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  4. Design of a Refrigerant Leak Sensor based on the Photoacoustic Dual-Chamber Detection Method
 
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2025
Conference Paper
Title

Design of a Refrigerant Leak Sensor based on the Photoacoustic Dual-Chamber Detection Method

Abstract
We present a concept for the development of a dual-chamber photoacoustic sensor for refrigerant leak detection using R227ea as an example. Photoacoustic detection allows a very compact sensor with high sensitivity and selectivity to be realized. The simulations presented in this paper demonstrate that the sensor can cover the concentration range of 0-5000 ppm R227ea, with a limit of detection (LOD) of approximately 20 ppm R227ea.
Author(s)
Yassine, Hassan
University of Freiburg
Weber, Christian  orcid-logo
Fraunhofer-Institut für Physikalische Messtechnik IPM  
El-Safoury, Mahmoud  
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Brugger, Nicolas
University of Freiburg
Schmitt, Katrin  
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Wöllenstein, Jürgen  
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Mainwork
SMSI 2025, Sensor and Measurement Science International  
Conference
Conference "Sensor and Measurement Science International" 2025  
DOI
10.5162/SMSI2025/C7.2
Language
English
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Keyword(s)
  • Refrigerants

  • R227ea

  • Dual-chamber photoacoustic detection method

  • Simulations

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