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Jung, Im Doo
Intelligent Manufacturing and Materials Lab.
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Advanced thermal fluid leakage detection system with machine learning algorithm for pipe-in-pipe structure

Author(s)
Kim, HayeolLee, JewhanKim, TaekyeongPark, Seong JinKim, HyungmoJung, Im Doo
Issued Date
2023-02
DOI
10.1016/j.csite.2023.102747
URI
https://scholarworks.unist.ac.kr/handle/201301/62172
Citation
CASE STUDIES IN THERMAL ENGINEERING, v.42, pp.102747
Abstract
Pipe-in-pipe (PIP) system is essential for high thermal and high pressure fluid transportation. However, in the existing PIP systems, fluid leakage between inner and outer pipe has been difficult to discover or detect, which has worked as bottle neck to utilize PIP system in high risk industries as nuclear reactor, chemical plant or oil drilling systems. Here, we propose a noble PIP leakage detection system utilizing distributed temperature sensing (DTS) with Machine Learning (ML). With the Fourier transformed spectrogram data from DTS, the ML assisted system was able to detect 0.2 similar to 7 ml/min liquid leakage between inner and outer pipe with the accuracy of 91.67% with a single embedded optical fiber. Under varying operating temperature, the system successfully distinguished leakage and non-leakage states using the optimized convolutional neural network. Our developed PIP leakage detection system can be deployed in safety-critical industrial systems for autonomous leakage detection.
Publisher
ELSEVIER
ISSN
2214-157X
Keyword (Author)
Pipe-in-pipe systemHigh risk industryLeakage detectionDistributed temperature sensingMachine learning
Keyword
TEMPERATUREFLOW

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