Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Improvement of the Heat Resistance Reliability of an Axial Smoke Exhaust Fan

배연용 축류팬의 내열 신뢰성 향상

  • Hur, Jin-Huek (Department of Mechanical Engineering, Graduate School of Hanyang University) ;
  • Heo, Ki-Moo (Acciona Energy Korea Inc.) ;
  • Moon, Seung-Jae (School of Mechanical Engineering, Hanyang University) ;
  • Lee, Jae-Heon (School of Mechanical Engineering, Hanyang University)
  • 허진혁 (한양대학교 대학원 기계공학과) ;
  • 허기무 ((주)악시오나 에너지 코리아) ;
  • 문승재 (한양대학교 공과대학 기계공학부) ;
  • 이재헌 (한양대학교 공과대학 기계공학부)
  • Published : 2009.12.10
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Abstract

In this paper, the heat resistance reliability of an axial smoke exhaust fan was investigated. An axial smoke exhaust fan should be capable of operating at $250^{\circ}C$ for 2 hours. The heat resistance reliability was evaluated by the heat resistance reliability test. A B10 life with a 90% confidence level was estimated to be about 48 minute. The failure occurred in the motor due to high temperature. The main failure mechanisms of the motor were melting of bond and insulating paper and burning of insulating materials in the coil. The heat resistance reliability was improved by changing the way to unite the core and the coil and by replacing the insulating paper and the insulating materials of the coil. A B10 life with a 90% confidence level of a modified axial smoke exhaust fan was estimated to be over 120 minute.

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References

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