TY - CONF
T1 - Noise transmission from a small, hermetic, reciprocating compressor
AU - Cunsolo, John V.
AU - Brungart, Timothy A.
AU - Hambric, Stephen A.
N1 - Funding Information:
The authors would like to acknowledge the financial support provided by Bristol Compressors, LLC. and oversight provided by Mr. David Gilliam, Principal Engineer, Bristol Compressors International, LLC. The authors would also like to thank Mr. James J. Chatterly and Mr. Zachary W. Yoas for their assistance with the transmissibility and radiated noise testing. This work was performed under the Applied Research Laboratory Penn State sponsored research agreement number 24088.
Publisher Copyright:
© INTER-NOISE 2018 - 47th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering. All rights reserved.
PY - 2018
Y1 - 2018
N2 - In recent years, refrigerant compressor design has become increasingly focused on limiting noise emissions, as many of these units are installed in residential spaces. This paper aims to characterize the noise emitted from a small, hermetic, reciprocating compressor and identify the primary transmission path of noise from the compressor to its shell enclosure. Radiated sound power measurements show that the compressor projects noise that peaks at frequencies most sensitive to the human ear. Transmissibility measurements show that the compressor’s vibration isolation system becomes ineffective at high frequencies, as it is mounted to a non-rigid foundation. Measurements of transmissibility and radiated sound power of production line and rigidly-mounted units suggest that the mechanical transmission path dominates the shell excitation across the frequency spectrum. The paper concludes by proposing a general design modification to reduce the radiated noise from similar units.
AB - In recent years, refrigerant compressor design has become increasingly focused on limiting noise emissions, as many of these units are installed in residential spaces. This paper aims to characterize the noise emitted from a small, hermetic, reciprocating compressor and identify the primary transmission path of noise from the compressor to its shell enclosure. Radiated sound power measurements show that the compressor projects noise that peaks at frequencies most sensitive to the human ear. Transmissibility measurements show that the compressor’s vibration isolation system becomes ineffective at high frequencies, as it is mounted to a non-rigid foundation. Measurements of transmissibility and radiated sound power of production line and rigidly-mounted units suggest that the mechanical transmission path dominates the shell excitation across the frequency spectrum. The paper concludes by proposing a general design modification to reduce the radiated noise from similar units.
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M3 - Paper
AN - SCOPUS:85059393862
T2 - 47th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering, INTER-NOISE 2018
Y2 - 26 August 2018 through 29 August 2018
ER -