X-Mozilla-Keys:                                                                                 

Fred wrote:

snips..

I measured the velocity profile with a small hand held air velocity meter
attached to the end of wooden dowel (so my hand would not affect the flow
pattern), and it was quite good.  Such a velocity meter is available from
Omega (www.omega.com).  Request their thermocouple catalog (The Temperature
Handbook), about as thick as a phone book, and in the current edition go to
page L-40 for the model HHF22 digital anemometer for $119.  
Fred

snips..

Fred that anemometer is not shown in my 1995 edition. 
What is the resolution?

Could you upload a quick scan of the catalog picture. I am kind of 
reluctant to order a new catalog and wait till that comes to buy 
the anemometer.

I want to come up with a curve for the duct wall that will give us
uniform flow through the rad more or less.

I am thinking of building a rig that the curve can be adjusted
with cross angles on thin sheet metal and slots in the sidewalls
to adjust the shape.

BTW the squirrel cage blower was free from my local HVAC company.
thanks to a tip from Bill Schertz. Apparently they just throw them
away when the heat exchanger in the AC/furnace starts leaking.

Will also make a nice low speed wind tunnel :-)

Paul Lamar
 
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