lyla kaplan on mon 12 may 03
hi jeremy,
I also am very interested in developments of this new style of firing. have emailed a little bit with John Britt, the guy who wrote the CM article, and he sent me a link to some info on waste oil burners http://www.kroll.co.nz/ . i like the idea of just the simple dripping technique he describes, as opposed to burners, though....if you fire with wood in the beginning, i think you only need to do oil for the last few hours to keep the temp climbing. i am wondering if the introduction of hydrogen is necessary for reduction... if the smell doesn't get fierce, i would imagine this is the future of firing! i had no idea waste oil was almost ubiquitous, it totally seems like a win-win! although, i think donut oil would be more pleasant :)
please share any info you gather!
lyla_kaplan@hotmail.com
imagine
>From: Automatic digest processor
>Reply-To: Clayart
>To: Recipients of CLAYART digests
>Subject: CLAYART Digest - 10 May 2003 to 11 May 2003 (#2003-132)
>Date: Mon, 12 May 2003 00:00:03 -0400
>
><< multipart1 >>
MSN 8 with e-mail virus protection service: 2 months FREE*
Hank Murrow on mon 12 may 03
On Monday, May 12, 2003, at 06:52 AM, lyla kaplan wrote:
> I also am very interested in developments of this new style of firing.=20=
> have emailed=A0 a little bit with John Britt, the guy who wrote the CM=20=
> article, and he sent me a link to some info on waste oil burners=20
> http://www.kroll.co.nz/=A0 . i like the idea of just the simple =
dripping=20
> technique he describes, as opposed to burners, though....if you fire=20=
> with wood in the beginning, i think you only need to do oil for the=20
> last few hours to keep the temp climbing.=A0i am wondering if the=20
> introduction of hydrogen is necessary for reduction...=A0if the smell=20=
> doesn't get fierce, i would imagine this is the future of firing! i=20
> had no idea waste oil=A0was almost ubiquitous, it totally seems like a=20=
> win-win!=A0although, i think donut oil would be more pleasant :)
>
> please share any info you gather!
>
Dear Lyla;
I developed an oil burner for a natural draft kiln around 35 years ago=20=
which performed very well, firing a 12 cu ft cross draft kiln to C/10=20
in 10 hours on 5-6 gallons of stove oil.
The burner consisted of cast iron plates 4" square that were set in the=20=
brickwork so that there was a 1/2" slot above the plate for the air to=20=
enter. There were two of these in the 'front' of the kiln. The fuel=20
dripped onto the plates (two feeds) and there was a small retaining=20
wall cast into them for retention of the fuel.
The reason they worked so well and started up with virtually no smoke=20
was the Bernoulli effect, where the air speeding up to get across the=20
narrow opening lowered the pressure over the plate and thus the boiling=20=
point of the fuel was correspondingly lowered. probably down to around=20=
275F, from its normal 575F.
It is very easy to make a wooden pattern to have cast at a local=20
foundry for very little money, so it is a cost effective way to fire=20
with oil.
Cheers, Hank in Eugene (recovering from Showcase in Portland)
| |
|
