Reports that two 300 ton (1055 kW), water-cooled rotary screw chillers and a 125 ton (440 kW) air-cooled rotary screw chillers caused noise problems at two different hospitals. Presents case histories of these two chillers, which demonstrate a noise problem known as ‘pure tone’ noise, which is often overlooked in the design process by the practising HVAC engineer. Discusses pure tones and describes how to identify pure tone noise sources. Concludes with recommendations on how to deal with noise-critical installations.
Citation: ASHRAE Journal, vol. 41, no. 6, June 1999
Product Details
- Published:
- 1999
- Number of Pages:
- 4
- File Size:
- 1 file , 860 KB
- Product Code(s):
- D-9289
