[Gasification] Gasifiers and kilns

[Kevin Chisholm]

Dear Paul

The JXQ-10A has a nominal output of 10 M^3 per hour of fuel gas, with a 
nominal heating value of about 130 BTU/Ft^3, total about 50,000 BTU/Hour, 
more or less

It should be good for slightly smaller kiln that you indicate. The gasifier 
should lend itself well to variable output, within limits. They are very low 
cost, and would make an excellent test installation. We also have gasifiers 
with 30 and 50 M^3/hr output, good for a nominal kiln size of about 10 ft^3 
and 18 ft^ volume.

The JXQ-10a system comes with an integral blower that will draw air down 
through the fuel bed, into the reaction zone, and then through the quenching 
and cleaning system, delivering it at a positive pressure to the burners. 
While a natural draft burner will work, your secondary air fan would 
intensify the flame, and give you an opportunity to direct the heat in a 
more appropriate manner. A small blower of about 10 to 15 SCFM should be in 
the right size range.

About 15% moisture content is best for the wood chips. Coarse chips are 
better than fine chips. If the chips are not already adequately dry, with a 
bit of thought, you could probably configure a chip dryer that used waste 
heat from the kiln stack to dry the fuel.

If you would like a quote, please contact me off-line with your Postal Code 
or location.

Best wishes,

Kevin Chisholm
www.wattpower.com




----- Original Message ----- 
From: "Paul Stubbs" <pstubbs at uwclub.net>
To: <gasification at listserv.repp.org>
Sent: Wednesday, November 15, 2006 12:53 PM
Subject: [Gasification] Gasifiers and kilns


> As a potter and kiln builder im intrigued by the idea of using a gasifier 
> to
> generate gas to
> fire pottery kilns. What would be required would be a variable output with 
> a
> maximum delivery of 15,000 Bthu per cu foot of chamber size.The whole 
> cycle
> might run over a period of 8 to 12 hours I would be initially interested 
> in
> trying it out on a test kiln of about 5 cu ft. Is this a do-able project 
> or
> is a gasifier not suitable for a wide, variable-output situation.
> I would envisage using chipped hard wood (oak), a forced air fan for
> secondary air at the burner and presumably a variable blower at the front
> end to provide the draught to the ember bed.
> I guess no worries about tar with this type of application
> I would welcome any comments and suggested reading on this.
> Paul Stubbs Ceramics,Kilns and Potters Tools.pstubbs at uwclub.net
>
>
>
>
>
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