Reduction methods for ultra freezers noise emissions are here studied. The investigated freezer is the model “PLATINUM 750 V”, manufactured by Angelantoni Industrie S.p.a.. An intensity and a vibration measurements campaign has been led in order to individuate freezer noise characteristics. A sound pressure measurement campaign have been also carried out for low frequency noise components determination; a comparison has been made between power levels obtained by two measurement methods: intensity and pressure level measurements. Measurements results have shown that freezer fan and compressors are the main noise sources. Thus, some vibration and acoustic insulation solutions have been proposed and realized. Noise reduction solutions performances have been verified by a measurement campaign.

Experimental Investigation for Ultra Freezers Noise Reduction

COTANA, Franco;ROSSI, Federico;NICOLINI, ANDREA
2004

Abstract

Reduction methods for ultra freezers noise emissions are here studied. The investigated freezer is the model “PLATINUM 750 V”, manufactured by Angelantoni Industrie S.p.a.. An intensity and a vibration measurements campaign has been led in order to individuate freezer noise characteristics. A sound pressure measurement campaign have been also carried out for low frequency noise components determination; a comparison has been made between power levels obtained by two measurement methods: intensity and pressure level measurements. Measurements results have shown that freezer fan and compressors are the main noise sources. Thus, some vibration and acoustic insulation solutions have been proposed and realized. Noise reduction solutions performances have been verified by a measurement campaign.
9785732508161
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11391/22514
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