| Title | Diesel-Powered Heavy-Duty Refrigeration Unit Noise |
|---|---|
| Record ID | 49359 |
| Personal Name Creator |
Retka, Thomas J. |
| Source | 50p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Corporate Contributor |
United States. Department of Transportation. Office of the Secretary |
| Publisher | United States. Dept. of Transportation. Office of the Secretary |
| Publication Date | 19760101 |
| Language | English |
| Abstract | A series of noise measurements were performed on a diesel-powered heavy-duty refrigeration unit. Noise survey information collected included: polar plots of the 'A Weighted' noise levels of the unit under maximum and minimum load conditions; a linear and 'A' weighted acoustical time history of the refrigeration unit noise operating from start-up to load conditions representing both minimum (unloaded) and maximum (loaded) cooling capacity; the determination of the unmuffled refrigeration unit engine exhaust noise level under maximum and minimum load conditions; the determination of the noise contribution, under maximum load conditions, from the refrigeration unit engine exhaust and engine cooling system fan to the overall system noise. |
| Rosap ID | dot:10812 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/10812 |
| TRT Terms | Acoustic measuring instruments; Acoustics; Diesel engines; Engines; Machines; Mufflers; Noise; Noise control; Refrigerated structures; Refrigerator trucks; Sound level |
| General Subjects | Noise reduction |
| Classification | AGR - FREIGHT - FREIGHT; NTL - ENERGY AND ENVIRONMENT - ENERGY AND ENVIRONMENT; NTL - ENERGY AND ENVIRONMENT - Environment Impacts |
| Geographical Coverage |
United States |
| Contract Number | DOT-TSC-532 |
| Report Number | DOT-TSC-OST-75-53 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/49000/49300/49359/DOT-TSC-OST-75-53.pdf |
| Format | |
| Database | NTL Digital Repository |