Eric Suchman on fri 8 apr 05
How about a drip plate after red heat?
> From: Ben
> Reply-To: Clayart
> Date: Fri, 8 Apr 2005 17:29:04 -0700
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: Re: VEGETABLE OIL KILN INJECTION?
>
> Paul,Taylor,
>
> A fuel oil burner consists of 4 essential parts:
>
> 1.Pressure including orifice -"Atomizer" typically at 100lbs.
> 2. Blower- air
> 3. ignitor
> 4. Safety (flame sensor)
>
> Don't see how you could intro atomized waste oil (veggie) into the kiln
> without at least the first two (after red heat). By the time you figure the
> pressure system oil/btu rate and air flow/blower requirements. (which math is
> not so troubling) I think it would be less difficult to find a surplus fuel
> burner (already engineered.) and rig some simple pre heat and paper filter .
> If you're already doing it with the step van you're well on the way. I think
> blowing the fuel without an air blower could be asking for trouble.
> My only experience with such systems is servicing commercial units as a
> plumbers apprentice many years ago.
> .Or as Marcia mentioned - drip but you have to build your kiln around that,
> no?
> I too would love to see some working systems
> Take care,
> Ben
>
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Marcia Selsor on fri 8 apr 05
The drip system does not require building a kiln around it. It is a
simple welded steel three steps slanted into the burner port.
The diesel fuel oil burner that you describe consists of the
motor/blower, the pump with a gauge for a consistent 100 lbs.
pressure,, electrodes (ignitor) , and the nozzle rated for a specific
gallon per hour for a specific BTU output as well as the angle degree
of the spray. I adapted one for three nozzles in order to vary the BTUs
and removed the electrodes substituting burning rags for the ignition.
This could possibly also work for the drip system.
Dennis Parks' design is very simple. Both designs are in the old Studio
Potter Book.
To see a working system of the drip system, see Dennis's book on Oil
Firing from Axners or visit the Tuscarora Pottery in Tuscarora, Nevada.
Given proper filtering (thru a coofee can of charcoal briquets) one
might be able to use the vegetable oil in a diesel fuel burner. I can't
make that call.
Marcia
On Apr 8, 2005, at 2:29 PM, Ben wrote:
> Paul,Taylor,
>
> A fuel oil burner consists of 4 essential parts:
>
> 1.Pressure including orifice -"Atomizer" typically at 100lbs.
> 2. Blower- air
> 3. ignitor
> 4. Safety (flame sensor)
>
> Don't see how you could intro atomized waste oil (veggie) into the
> kiln without at least the first two (after red heat). By the time you
> figure the pressure system oil/btu rate and air flow/blower
> requirements. (which math is not so troubling) I think it would be
> less difficult to find a surplus fuel burner (already engineered.) and
> rig some simple pre heat and paper filter . If you're already doing
> it with the step van you're well on the way. I think blowing the fuel
> without an air blower could be asking for trouble.
> My only experience with such systems is servicing commercial units as
> a plumbers apprentice many years ago.
> .Or as Marcia mentioned - drip but you have to build your kiln around
> that, no?
> I too would love to see some working systems
> Take care,
> Ben
Paul B on fri 8 apr 05
I have been wanting to fire my kiln with recycled vegetable oil but don't
have the time or resources to invest in a set of waste oil burners or to
build a set myself. I also can't afford to risk switching my burners over
and then having it not work properly.
But i do have an unlimited supply of oil which i use to run a diesel step-
van with GM 6.5 L n/a engine and it works great as a collection vehicle as
well.
The most practical thing to do would be to just add another set of small
burners above the present LP ones, and wait until the kiln is above red
heat then inject the oil through an atomized nozzle as a way to at least
cut back on LP consumption.
I know this is a stretch here, but does anyone on this list have first hand
experience firing with veggie oil? I know there are guys who experimented
with it and there are books about it - but i wonder if anyone is really
doing it on a full-time basis? If so i would really like to hear more.
thanks,
Paul Borian
Falmouth, KY
Taylor from Rockport on fri 8 apr 05
Paul,
I do not fire with oil (or anything lately for that matter ((poor me)) )
but I AM VERY INTERESTED in that possibility and have done minimal
research into it as a firing alternative. I'm also interested in waste
oil/biodiesel as a vehicle fuel, so I think we need to hook up off list
and share some info.
