My point exactly...NG may be cheaper per volume, but you have to burn MUCH more of it to do the same amount of work, and in many applications it simply will not be able to do the same job a diesel engine can do.
It has it’s applications, for sure, but it will never replace diesel altogether. It’s foolish even to try.
You should apply your same logic to power generation.
Natural Gas is far cheaper on a BTU basis. I am talking about energy content, not volume.
Then don't tell that to Wesport who's stock has been on a tear and their LPG Direct Injector for diesels.
Look, Wesport and Orbital Engine out of AU both have the techology. OE is playing with adding LPG DI for off road heavy equipment. I had a discussion when he was alive with my diesel guru (RIP old friend) who was the ulimate diesel guy. We ran the numbers of LPG vs. Diesel for lets say a mining operation and it was huge. What they burn a day would shock you.
Also Clean Energy's 150 LPG filling stations at Pilot Truck Stops for Trucks that will burn LPG, the project to be done by the end of 2013.
It is coming and yes for Diesels...
Does a real good job at home heating and boiling water, not much else.
That may have been the case with mechanical fuel injection, but it ain't so with electronic controls. I've run prototype fuel systems on diesel engines in dyno cells running on a 90/10 mix of CNG and diesel, and there's no power loss relative to straight diesel. You need to keep a little shot of diesel to light the mix, but the majority of the power comes from the gas.