueous pesticide sprays on the sensing target, which, however, promise to be as one of the effective electrostatic spraying nozzle.

Keywords

agricultural pesticide;corona type spray;droplet deposition;pulsed corona;droplet charging

References

  1. J. Moon, D. Lee, T. Kang and K. Yon, 'A Capacitive Type of Electrostatic Spraying Nozzle', Journal of Electrostatics, 57, 3-4(2003), 363-379 https://doi.org/10.1016/S0304-3886(02)00173-0
  2. I. I. Inculet and J. K. Fischer, Electrostatic Spraying, IEEE Trans. on IA, IA-25, 3 (1989) 558-562 https://doi.org/10.1109/28.31229
  3. S. E. Law, Embedded-Electrode Electrostatic Induction Spray-Charging Nozzle: Theoretical and Engineering Design, Trans. of ASAE, 76 (1976) 1502
  4. 梅津勇: 農藥散布と靜電氣, 靜電氣學會誌, 22, 1 (1998) 6-11
  5. 日本靜電氣學會編, 靜電氣ハンドブック, 304-305 (1981)
  6. 日本靜電氣學會編, 靜電氣ハンドブック, 571-574, (1981)
  7. S. Edward Law and S.C. Cooper, Electrostatic Induction Spray-Charging Nozzle System, US Patent #5, 765, 761 (June 1998)
  8. S. Edward Law, Electrostatic Pesticide Spraying: Concepts and Practice, IEEE Trans. on IA, IA-19, 2 (1983) 160-168
  9. 이동현, 과수용 정전대전 농약살포시스템 개발, 농림부 (2002. 12)
  10. E. Franz, D. L. Reichard, T. G. Carpenter and R. D. Brazee, Deposition and Effectiveness of Charged Sprays for Pest Control, Trans. of the ASAE, 30, 1 (1987) 50-55 https://doi.org/10.13031/2013.30400
  11. Journal of Electrostatics v.57 no.3-4 A Capacitive Type of Electrostatic Spraying Nozzle J.Moon;D.Lee;T.Kang;K.Yon https://doi.org/10.1016/S0304-3886(02)00173-0