P02 - Experimental study of hydrogen pipeline leakage using rGO and Pd-NP decorated H2-Sensors
- Event
- 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024
2024-06-11 - 2024-06-12
Nürnberg - Band
- Poster
- Chapter
- Poster
- Author(s)
- H. Ngo - Hochschule für Technik und Wirtschaft Berlin,Berlin
- Pages
- 411 - 418
- DOI
- 10.5162/sensoren2024/P02
- ISBN
- 978-3-910600-01-0
- Price
- free
Abstract
The global interest in clean energy, such as hydrogen, spurred an interest in the use of the existing natural gas pipeline to transport hydrogen gas during the transition stage. However, leaks, which are the natural gas pipeline’s main faults, could cause problems not only to the safety or environment but also offset some of the benefits of the hydrogen-related economy. Therefore, it is paramount to monitor pipelines for early leak detection to lower the risk of explosion. In this work, the feasibility of using advanced H2 (Hydrogen) sensors for hydrogen pipeline leakage detections are conducted. An experiment was performed using rGO (reduced graphene oxide), rGO with Pd (Palladium) nanoparticle and rGO-Pd sputtering with the novel APSLD (Atmospheric Pressure Sputtering Layer Deposition) technology on IDE (Inter Digital Electrode) sensors attached to hydrogen flow rig. The relative response of the sensors to pipe leak size and H2 concentration was measured by alternatively varying the pipe leak size and H2/N2 ratio. It was observed that these sensors’ reaction to hydrogen gas could be used to detect hydrogen pipeline leakage. The rGO only sensor exhibited the highest relative response when it was exposed to H2 gas. However, rGO with Pd nanoparticle and rGO-Pd sputtering with the APSLD sensors have rapid response/recovery time, which could be related to catalytic effect of Pd. Therefore, early detection of hydrogen leakage would be possible using the opportunity offered by advanced H2 sensors, data collection and prognosis advancement.