Improve heat pump placement considering frequency resolved acoustic directivity data: creation of an open database

Résumé et principaux résultats

Communication présentée au Forum Acusticum Euronoise 2025 (Málaga, Espagne, 23-26 juin 2025) sur l'optimisation de l'implantation des pompes à chaleur grâce à une base de données ouverte intégrant des données de directivité acoustique résolues en fréquence.

Title:Improve heat pump placement considering frequency resolved acoustic directivity data: creation of an open database
Abstract: Heat pumps are becoming increasingly popular due to their efficiency, carbon neutrality and use of renewable energy resources. Air-to-water heat pumps are often chosen because of their low cost and ease of installation. However, optimal placement to minimise acoustic emissions is mandatory for a barrier-free deployment. At present, the assessment of noise propagation for outdoor units suffers
from a lack of information on the frequency content, and particularly the directivity of the sound source. During heat pump certification, standardised test procedures using the sound intensity measurement technique provide frequency-resolved partial sound power levels for the five different surfaces surrounding the heat pump. This gives the basic directivity information needed for optimised placement recommendations. In the framework of IEA HPT Annex 63, an anonymous database has been designed that combines dimensions, operating conditions and a generic description of each of the 5 sides (fan(s), heat exchanger, blind sides) with their corresponding frequency spectrums. Initially, about 30 heat pumps measured at CETIAT and AIT will be included in the database and a first exploitation will be presented. The database will be enriched by the authors during the year 2025 with the possibility of contributions from other interested laboratories during this period.

Thème

Acoustique générale et vibroacoustique

Mots-clés

Acoustique, Chaudières, Essais de matériel, Mesure de bruit, Pompes à chaleur, Qualité acoustique

Auteurs

BESSAC François