
Case study: Experimental characterization of noise and vibration sources in a refrigerator
The sources of noise and vibration of a refrigerator are characterized by means of laboratory measurements. Three different elements are considered: compressor, evaporator fan, and condenser fan. Both the radiated acoustic energy and the mechanical power injected to the refrigerator
structure are measured. Acoustic intensity maps on the refrigerator faces at different frequencies are also provided They are helpful in visualizing the more problematic zones in terms of noise emis- sion. The devices are tested in vacuo or working inside the refrigerator. The provided information
can be used as input data for vibroacoustic simulation models such as statistical energy analysis. It is also of interest in order to improve the refrigerator acoustic design.
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Document Type: Research Article
Affiliations: 1: Unidad de Alta Tecnología, Facultad de Ingeniería, Universidad Nacional Autónoma de México 2: Laboratori de Càlcul Numèric, E.T.S. d'Enginyeria de Cam in s, Canals i Ports de Barcelona, Universitat Politècnica de Catalunya 3: Department of applied physics, Mabe TyP
Publication date: 01 November 2021
NCEJ is the pre-eminent academic journal of noise control. It is the Journal of the Institute of Noise Control Engineering of the USA. Since 1973 NCEJ has served as the primary source for noise control researchers, students, and consultants.
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