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

Yassine, HassanHassanYassineWeber, ChristianChristianWeberEl-Safoury, MahmoudMahmoudEl-SafouryBrugger, NicolasNicolasBruggerSchmitt, KatrinKatrinSchmittWöllenstein, JürgenJürgenWöllenstein2025-06-172025-06-172025https://publica.fraunhofer.de/handle/publica/48872710.5162/SMSI2025/C7.2We 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.enRefrigerantsR227eaDual-chamber photoacoustic detection methodSimulationsDesign of a Refrigerant Leak Sensor based on the Photoacoustic Dual-Chamber Detection Methodconference paper