HomeRoast Digest


Topic: CFM's (4 msgs / 63 lines)
1) From: AlChemist John
I am trying to get a feel for CFM of some fans for slight air 
recirculation/chaff removal in this in-design drum roaster.  Can anyone 
give me some roaster benchmarks?  Any idea what CFM a WBI or maybe a FR 
has?  I'm not trying to fluidize, but these I can compare to.  I have found 
numerous 100 CFM fans, and am thinking of maybe a 57 CFM.  Overkill, under 
powered??
--
John Nanci 
AlChemist at large
Roasting and Blending by Gestalt
homeroast mailing listhttp://lists.sweetmarias.com/mailman/listinfo/homeroast

2) From: Dan Bollinger
You'll have to get the velocity up to some minimum level to make chaff
airborne.  I have some of those 47-57cfm blowers and they seem powerful
enough to move chaff up to about 12-16" away.  I think they'd work of your
system was free-flowing and without any sort of restrictions.  You can cover
the inlet to adjust the flow.  Dan

3) From: David Westebbe
<Snip>
John -
Given that the inside of your drum is likely to be a mere fraction of 1 cu.
ft., I would think that a 57 cfm is overkill.
I'd start with a CPU fan.  They are designed to take high heat, and likely
will move PLENTY of air.
homeroast mailing listhttp://lists.sweetmarias.com/mailman/listinfo/homeroast

4) From: AlChemist John
Sometime around 07:53 12/4/02, Dan Bollinger typed:
<Snip>
Good.  That is what I was thinking.  I report how it works.
<Snip>
--
John Nanci 
AlChemist at large
Roasting and Blending by Gestalt
homeroast mailing listhttp://lists.sweetmarias.com/mailman/listinfo/homeroast


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