Kmart Grease Pot Supportscreen DIY 03/09/2007

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zelph
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Joined: Tue Aug 14, 2007 1:53 pm

Re: Kmart Grease Pot Supportscreen DIY 03/09/2007

Post by zelph » Wed Apr 16, 2014 11:03 am

Hi Paul, I'm on vacation tent camping and my laptop computer is failing me so i can't do long winded posts :D

will try to answer in full asap.

Dan
http://www.woodgaz-stove.com/

SSGHawk
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Joined: Mon Apr 14, 2014 11:05 am

Re: Kmart Grease Pot Supportscreen DIY 03/09/2007

Post by SSGHawk » Wed Apr 16, 2014 1:39 pm

Thanks Zelph.

So what are your thoughts on forcing the exhaust gas to swirl around the Pot(not just a Kmart pot but any pot)?

Years ago I did some tests with a Bud Lite aluminum beer bottle and a 32 oz. Millier's beer can as the outer windscreen. The Millers can had the top cut off and there was about a 1/4" exhaust gap between the two can all around the top. Stove was an older Starlyte with the built in stand which I used to support the Bud lite bottle water vessel. I had three inlet air holes in bottom sides of the 32 oz out windscreen each large enough for me to insert the Starlyte. Fired it up until boiling taking exhaust temperature readings.Exhaust reading still way over ambient air temperature so I know I was not extracting anywhere near all the heat out of the exhaust.
I made a spiraling exhaust path by using some sort of metallic adhesive and gluing a 1/4" X 1/4" x about 10" Carbon fabric strip around the Bud LIte aluminum beer bottle in a spiral fashion. Fired it up and as soon as everything got really warmed up, the Starlyte went into boil mode and the outer beer can windscreen began approaching melt down. I believe that if I did not have the built in pot stand that the Starlyte would not have boiled.

That was the end of my stoving days for these past years due to work, but it still just makes sense to me that forcing the exhaust to swirl around the pot would extract more heat.

Thoughts?

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zelph
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Re: Kmart Grease Pot Supportscreen DIY 03/09/2007

Post by zelph » Mon Apr 21, 2014 6:28 pm

Ok, there are different schools of thought out there. Some are thinking turbulence is needed for complete combustion of gases as they travel upward. Others say it's a moot point because the distance up the side of the pot is so short. Once the stove is burning hot the air movement is fast. I have gotten good results with the Modified StarLyte Burner having a plain smooth side windscreen to within 1/4" spacing of the pot. Test results over at backpackinglight are coming in positive also.

http://www.backpackinglight.com/cgi-bin ... startat=80
http://www.woodgaz-stove.com/

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