One gallon of diesel fuel is equal to 139,200 BTU. The man who invented the compression-ignition engine was Rudolf Diesel. This is where diesel fuel gets its name.
140,000 btu/gallon, nominal
btu per pound * pounds per gallon OK, it sounds as if you know the value of fuel in oil btu per pound.Now find out how much a gallon of fuel oil weighs and multiply the btu value x that weight in pounds and that is the value per gallon. Or simply, diesel fuel is #2 fuel oil which contains 140,000 btu per gallon.
About 115K BTU per gallon.
140,000
No. 6 fuel oil has a combustion value of 151,300 - 155,900 Btu/US gallon.
#2 fuel oil = 140,000 btu/gallon. Psi does not matter.
approx. 140,000
A gallon of jet fuel supplies 126,000 BTU. So...a million BTU is less than 8 gallons.
Diesel will always give you better fuel mileage as diesel fuel itself contains more BTU (the measure of thermal energy) in a given quantity than compared to gas.So therefore a diesel engine can extract more mileage out of a gallon of diesel fuel as there is more energy to extract out of that gallon as compared to a gallon of gas.Considering this, this is why diesel fuel prices would have to rise considerably over gas before the two would be equal on a cost per mile basis.
114,000 BTU/gallon
The number of BTU's per gallon of oil depends on the type of oil, of which there are many different kinds for different uses. The links, below, offer guidance in converting such values. Use your favorite web search engine to find conversions for specific oils, per the following examples: convert gallon of diesel fuel #1 to BTU convert gallon of home heating oil to BTU
While not as a chart, this is an idea about combustion energy values: Ethanol 77,000 Btu per gallon, Gasoline 125,000 Btu per gallon, Diesel 135,000 Btu per gallon and Biodiesel 130,000 Btu per gallon. Grades of fuel imply differences in composition and thus differences in combustion Btu values. Combustion values for ethanol will not depend on source of ethanol as long as ethanol content/composition is the same. Ali Hamza A_Hamza@yahoo.com