전동화된 스피드 스프레이어의 블레이드 형상에 따른 송풍구 유동 특성 분석 = Analysis of the Flow Characteristics for the Blower According to the Blade Shape of the Electrified Speed Sprayer

다국어 초록 (Multilingual 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 45º, 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.

참고문헌 (Reference)

1 오범석 ; 조재웅, "유체클러치 터빈 날개의 유형별 유동해석에 대한 융합연구" 한국융합학회 11 (11): 195-200, 2020

2 D. S. Jeong, "[Issue] Eco-friendly EURO-6 era is coming – Implications of Euro 6 environmental standards and diesel vehicles" (293) : 30-33, 2014

3 S. G. Kwon, "The new standard of domestic construction and agricultural equipments" 2020 : 24-26, 2020

4 Y. I. Park, "Technology for the agricultural hybrid tractor" 36 (36): 30-34, 2014

5 K. H. Lee, "Rotor dynamic analysis of brush seal according to various design parameters using 3D CFD" Gachon University 2019

6 H. Wen, "Mode interpretation of blade number effects on wake dynamics of smallscale horizontal axis wind turbine" 263 (263): 2022

7 C. G. Kim, "GHG emissions reduction and absorption increase in agriculture and rural areas" (293) : 1-19, 2021

8 S. H. Park, "A study on the introduction of next-generation emission standards for construction and agricultural machinery"

9 "A study on the introduction of next-generation emission standards for construction and agricultural machinery" Ministry of Agriculture Food and Rural Affairs 2021