Sound Power Levels and Directivity Patterns of Refrigerated Transport Trailers

Jessie Roy, Peter VanDelden


Refrigerated transport trailers are part of the daily operation of many food processing facilities, distribution centers, grocery stores, and some pharmaceutical facilities.  Detailed sound power data for this equipment are infrequently available.  This paper will present a summary of measured sound power levels and directivity patterns for refrigerated transport trailers based on measurements conducted by RWDI over the past 10 years.  This paper will also discuss some of the standards and certification schemes that are improving the availability of sound power data for new transport trailer refrigeration equipment.

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