I think this has a huge potential for potters in areas where wood of any
kind is hard to come by. Here in the coastal bend of Texas, I have found
it very hard to find ready scrap wood for my future kilns, but fast food
joinst grow on trees here. (hehe, see what I did there with that last
part? Funny huh?)
Taylor in Rockport TX
On Fri, 8 Apr 2005 01:40:23 -0400, Paul B wrote:
>I have been wanting to fire my kiln with recycled vegetable oil but don't
>have the time or resources to invest in a set of waste oil burners or to
>build a set myself. I also can't afford to risk switching my burners over
>and then having it not work properly.
...
Marcia Selsor on fri 8 apr 05
Axner reprinted Dennis Parks book on oil firing. He uses vegetable oil
from MacDonald's and other fast food places in Elko Nevada which is 50
miles from his home in Tuscarora. He built all his own equipment, his
designed a drip system. It is also in the old Studio Potter Book and
the second edition of the magazine.OP.
FYI
Marcia Selsor
On Apr 8, 2005, at 5:55 AM, Taylor from Rockport wrote:
> Paul,
>
> I do not fire with oil (or anything lately for that matter ((poor me))
> )
> but I AM VERY INTERESTED in that possibility and have done minimal
> research into it as a firing alternative. I'm also interested in waste
> oil/biodiesel as a vehicle fuel, so I think we need to hook up off list
> and share some info.
> SNIP
> Taylor in Rockport TX
>
> On Fri, 8 Apr 2005 01:40:23 -0400, Paul B wrote:
>
>> I have been wanting to fire my kiln with recycled vegetable oil but
>> don't
>> have the time or resources to invest in a set of waste oil burners or
>> to
>> build a set myself. I also can't afford to risk switching my burners
>> over
>> and then having it not work properly.
> ...
Louis Katz on fri 8 apr 05
Think Palm Fronds.
Louis
> I think this has a huge potential for potters in areas where wood of
> any
> kind is hard to come by. Here in the coastal bend of Texas, I have
> found
> it very hard to find ready scrap wood for my future kilns,
Ben on fri 8 apr 05
Paul,Taylor,=20
A fuel oil burner consists of 4 essential parts:
1.Pressure including orifice -"Atomizer" typically at 100lbs.
2. Blower- air
3. ignitor
4. Safety (flame sensor)
Don't see how you could intro atomized waste oil (veggie) into the kiln =
without at least the first two (after red heat). By the time you figure =
the pressure system oil/btu rate and air flow/blower requirements. =
(which math is not so troubling) I think it would be less difficult to =
find a surplus fuel burner (already engineered.) and rig some simple pre =
heat and paper filter . If you're already doing it with the step van =
you're well on the way. I think blowing the fuel without an air blower =
could be asking for trouble.
My only experience with such systems is servicing commercial units as a =
plumbers apprentice many years ago. =20
.Or as Marcia mentioned - drip but you have to build your kiln around =
that, no?
I too would love to see some working systems
Take care,
Ben
John Britt on fri 8 apr 05
I had an article in CM April 2003 on Veg. Oil Firing. If you don't have
the magazine let me know off line and I will send it,
John Britt
www.johnbrittpottery.ocm
sincultura13 on sat 9 apr 05
Is this the one?
http://www.ceramicsmonthly.com/mustreads/vegoil.asp
Sincultura
--- In clayart@yahoogroups.com, John Britt wrote:
> I had an article in CM April 2003 on Veg. Oil Firing. If you
don't have
> the magazine let me know off line and I will send it,
>
> John Britt
> www.johnbrittpottery.ocm
>
>
_____________________________________________________________________
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Louis Katz on sat 9 apr 05
On Apr 8, 2005, at 9:43 PM, Eric Suchman wrote:
> How about a drip plate after red heat?
I did this in Kansas City after reading about Dennis PArks and Waste
oil. Worked well after I got all the old french fry pieces out of the
oil and figured out how to heat it. Smelled like donuts. It seemed to
like the slow water drip to help spread out the oil.
Louis
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