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Standardizing data for VFD Efficiency.

Author(s) : KRUKOWSKI A., WRAY C. P.

Type of article: Article

Summary

In large commercial buildings, moving air for ventilation and space-con¬ditioning may account for 20% to 80% of HVAC site energy consumption.8 Fan systems, which are often comprised of fans, belts, motors, and in many cases variable frequency drives (VFDs), generate the pressure rises necessary to transport the air. Even though VFDs have been used to reduce fan energy consumption by controlling fan motor speed and therefore fan airflow and pressure rise, many fan systems still use more energy than necessary, partly because the industry does not account for the impacts of fan component and system part-load efficiency variations.

Details

  • Original title: Standardizing data for VFD Efficiency.
  • Record ID : 30007805
  • Languages: English
  • Source: ASHRAE Journal - vol. 55 - n. 6
  • Publication date: 2013/06

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