C7.2 - Design of a Refrigerant Leak Sensor based on the Photoacoustic Dual Chamber Detection Method
- Event
- SMSI 2025
2025-05-06 - 2025-05-08
Nürnberg - Band
- Lectures
- Chapter
- C7 - Gas Sensing III
- Author(s)
- H. Yassine, C. Weber, N. Brugger, K. Schmitt, J. Wöllenstein - University of Freiburg, Freiburg (Germany), M. El-Safoury - Fraunhofer IPM, Freiburg (Germany)
- Pages
- 175 - 176
- DOI
- 10.5162/SMSI2025/C7.2
- ISBN
- 978-3-910600-06-5
- Price
- free
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.