[Gasification] blower suggestions?

[jerome ssengonzi]

Dear Mark,
  Will you please size for me a radial blade centrifugal blower to run a 300mm diameter fire tube?
  Recently I fabricated one with the following: Impeller diam 300mm, eye diam 75mm number of blades 8, blade width 60mm, rpm 2800. The gasifier produces smoke insted. Is there a formula for estimating volume output of such a blower?
  New at gasification,
  Jerome.

Mark Ludlow <mark at ludlow.com> wrote:
  Jim,

I've bought a number of regenerative blowers off Ebay (One super-deal and a
bunch of OK deals). They're a little noisy but pressure or suction head is
no issue and they exist in a number of junk devices. Second choice:
radial-vane centrifugal blowers. Find one that was used in a small materials
transport system (home-shop sawdust collection) or a small bag house where
12-18" of suction is not uncommon. How much air do you need? I'd be happy to
size one for you. If these options don't, a motor from an old Kirby vacuum
cleaner does the job and looks sharp too!

Mark

-----Original Message-----
From: gasification-bounces at listserv.repp.org
[mailto:gasification-bounces at listserv.repp.org] On Behalf Of jim mason
Sent: Tuesday, August 07, 2007 12:55 AM
To: Discussion of biomass pyrolysis and gasification
Subject: [Gasification] blower suggestions?

i need to stop using shop vacs to pull my vacuum for gasifier tests.
i'm curious what people have found useful for gasifier testing, and
also long running when a blower is needed to feed an open flame
situation.

i need to pull at least 10" of water vacuum. a squirrel cage will not do
it.

as usual, the blower needs to be well sealed, and the cooling air for
the motor needs to not come from the blown gas.

what are the good value solutions identified to date?

jim




----------------------------------------------------------------------------
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jim mason
website: www.whatiamupto.com
current project: mechabolic (http://www.mechabolic.org)
announce list: http://lists.spaceship.com/listinfo.cgi/icp-spaceship.com

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