Sport45 wrote:
Turtle n Peeps wrote:
Yes, and since this discussion is about diesels to gas, how many more % BTU's does diesel have over gasoline or NG? There is your answer.
That is only the answer if the question is which XX gallon tank holds more BTU's of fuel.
I don't remember that being the question.
Ok, one last time:
This was said:Heavy trucks now have the option of liquified natural gas.
Energy density is similar to diesel, so the only extra space needed at the tanks is the insulation. For short haul use, liquified NG is pretty ideal! The fueling network just isn't there for long-haul use, but with NG prices, I suspect we'll see some corridors in the near future where this will be feasible.
I said: If you consider a 15 to 20% energy loss "similar" I guess. I don't. And lets not even talk about the power loss. If you want to; go talk to some of the school bus drivers that went from diesel to NG and see what they have to say. You will get an ear full.
The energy of NG is not similar to diesel.
Look at this chart. It even shows the HP/HR/Gallon. Or calories/ liter if that's your gig.
Look in the HP/HR/ gallon column. See where NG is WaaaaaaaaaaaaaaY down on power/ gallon? There is a reason for that. Now go over to the GGE column and see where the various fuels stand to gasoline.
Now about the power. I said you will lose power switching from diesel to NG. Someone said "you don't lose power."
Here is a Westport conversion for you to see.See the loss of power in the dyno test?
Of the common fuels we use today diesel is pretty much untouchable energy wise. :)