Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Assessment on the Crack Growth of High Temperature Header at Boiler

보일러 고온부 헤더의 균열수명 평가

  • 김건영 (한전기술연구원 전력연구실) ;
  • 송기욱 (한전기술연구원 전력연구실)
  • Published : 1995.06.01
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Abstract

발전 Plant는 고온.고압하에서 장기간 사용되며 파손발생시는 대형 사고로 확대되므로 경년에 따 른 운용기술의 확보가 현안 과제이다. 즉, 현재의 설비를 그대로 사용할 것인가 \ulcorner 또는 교체하여 야 할 것인가\ulcorner 그대로 사용한다면 취약부위는 어디이며 언제 보수하여야 하는가 \ulcorner 또 교체한다 면 그 시기는 언제인가 \ulcorner 에 대한 기술적 예측이 필요하다 수명예측기술은 이러한 의문에 대한 해답을 주는 Plant 설비 운용기술중 가장 최신 기술분야의 하나이다. 본고에서는 보일러 부분중 가장 사용조건이 가혹하고 교체하는데 많은 비용과 시간이 소용되는 최종과열기를 대상으로 균열 전파에 의한 수명예측에 관하여 기술코자 한다.

Keywords

References

  1. Damage Mechanisms and Life Assessment of High-Temperature Components R.Viswanathan
  2. EPRI CS-4688 Project 2253-7 Remaining Life Estimation of Boiler Pressure Parts-Crack Growth Studies EPRI
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