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Updated: May 18, 2026

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions
Published on: June 12, 2016
Volume flow calculations on gas leaks imaged with infrared gas-correlation
Jonas Sandsten1, Martin Andersson
1Department of Physics, Lund Institute of Technology, P.O. Box 18, SE-221 00 Lund, Sweden. jonas.sandsten@insatnet.nu
Abstract:
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.
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