TITLE

Backward-Curved Fans

AUTHOR(S)
Kavanaugh, Steve
PUB. DATE
May 2012
SOURCE
ASHRAE Journal;May2012, Vol. 54 Issue 5, p81
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The article offers the author's perspective on why he finds it upsetting that electrical engineers can make fractional horsepower fan motors with efficiences near 90%, while mechanical engineers seem to be content to couple them to fan wheels with efficiences of around 30%. He stresses that mechanical engineers can do better with energy efficiency. He notes that one way of rewarding manufacturers of fan wheels is by changing the standars for unitary air-conditioners and heat pumps.
ACCESSION #
77250816

 

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