ISO 12759-6:2024

Fans — Efficiency classification for fans — Part 6: Calculation of the fan energy index

Publication date:   May 22, 2024

General information

60.60 Standard published   May 22, 2024

ISO

ISO/TC 117 Fans

International Standard

23.120   Ventilators. Fans. Air-conditioners

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Scope

This document defines the calculation method for determining the fan energy index (FEI), which is an energy efficiency metric for fan duty points. This metric provides a standardized and consistent basis to compare fan energy performance across fan types and sizes at a given fan duty point.
This document is applicable to fans driven by electric motors and fans without drives. It is not applicable to circulating fans or air curtains.
The fan energy index can only be calculated for fan duty points above a minimum air power of 125 W (where air power is the product of volume flow rate and fan static pressure) or above a minimum volume flow rate of 2,0 m3/s.

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PUBLISHED
ISO 12759-6:2024
60.60 Standard published
May 22, 2024