Open AccessCOGENERATION UNIT NOISE REDUCTION BY ITS CASE
Author(s) -
Radek Štramberský,
Vaclav Pavelka,
Tomáš Pawlenka,
PAVEL SURANEK,
Leszek Morzyński
Publication year - 2021
Publication title -
mm science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.195
H-Index - 10
eISSN - 1805-0476
pISSN - 1803-1269
DOI - 10.17973/mmsj.2021_6_2020070
Subject(s) - noise (video) , microphone array , microphone , beamforming , noise reduction , cogeneration , acoustics , reduction (mathematics) , computer science , sound power , measure (data warehouse) , power (physics) , telecommunications , mathematics , physics , sound (geography) , electricity generation , artificial intelligence , sound pressure , geometry , quantum mechanics , image (mathematics) , database
This paper deals with cogeneration unit noise measurement by the acoustic camera. Noise is not only measured as the final number of sound power levels, but also its original location is determined with the use of the beamforming algorithm. The properties of the used microphone array are considered and numerically calculated as every different microphone array layout will measure with another resolution. From the frequency spectrum, the possible technical source is determined. The results of noise source visualization show the cogeneration unit case noise decreasing effect while also offering the possibilities for design improvements.