from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See alcohol.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A simple aliphatic alcohol formally derived from ethane by replacing one hydrogen atom with a hydroxyl group: CH3-CH2-OH.
- n. Specifically, this alcohol as a fuel.
from the GNU version of the Collaborative International Dictionary of English
- n. The organic compound C2H5.OH, the common alcohol which is the intoxicating agent in beer, wine, and other fermented and distilled liquors; called also ethyl alcohol. It is used pure or denatured as a solvent or in medicines and colognes and cleaning solutions, or mixed in gasoline as a fuel for automobiles, and as a rocket fuel (as in the V-2 rocket).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline
Continuing our nation's investment in ethanol is one way we can challenge our global competitors.
Corn-based ethanol is economically inefficient and the US does not have the climate, or many climatic areas, where sugar cane can can be grown cheaply and efficiently enough to provide sugar cane-based ethanol, which is seven times more efficient than corn-based.
Some studies that contend that ethanol is a net energy loser include (incorrectly) the energy of the sun used to grow a feedstock in ethanol’s energy balance, which misses the fundamental point that the sun’s energy is free.
The reason that we don't import sugar based ethanol is not that it is hard to transport.
Since the use of ethanol is dictated more by government subsidies and regulation than by sound engineering or economics, it's just not worth the investment (or risk).
Politically though, ethanol is probably a loser until the greenhouse gas issue dies down.
First, the energy content of ethanol is low when compared with gasoline or diesel.
Such wonders were possible because the EPA lifted the cap on how much ethanol is allowed to be mixed into gasoline to meet the annual consumption mandates in the 2007 energy bill, which will rise to 36 billion gallons by 2022.
Until last week, this per-gallon "blend wall" stood at 10%, because ethanol is highly corrosive and can damage engines and exhaust systems and impair other features.
David Friedman of the Union of Concerned Scientists says the key with ethanol is to avoid trading food for fuel.