A novel leakage sensing system of hydrogen transportation pipeline based on hybrid UWFBG array

Yu Wang; Cong Liu; Ke Tang; Minghong Yang

doi:10.1117/12.3034676

20 November 2024 A novel leakage sensing system of hydrogen transportation pipeline based on hybrid UWFBG array

Yu Wang, Cong Liu, Ke Tang, Minghong Yang

Author Affiliations +

Proceedings Volume 13243, Advanced Sensor Systems and Applications XIV; 132430N (2024) https://doi.org/10.1117/12.3034676
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

In response to the intrinsic constraints of traditional single-parameter pipeline leakage detection, this paper proposes a hybrid ultra-weak fiber Bragg grating (UWFBG) array with alternating chirped and narrowband gratings of low reflectivity. The microporous Pt/WO₃ sensing material is combined with narrowband gratings to fabricate hydrogen sensors, while adjacent chirped gratings form vibration sensors. The demodulation system incorporates wavelength division multiplexing (WDM) to integrate homodyne coherent detection with tunable laser-based distributed wavelength demodulation, facilitating simultaneous monitoring of pipeline vibrations and ambient hydrogen concentration. This configuration enables multi-parameter sensing of hydrogen concentration and vibration in hydrogen transportation pipelines. Under constant pressure conditions, the experiment designed in the lab simulated hydrogen pipeline leaks with varying hole sizes, resulting in hydrogen accumulation around the leakage site. The hybrid UWFBG array was helically deployed along the pipeline. The findings revealed a quadratic correlation between the time-domain standard deviation of the leakage vibration signal and the leakage hole size, alongside a quartic relationship between the slope of wavelength shift and the leakage hole size. This validates the viability of utilizing the hybrid UWFBG array for leakage detection in hydrogen pipelines. Moreover, the integration of hydrogen concentration and vibration signals offers novel perspectives for subsequent leakage classification and localization.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yu Wang, Cong Liu, Ke Tang, and Minghong Yang "A novel leakage sensing system of hydrogen transportation pipeline based on hybrid UWFBG array", Proc. SPIE 13243, Advanced Sensor Systems and Applications XIV, 132430N (20 November 2024); https://doi.org/10.1117/12.3034676

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE