Share

Noise reduction in bus A/C systems with screw compressors. I. Compressor evaluation.

Author(s) : MA Y. C., SJOHOLM L., GLEASON S.

Summary

Screw compressors for bus air conditioning (A/C) have many advantages: low noise, reduced vibration eliminating the need for isolation mounts, a large operating speed range, and quiet unloading. However, sometimes interesting resonance situations can occur. The opportunity for this to happen is largely increased for roof-mounted A/C systems, where the discharge tubing can become quite long, given that the compressor is situated in the engine compartment. This paper discusses different features, such as unloading, volume ratio, oil viscosity, oil flow and bracket design, etc., from sound and vibration perspectives. See also this Bulletin, reference 2008-2715.

Available documents

Format PDF

Available

  • Public price

    20 €

  • Member price*

    15 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Noise reduction in bus A/C systems with screw compressors. I. Compressor evaluation.
  • Record ID : 2008-2714
  • Languages: English
  • Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2008/07/14

Links


See other articles from the proceedings (125)
See the conference proceedings

Indexing