Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
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Design and Performance Test of Wide Blasting Nozzle for Curved Surface Cleaning based on Compressible Flow Analysis

압축성 유동해석에 기초한 곡면 세정을 위한 브라스팅 광폭 노즐의 설계 및 성능시험

  • Kim, Taehyung (Department of Aeronautical and Mechanical Engineering, Cheongju University) ;
  • Kwak, Jun Gu (Department of Aeronautical and Mechanical Engineering, Cheongju University) ;
  • Sohn, Myong Hwan (Department of Aeronautical and Mechanical Engineering, Cheongju University)
  • 김태형 (청주대학교 항공기계공학과) ;
  • 곽준구 (청주대학교 항공기계공학과) ;
  • 손명환 (청주대학교 항공기계공학과)
  • Received : 2019.02.01
  • Accepted : 2019.03.11
  • Published : 2019.03.29
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Abstract

In this study, the blasting nozzle for surface treatment of the curved surface of parts in power plant industry was designed and the cleaning performance was examined through the compressible flow analysis. At this time, the outlet of the curved nozzle was designed as a curved surface along the surface of the part. After the nozzle was made by 3-D printing, the abrasive was sprayed on the surface of the cylindrical specimen and the cleaning performance test was performed. The effective cleaning area obtained after the analysis was similar to the size and shape of the effective cleaning area obtained after the experiment. From this, the validity and effectiveness of the curved nozzle design was confirmed.

본 연구에서는 산업용 발전설비 부품의 곡면을 표면처리 하기 위한 브라스팅 노즐을 설계한 후 압축성 유동해석을 통해 분사 성능을 살펴보았다. 이때 곡면 노즐의 출구는 부품의 표면을 따라 곡면으로 설계되었다. 3차원 프린팅으로 노즐을 제작한 후 실린더형 시편의 표면에 연마재를 분사하여 세정 성능시험을 수행하였다. 해석 후 얻은 유효 세정 면적과 실험 후 얻은 유효 세정 면적의 크기와 형상이 유사하였으며 이로부터 곡면형 노즐 설계의 타당성 및 실효성을 확인하였다.

Keywords

References

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