Mayf,
The following table may assist you in actual energy content (BTU) of
various combustible materials. They have all been used, including
manure, for propelling motorized vehicles. While these are for steam
boilers, energy content does not change with application, just the
efficiency of extraction.
BTU Content of Fuels
Coal BTU's
1 lb. 10,000 - 15,000
1 Ton 25,000,000 (Approx.)
Electricity BTU's
1 W 3.412
OIL BTU's
1 Gal. #1 Fuel 136,000
1 Gal. #2 Fuel 138,500
1 Gal. #3 Fuel 141,000
1 Gal. #5 Fuel 148,500
1 Gal. #6 Fuel 152,000
Gas BTU's
1 lb. of Butane 21,300
1 Gal. of Butane 102,600
1 Cu. Ft. of Butane 3,260
1 Cu. Ft. of Manufactured Gas 530
1 Cu. Ft. of Mixed Gas 850
1 Cu. Ft. of Natural Gas 1075
1 lb. of Propane 21,600
1 Gal. of Propane 91,000
1 Cu. Ft. of Propane 2,570
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Hope this gets through. If not, try:
http://www.steamonline.com/btu.html
Handy Energy Converter:
http://www.eia.doe.gov/kids/energyfacts/science/energy_calculator.html
Here is a study of relative cost, including BTU content, for various heating
fuels. It is handy to note that for a market application, the costs/BTU run in
a narrow range. This is a result of competing energy source (propane,
electricity, natural gas, etc.) for this application.
http://www.erpud.com/comparison.htm
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Steve Laifman
Editor - TigersUnited.com
drmayf wrote:
> so do you have data or not?
> mayf
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