학술논문
Functionalized multi-walled carbon nanotube based sensors for distributed methane leak detection
Document Type
Conference
Author
Source
2015 IEEE SENSORS SENSORS, 2015 IEEE. :1-4 Nov, 2015
Subject
Language
Abstract
This paper presents a highly sensitive, energy efficient and low-cost distributed methane (CH 4 ) sensor system (DMSS) for continuous monitoring, detection and localization of CH 4 leaks in natural gas infrastructure such as transmission and distribution pipelines, wells, and production pads. The CH4 sensing element, a key component of the DMSS, consists of a metal oxide functionalized multi-walled carbon nanotube (MWCNT) mesh which, in comparison to existing literature, shows stronger relative resistance change while interacting with lower ppm concentreation of CH4. For the DMSS a Gaussian plume triangulation algorithm has been developed, which, given a geometric model of the surrounding environment, can precisely detect and localize a CH 4 leak as well as estimate its mass flow rate.