ramble about jets and potstands

[zelph]

jet size - bloom time - total burn time:

.0315 - 0:45 - 4:46

.039 - 0:41.67 - 4:26.33

.046 - 0:37 - 4:04.33

.0625 - 0:37.67 - 3:46.33

Daren.........

4 X 3 = 12 test burns = buy your fuel by the gallon

Nice test results Daren....

[DarenN]

as ya'all know i can't get DA up here in Canada. so i buy Methyl Hydrate by the gallon for about 6-7 bucks a gallon.

as an after-thought, i should have built a new stove for each jet size; instead of just drilling out the jets for the next test. that way i could have done boil tests for each jet size as well. later i will pick the tests that i like the best; build a new stove, and do the boil tests.

[zelph]

The results of boil test would be nice

[DarenN]

here's the test results for the 6 jet Pepsi G:

Jet Size - Bloom Time - Total Burn Time

.0315 - 0:39.33 - 6:22.33

.039 - 0:35 - 6:04.33

.046 - 0:31 - 5:44.33

.0625 - 0:31 - 5:25.67

so;
fewer jets bloom sooner and burn longer.
larger jets bloom sooner and burn shorter.

next i'll do some boil testing with the three stoves documented here.
they all have .0625 jets now, but i'll start with them, and see what shakes out.

Daren.........

[zelph]

Shake it out!!!! Watch the water boil

[DarenN]

three stoves, nine tests = 18 cups of water i just watched boil! and 162ml of Methyl hydrate burned up!

all standard bench testing parameters observed. except; NO windscreen.
all three stoves are .0625" jets.
18ml Methyl Hydrate. (same BTU potential as 15ml DA)

number of jets - bloom - boil - flame out

24 - 1:03 - 6:55 - 7:16

12 - 0:47 - 6:30 - 6:38

6 - 0:40 - 8:00 - 9:00

the 6 jet stove looks like a winner.

..........

[zelph]

the 6 jet stove looks like a winner.

Nice testing, by this time you should be able to know when the water is just about ready to boil by listening to noise

This a great statistical thread.....thanks a bunch for your time and efforts. I am well pleased !!!!!!

[DarenN]

the 6 jet stove looks like a winner.

Nice testing, by this time you should be able to know when the water is just about ready to boil by listening to noise

This a great statistical thread.....thanks a bunch for your time and efforts. I am well pleased !!!!!!

thanks Zelph!
the info that i'm posting in this thread is stuff that i've always wondered about. the relationship between jet size/number of, and bloom/boil/burn times. and just never took the time to correlate the data. ten years of stove building and i'm just getting to it now? new stovies that are interested in jet type soda can stoves (and old stovies too) should have somewhere to look where they can find this kind of info. i figured this is as good a place as any.
i'm having a lot of fun with this, by the way!

..........

[DarenN]

i figured it's about time for a pic.
three new burners ready for assembly,
and my testing setup.


Daren......

[zelph]

This is amazing....you're going to wind up with the most intensive analysis of jet size comparison to be found any where. Awesome project!!! You've become a "Master Stovie" I'll have to take a trip up there and give the secret handshake