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Saving fan energy in VAV systems. 1. Analysis of a variable-speed-drive retrofit.

Author(s) : ENGLANDER S. L., NORFORD L. K.

Summary

For several years, electronic variable-speed drives (VSDs) have been used on fan motors in large building variable-air-volume ventilation systems to replace inlet vanes. The paper is a case study of a VSD retrofit in which the drives were installed on four fan motors in an office building. The analysis shows that, despite considerable savings over inlet vanes (35%), the high cost of VSDs results in a relatively long payback period.

Details

  • Original title: Saving fan energy in VAV systems. 1. Analysis of a variable-speed-drive retrofit.
  • Record ID : 1993-2168
  • Languages: English
  • Publication date: 1992
  • Source: Source: ASHRAE Trans.
    vol. 98; n. 1; 3-18; 11 fig.; 2 tabl.; 20 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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