Detection of Hot Pipe Defects using IR Thermography

Kwae Hwan Yoo, Ju Hyun Kim, Man Gyun Na, Jin Weon Kim, Kyeong Suk Kim, Chang-Doo Kee

2013

Abstract

Wall-thinned defects, which are attributable to acceleration of corrosion that is occurred by fluid flow in the inner pipe, appear in various structures of the secondary system in nuclear power plants (NPPs), playing a role as a major factor to degrade integrity of pipes. It is required to manage wall-thinned defects not only when the NPP is under maintenance but also when the NPP is in normal operation. To this end, this paper developed a test technique to manage such wall-thinned defects based on temperature difference on surface of hot pipe with use of infrared thermography and cooling device. Finite element analysis (FEA) was conducted to examine tendency of and test conditions for cooling experiment. Based on the FEA results, equipment was configured before the cooling experiment was conducted. Then, infrared camera was used to detect defects in the inner pipe of the pipe specimen that had artificially induced defects. The infrared thermography developed in this study is expected to help resolve issues related to limitations on the nondestructive inspection that is currently conducted for NPP’s secondary system and expected to be very useful on the NPP site.

References

1. Frank, M., Hans, R. and Helmut, S., 2001. Experience with piping in German NPPs with Respect to AgeingRelated Aspects, Nuclear Engineering and Design, Vol. 207, No. 3, pp. 307-316.
2. G. Gaussorgurs, 1994. Infrared thermography Translated by S. Chomet, Champmam & Hall.London, pp. 415- 452.

Paper Citation

in Harvard Style

Hwan Yoo K., Hyun Kim J., Gyun Na M., Weon Kim J., Suk Kim K. and Kee C. (2013). Detection of Hot Pipe Defects using IR Thermography . In Proceedings of the 10th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO, ISBN 978-989-8565-70-9, pages 227-234. DOI: 10.5220/0004481602270234

in Bibtex Style

@conference{icinco13,
author={Kwae Hwan Yoo and Ju Hyun Kim and Man Gyun Na and Jin Weon Kim and Kyeong Suk Kim and Chang-Doo Kee},
title={Detection of Hot Pipe Defects using IR Thermography},
booktitle={Proceedings of the 10th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},
year={2013},
pages={227-234},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004481602270234},
isbn={978-989-8565-70-9},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 10th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,
TI - Detection of Hot Pipe Defects using IR Thermography
SN - 978-989-8565-70-9
AU - Hwan Yoo K.
AU - Hyun Kim J.
AU - Gyun Na M.
AU - Weon Kim J.
AU - Suk Kim K.
AU - Kee C.
PY - 2013
SP - 227
EP - 234
DO - 10.5220/0004481602270234