Week 7, Lecture 2: Water Resources
North America= expected to have own transportation, most is private and few alternative fuels w.
gasoline, diesel, or used as an alternative
Europe= not expected, expected to use public transport
Gasoline additive made from corn!!!!
More expansive to produce than gasoline
In Brazil 24% ethanol blends are a common fuel (sugar cane residue is used)
Makes no sense to grow corn specifically for gasoline
Recycled vegetable oil is an ideal source material
ROTHSAY, a Canadian company collects grease
Does not modify the engine
Tech. still in development
Difficulties: batteries are expensive and not long-llived
Not suitable for driving long distances, higher speeds
Attractiveness: electrical power CAN be generated without producing CO2 emissions
Internal combustion engines could conceivably powered by hydrogen gas (H2)
Only by-product is water, some traces of nitrogen
->Problem: where do you get the H2??
H2 is rarely found in nature
A technique where electricity is generate from chemical reactions involving hydrogen, currently used
to power buses
! Importance of Conservation