TP54 - Low Cost Level Sensing for Receivers in Small Sized Refrigeration Systems with Natural Refrigerants
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Poster II
- Chapter
- Sensors for Automation and Industry
- Author(s)
- M. Neumayer, G. Pertiller, F. Eder, R. Rieberer - Graz University of Technology, Graz (Austria)
- Pages
- 464 - 465
- DOI
- 10.5162/EUROSENSORS2025/TP54
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
Natural refrigerants, such as porpane (R₂₉₀), are increasingly being used in refrigeration systemsand heat pumps due to their positive environmental properties in comparison to other refrigerants. This appliesin particular to small refrigeration systems. Due to the flammability potential, sensors that monitor the refrigerantcharge are of interest. In this work we study the feasibility of low cost level switch using ultra sound transducers.The detection of the refrigerant is based on a de-tuning effect, which allows a low cost implementation.