P9 - Compact, Photoacoustic Gas Measuring System for Methane in Biogas Plants

Event
AMA Conferences 2013
2013-05-14 - 2013-05-16
Nürnberg
Band
Proceedings IRS² 2013
Chapter
IP - Poster Session
Author(s)
J. Huber - Fraunhofer Institute for Physical Measurement Techniques (IPM), Freiburg (Germany), A. Eberhardt, J. Wöllenstein - University of Freiburg, (Germany)
Pages
126 - 129
DOI
10.5162/irs2013/iP9
ISBN
978-3-9813484-3-9
Price
free

Abstract

We present a miniaturized photoacoustic gas measurement setup for methane in high concentrations. The system consists of an IR-source, a microphone as detection unit and a measuring chamber with gas connections. The system is able to detect methane concentrations of 0-100%, as they exist for example inside the reaction chamber of biogas plants. Simulations with parameter variations are done to evaluate experimental results. Measurements and simulations show similar behaviour. Different measurement ranges have been regarded. The system presented here can be easily integrated in process environment due to its small size. The isolated setup allows to measure flammable IR-active gases.

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