한국원자력학회:학술대회논문집 (Proceedings of the Korean Nuclear Society Conference)
- 한국원자력학회 1995년도 추계학술발표회논문집(1)
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- Pages.364-370
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- 1995
Analysis on the Circumference Wall Temperature in a Long Horizontal Pipe with Thermal Stratification
- Ahn, Jang-Sun (Korea Atomic Energy Research Institute) ;
- Ko, Yong-Sang (Korea Atomic Energy Research Institute) ;
- Kim, Yu-Hwan (Korea Atomic Energy Research Institute) ;
- Park, Byeong-Ho (Korea Atomic Energy Research Institute) ;
- Kim, Eun-Kee (Korea Atomic Energy Research Institute)
- 발행 : 1995.10.01
초록
The One-dimensional fin model is used to analyze the angular wall temperature variation of long horizontal lines, where stratification could result in top-to-bottom differences in wall temperatures. The top and bottom sections are treated separately and coupled by boundary conditions. The thermal stratification analysis is focused on the effects of the heat transfer rates at the pipe surface. The results show that the heat transfer rate at the pipe surface is the controlling parameter which reduce significantly the temperature difference in pipe circumferential direction. The one-dimensional fin modelling analysis results are verified by comparison with the operating PWR test data. The circumferential temperatures of pipe calculated by one-dimensional fin modelling agree well with the PWR plant test data.
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