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두 개의 셔터 구멍이 적용된 원심식 비료 살포기의 살포패턴 분석

Spray Pattern Analysis for a Centrifugal Fertilizer Distributor with Two Shutter Holes

  • 황석준 (강원대학교 바이오시스템기계공학과) ;
  • 박정현 (강원대학교 바이오시스템기계공학과) ;
  • 이주연 (강원대학교 바이오시스템기계공학과) ;
  • 김기덕 (강원대학교 바이오시스템기계공학과) ;
  • 신범수 (강원대학교 바이오시스템기계공학과) ;
  • 남주석 (강원대학교 바이오시스템기계공학과)
  • Hwang, Seok-Joon (Department of Biosystems Engineering, Kangwon National University) ;
  • Park, Jeong-Hyeon (Department of Biosystems Engineering, Kangwon National University) ;
  • Lee, Ju-Yeon (Department of Biosystems Engineering, Kangwon National University) ;
  • Kim, Ki-Duck (Department of Biosystems Engineering, Kangwon National University) ;
  • Shin, Beom-Soo (Department of Biosystems Engineering, Kangwon National University) ;
  • Nam, Ju-Seok (Department of Biosystems Engineering, Kangwon National University)
  • 투고 : 2019.07.22
  • 심사 : 2019.08.13
  • 발행 : 2019.10.30

초록

In this study, the spray pattern of a centrifugal fertilizer distributor with two shutter holes was analyzed and an effective driving width that satisfies proper spray uniformity was derived. The centrifugal fertilizer distributor was mounted on a tractor with a rated power of 23.7 kW and static and dynamic spray pattern tests were performed according to the standard procedure proposed by the American Society of Agricultural and Biological Engineers Standard ASAE S341.5. The height of the fertilizer distributor was 80 cm from the ground and the PTO (power take-off) shaft speed of the tractor was fixed at 540 rpm. The fertilizer scattered in space was collected using 275 evenly spaced collectors at shutter opening ratios of 25%, 50%, 75%, and 100%. The spray pattern was analyzed via the amount of sprayed fertilizer at each collector location and the coefficient of variation was used as an indicator of spray uniformity. Using the analyzed spray pattern, the effective driving width that satisfied less than 15% of the coefficient of variation was derived for different tractor driving patterns (race track mode, back and forth mode). From the results, spray uniformity increased as the shutter opening ratio decreased. The largest effective driving width was 8 m at a shutter opening ratio of 25% for both driving patterns.

키워드

참고문헌

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피인용 문헌

  1. DEM simulation model to optimise shutter hole position of a centrifugal fertiliser distributor for precise application vol.204, 2019, https://doi.org/10.1016/j.biosystemseng.2021.02.004