Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Analysis of the Flow Characteristics for the Blower According to the Blade Shape of the Electrified Speed Sprayer

전동화된 스피드 스프레이어의 블레이드 형상에 따른 송풍구 유동 특성 분석

  • 오승훈 (공주대학교 기계공학과 대학원) ;
  • 심재록 (한아(주)) ;
  • 서현규 (공주대학교 기계자동차공학부)
  • Received : 2023.01.06
  • Accepted : 2023.02.09
  • Published : 2023.03.31
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Abstract

The objective of this numerical study is to investigate the effect of the shape and material of the blower blade for the electrified speed sprayer on the blowing performance. The shape of the blade was changed to the bonding angle, the number of blades, the width of the blade, and the blade length based on the existing model. In order to obtain the reliability of the numerical model, the analysis of the grid dependence was performed in the numerical analysis. The numerical analysis results were compared and analyzed in terms of the agricultural chemical penetration length characteristics, flow uniformity characteristics, and velocity distribution characteristics. Furthermore, the effect of material change on weight reduction and structural characteristics was also compared and analyzed. As a result of the analysis, it was found that the optimal condition was that the blade angle was 45°, the number of blades was 12, and the width was 115 mm, which was confirmed through a comparison of the inlet mass flow rate. As a result of the equivalent stress lower than the yield strength due to the material change from aluminum to steel compared to the existing steel, structural defects do not appear, and it is judged that the operation time compared to the battery capacity will be improved through the weight reduction of the blade.

Keywords

Acknowledgement

본 연구는 2022년 농림식품기술기획평가원 첨단농기계산업화기술개발사업(과제번호 : 322043-3)의 지원을 받아 수행 되었음.

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