Quote:
Originally Posted by bwilson4web
You'll notice the non-existent, diesel hybrid competes.
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Here you go: Link:
http://transtech.anl.gov/v3n3/greet.html - One of the cars listed is:
ICE HEV LSD - intenal combustion engine - hybrid - low-sulfur diesel
which uses less energy than a gasoline hybrid.
As you'd expect. A diesel engine runs at close to 60% efficiency while a gasoline engine peaks at ~45%. Thus the diesel hybrid not only pulls more work out of each BTU of energy, but also has the benefit of a EV mode for city driving. It is the best of both worlds:
- an EV mode for city driving (like a prius)
- a diesel mode for highway (very efficient -same mode used by long distance trains & trucks)