Thermal stratification can occur when hot and cold fluids mix inside the pipeline of nuclear power plant, which can lead to temperature fluctuations with large amplitude and high frequency with time-varying wall heat stress and even induce thermal fatigue phenomenon. Therefore, how to accurately get temperature fluctuations of the inner wall without damaging the whole structure of the pipe system becomes the prime problem to be solved in the study of thermal fatigue. Base on energy conservation law, the non-iterative mathematic model of inverse heat conduction using the volume-control method has been developed in this paper for pipe in nuclear power plant. Numerical and experiment results show that the volume-control method can accurately catch the temperature fluctuation of different positions on the inner wall.
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2017 25th International Conference on Nuclear Engineering
July 2–6, 2017
Shanghai, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5779-3
PROCEEDINGS PAPER
Method for Measuring Temperature of Inner Wall Surface of Pipeline in Nuclear Power Plant
Ling Jun,
Ling Jun
China Nuclear Power Design Company Ltd, Shenzhen, China
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Wang Hai-jun,
Wang Hai-jun
Xi'an Jiaotong University, Xi’an, China
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Liu Lang,
Liu Lang
China Nuclear Power Design Company Ltd, Shenzhen, China
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Chen Tong,
Chen Tong
China Nuclear Power Design Company Ltd, Shenzhen, China
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Liu Hong-tao,
Liu Hong-tao
China Nuclear Power Design Company Ltd, Shenzhen, China
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He Da-yu
He Da-yu
China Nuclear Power Design Company Ltd, Shenzhen, China
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Ling Jun
China Nuclear Power Design Company Ltd, Shenzhen, China
Wang Hai-jun
Xi'an Jiaotong University, Xi’an, China
Liu Lang
China Nuclear Power Design Company Ltd, Shenzhen, China
Chen Tong
China Nuclear Power Design Company Ltd, Shenzhen, China
Liu Hong-tao
China Nuclear Power Design Company Ltd, Shenzhen, China
He Da-yu
China Nuclear Power Design Company Ltd, Shenzhen, China
Paper No:
ICONE25-67553, V001T01A041; 7 pages
Published Online:
October 17, 2017
Citation
Jun, L, Hai-jun, W, Lang, L, Tong, C, Hong-tao, L, & Da-yu, H. "Method for Measuring Temperature of Inner Wall Surface of Pipeline in Nuclear Power Plant." Proceedings of the 2017 25th International Conference on Nuclear Engineering. Shanghai, China. July 2–6, 2017. V001T01A041. ASME. https://doi.org/10.1115/ICONE25-67553
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