한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제63권5호
  • /
  • Pages.39-47
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  • 2021
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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풍동실험에 의한 붐식 살포 농약의 노즐형태와 분사압력에 따른 비산 특성 분석

Analyzing Drift Patterns of Spray Booms with Different Nozzle Types and Working Pressures in Wind Tunnel

  • Park, Jinseon (AgriBio Institute of Climate Change Management, Chonnam National University) ;
  • Lee, Se-Yeon (Department of Rural and Bio-systems Engineering, Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University) ;
  • Choi, Lak-Yeong (Department of Rural and Bio-systems Engineering, Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University) ;
  • Jeong, Hanna (Department of Rural and Bio-systems Engineering, Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University) ;
  • Noh, Hyun Ho (Residual Agrochemical Assessment Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Yu, Seung-Hwa (Department of Agricultural Engineering, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Song, Hosung (Department of Agricultural Engineering, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Hong, Se-woon (Department of Rural and Bio-systems Engineering, AgriBio Institute of Climate Change Management, Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University)
  • 투고 : 2021.08.30
  • 심사 : 2021.09.09
  • 발행 : 2021.09.30
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초록

With rising concerns about pesticide spray drifts, this study analyzed the drift patterns of two typically-used nozzles, XR nozzle and AI nozzle, concerning their working pressures and wind speeds by wind tunnel experiments. AI nozzle showed low drift potential with larger droplet sizes compared to XR nozzle. Airborne and deposition drifts of XR nozzle were two times higher than those of AI nozzle under high wind speeds (≥2 m s-1). In all cases, higher working pressures decreased the droplet sizes, thereby increasing the airborne and deposition drifts. Higher wind speeds also resulted in more airborne drifts, while ground deposition was increased under lower wind speeds. These effects of working pressures and wind speeds on the airborne and deposition drifts were observed at leeward distances less than 4 m from the nozzles. However, the airborne and deposition drifts were barely affected by the working pressures and wind speeds at leeward distances more than 11 m. The measurements were fitted to regression models of the drift curve with acceptable R2 values greater than 0.8, demonstrating that further studies will be useful to settle domestic issues of spray drifts.

키워드

과제정보

본 연구는 농촌진흥청 국립농업과학원 농업과학기술 연구개발사업 (과제번호: PJ0150532021)의 지원에 의해 수행되었으며, 이에 감사드립니다.

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