잔열제거계통 배관에서의 열성층 현상에 관한 연구

다국어 초록 (Multilingual Abstract)

Numerical study is carried out for thermal stratification on residual heat removal piping connected with<br/>
RCS piping of NPP. The turbulent penetration length reaches to 1^st isolation valve. Thermal stratification<br/>
mainly occurs in the horizontal piping connected with elbow. The maximum temperature difference occurs in<br/>
the location where horizontal piping starts passing elbow. The temperature difference between upper and<br/>
lower of horizontal piping changes with valve leak, curve radius of elbow, pipe thick and connection of hotleg<br/>
injection line. Thermal stratification effect in the backward of 1^st valve is small when piping thick is not<br/>
considered and when valve is isolated, but is large when piping thick is considered or when valve leaks.

목차 (Table of Contents)

• Abstract
  
• 1. 서론
  
• 2. 이론해석
  
• 3. 결과 및 고찰
  
• 4. 결론
  
• 참고문헌