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Richard Cullip (RichardCullip) - BPL Premium Member

My Locale San Diego County
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CityPoway
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All Forum Posts by Richard Cullip

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Re: Got it & another question
Galen - Is it possible the prior spreadsheet is showing the fuel used in ml while the new spreadsheet is reporting it in grams? 10.2/13 yields 0.785 which is remarkably close to the density (g/...

In Make Your Own Gear » Improved Stove Efficiency Calculator/Spreadsheet
April 26, 10:21am

Re: ml
Delmar - you're right. I mis-wrote grams when I should have said ml. I went back and edited my other post to clarify the oops I made. It's hard not to get sloppy with units since there&...

In Make Your Own Gear » Improved Stove Efficiency Calculator/Spreadsheet
April 25, 10:11pm

Re: Good Catch, Indeed.
Delmar - the .78x is the density of alcohol expressed in g/ml. Set B8 to g/ml if you are entering the fuel amount in ml. (edited to correct my original which errantly said grams)

In Make Your Own Gear » Improved Stove Efficiency Calculator/Spreadsheet
April 25, 9:23pm

Glenn - we are both right .... LOL
Glenn - We are both right. Density of alcohol is temperature dependent. Density of ethanol is .785 @25C and .789 @20C. Methanol comes in at .7865 @ 25C and .791 @20C

In Make Your Own Gear » Improved Stove Efficiency Calculator/Spreadsheet
April 25, 5:55pm

Why the Big difference
Okay guys, my head is officially spinning but, no worries, I've wrapped it duct tape to make sure it doesn't explode. I now know way much more then I ever cared to about barometric pressure...

In Make Your Own Gear » Improved Stove Efficiency Calculator/Spreadsheet
April 25, 5:06pm

Re: Don't know if this is right
Galen - did you adjust the heating value to match your fuel? Canister gas, typically a mixture of propane and butane, has almost twice the heating value as the fuel used in alcohol stoves. If you d...

In Make Your Own Gear » The Alcohol Stove “Efficiency Percentage” Test Thread
April 24, 2:37pm

Re: Some comments
Glenn - I like working in BTUs as it eliminates the need to convert temperature from Fahrenheit to Celsius. It takes 1 BTU to raise a lb of water one degree F. All you need to do is convert lbs to ...

In Make Your Own Gear » The Alcohol Stove “Efficiency Percentage” Test Thread
April 22, 7:27pm

Re: Can anyone please explain why my esbit isn't melting my alum. stove (1400°F vs. 1200°) ??
Interesting question and a wide range of answers, even if some folks were not answering the specific question you asked. I believe the answer is that the open flame of the esbit isn't reach...

In General Lightweight Backpacking Discussion » Can anyone please explain why my esbit isn't melting my alum. stove (1400°F vs. 1200°) ??
April 19, 10:54pm

Re: Re: Esbit Stove Efficiency
Glenn - not quite a simple as just substituting the Esbit's 30.9 kJoules/g for acohol's 25 kJoules/g. You would also have to change the 0.789ml/g used to convert ml of alcohol to grams. Cha...

In Make Your Own Gear » The Alcohol Stove “Efficiency Percentage” Test Thread
April 19, 5:17pm

Esbit Stove Efficiency
I've been following this alcohol stove efficiency discussion with interest. It got me wondering about the efficiency of esbit setups. I've got a cute little 400ml cup and custom sized Ti-Tr...

In Make Your Own Gear » The Alcohol Stove “Efficiency Percentage” Test Thread
April 19, 3:16pm

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