Fans are a complete science in themselves. All of the different fan designs came about because one design didn't work for a certain apllication so a new design comes along. It's the same thing with fluid pumps.
The fan design changes now appearing have more to do with tweaking efficiency, ( doing more work while using less energy ) and becoming more quiet.
If you are more specific about your application, what you're pumping, how far, how high etc., I'm certain you'll get some good useful info here.
Be very specific though such as, are you moving air? fresh air? contaminated air ? air with dirt or grease in it? hot air? cold air? air with steam in it? Do you need high pressure? or lots of air?
These criteria will help us give you some valuable feedback, thanks.
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Unless you're the lead dog on the sled, the view is always the same....
Gday Minsaramanithan, What guest has called forward fan and Backward fan, we in Australia call forward curve and backward curve they are a centrifugal type or barrel type fan. backward curve are used in extraction setups especially if the air is drawn through filters as they handle good air volume with higher back pressures. The forward curve is invariably used on the evaporator of an AC unit as it is quieter and will handle greater back pressure than an axial type fan ( propeller blade). The Axial type of fan is usually used on the Condensor unit of the AC where noise or back pressure from Ductwork is usually not such an issue and it is cheaper to build.
hope this helps Cobenster @ Gmail.com.
I am a registered member but cant remember my log in details
Fans for HVAC Application?
Re: Fans
