NDLI: Development and application of guided wave technology for buried piping inspection in nuclear power plant

Content Provider	IEEE Xplore Digital Library
Author	Kuang-Chih Pei Hung-Fa Shyu Ping-Hung Lee Jean-Chung Toung
Copyright Year	2015
Description	Author affiliation: Nondestructive Testing Lab., Inst. of Nucl. Energy Res., Taoyuan, Taiwan (Kuang-Chih Pei; Hung-Fa Shyu) \|\| Taiwan Metal Quality Control Co., Kaohsiung, Taiwan (Ping-Hung Lee) \|\| Taiwan Power Co., Taiwan (Jean-Chung Toung)
Abstract	Guided wave (GW) technology, well used in petrochemical industries and academia for pipeline inspection, were studied to evaluate the integrity of buried pipes in nuclear power plant (NPP). Since GW inspection does not require direct access to the entire pipe surface and can be used to screen relatively large component areas from the probe location, this method can be developed to examine the inaccessible portions of pipeline, such as the buried pipes. However, the adhesion, due to soil pressure and anticorrosive coating, caused serious decay during GW propagation. Detection range and discrimination of GW inspection should be studied. In this research, a field experiment was conducted to verify and quantify the attenuation rate caused by coating, soil pressure and pipe size. The on-site inspection could offer not only the data but the uncertainty analysis for the pipeline surroundings. The profiles from a series of GW inspections on ten different pipes were compared and analyzed after an inter-pipe normalization. The test results indicate the relation between soil pressure and GW attenuation rate, so as the influence over decay by the coating/tape or the different GW operating frequencies. Moreover, a real on-site inspection was applied on a buried pipeline near NPP field. A successful GW evaluation was demonstrated.
Starting Page	1
Ending Page	4
File Size	1093467
Page Count	4
File Format	PDF
e-ISBN	9781479981823
DOI	10.1109/ULTSYM.2015.0080
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-21
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Soil Attenuation Inspection Pipelines Coatings Filling Probes soil pressure Guided wave inspection buried pipe
Content Type	Text
Resource Type	Article

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