Open AccessVolume flow calculations on gas leaks imaged with infrared gas-correlation
Author(s) -
Jonas Sandsten,
Martin Andersson
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.020318
Subject(s) - methane , volume (thermodynamics) , infrared , optics , flow (mathematics) , image processing , pixel , visualization , natural gas field , computer science , materials science , environmental science , natural gas , mechanics , physics , chemistry , computer vision , data mining , organic chemistry , quantum mechanics , image (mathematics)
Two methods for volume flow calculation from images of methane leakages to the atmosphere are presented. The images contain calibrated gas concentration × path length pixel information, and are processed with a block matching method and a theoretical velocity field method. Results from known methane flow in two laboratory setups and one unknown real leakage from a gas processing plant are compared with the image processing methods. The methods are generic and can be implemented in common infrared systems for gas visualization. This work provides a new tool for estimating and reporting volume flow emissions from gas processing plants to the authorities.