Experimental Study of Air Leakages Using Three Different Ultrasonic Microphones

EasyChair Preprint 14561

Abstract

Compressed air serves as a valuable energy carrier, yet its production and preparation come with significant costs. During compression, a substantial amount of energy is dissipated as waste heat, while approximately 30 % is lost through leakage during distribution and utilization. Implementing a heat recovery system effectively addresses the waste heat issue, but identifying and quantifying leaks remains critical.
The primary obstacle lies in the fact that eliminating leaks necessitates reducing system pressure to zero, which is both expensive and feasible only if the benefits outweigh the costs. While ultrasonic microphones are commonly employed for leak detection, their reliability in quantifying leaks is compromised by indirect measurements and various factors affecting accuracy, such as noise, reflections, distance, and angle relative to the leak.
In this study, we utilize three distinct broadband microphones to assess leaks in standard geometries and compare their performance across different scenarios.

Keyphrases: Air compressor, Ultrasonic detection, air leakage, compressed air, quantification

@booklet{EasyChair:14561,
  author    = {Alireza Hojjati and Peter Radgen},
  title     = {Experimental Study of Air Leakages Using Three Different Ultrasonic Microphones},
  howpublished = {EasyChair Preprint 14561},
  year      = {EasyChair, 2024}}