quote:

Originally posted by Chug:
I have been experimenting in my spare time this week with a simple pot burner made from a biscuit tin and dog food tin.......
Chug

Hi Chug

I'm suprised at you...Surely you know that the best bio-bodgers use only baked bean cans?
.

.
Nick

Hi folks

I managed to get a car heater fan for better air supply and I have
been testing out some ideas on my biscuit tin/dog food tin mini turk
burner and learning lots and having great fun, I have placed a couple
of photos here
http://www.biofuel-uk.net/TinCanTurk1.JPG

http://www.biofuel-uk.net/TinCanTurk2.JPG

if you look closely you can see that I only have the air supply going
in via a funnel and hosepipe so it's restricting the amount of air but
I'm still collecting parts and can work on this side of it, the burner
tube is three dog food tins one on top of another but I had to drill
some holes in each one, I experimented with hole position as you can
see but it didn't seem to make a lot of difference just needed some
air holes to work better.............without the air holes it kept
dying out and smoking a lot.

God I love this stuff!

Chug

Now that the weather is a bit warmer I have been burning the single bowl heater at very low fuel rates, as low as .08 G/H (outer burner tank temp is only 125 deg f at this fuel rate). These low fuel rates amount to only 2-4 drops/second being fed to the vaporizing bowl, with these small flows the oil needs to be VERY dry, about any water at all in the oil will likely cause the burner flame to go out. I had one 5 gallon can of oil give me fitts, it did not seem to contain that much water but I could not keep the burner lit until I drained all this oil from the system, new dry oil burned fine.

I thought some of you here might like to see this veg oil cooker that is being discussed on the wastewatts list http://groups.yahoo.com/group/wastewatts/

http://www.plantoilcooker.org/

Chug

looks like a standard bit of existing tech wrapped up in a feel good political package and aimed at large unit volume sales only.

The vaporising nozzle may have a tendency to clog up with residues and need replacing frequently. It is the problem with most any vaporising design that uses a small dia closed tube as the vapourisation chamber. either large area with easily cleaned surfaces for vaporisation or an atomisation burner works best for oils.