Originally Posted by norgale
Doesn't the train need to carry a much larger volume of gas than it does diesel to get from point A to point B? I'm thinking that any gain from using lng over diesel would be offset by the weight of hauling the amount of lng needed to keep the train running.
1 Gallon of LNG weighs 3.84 Lbs and has 89,000 BTU's
1 Gallon of Diesel weighs 7.076 Lbs and has 136,533 BTU's
LNG weighs 54% the weight of Diesel
LNG has 65% of the BTU's of diesel
LNG has 23,200 BTU's per pound
Diesel has 19,300 BTU's per pound
Te fuel tank would need to be 35% larger and much thicker (Pressure vessel)
to contain the LNG.
The question is what is the difference in hydrocarbons emissions of the two fuels.