by BiGG » Fri 20 May 2005, 10:40:41
$this->bbcode_second_pass_quote('BitterSweetCrude', 'E')nough about ethanol.
Scientists have already conducted peer-reviewed studies that conclude six units of energy is required to get one unit worth of energy in ethanol
YAWN!
Just because something is “published” does not mean it has been accepted by “peer-review”! This is what “peer-reviewed” means for others looking at submissions …
• to unconditionally accept the manuscript or proposal,
• to accept it in the event that its authors improve it in certain ways,
• to reject it, but encourage revision and invite resubmission
• to reject it outright.
Where is you list of “peers” that accept his submission?
In the meantime allow me to show you some
real facts regarding Ethanol.
Tad Patzek wrote that paper with David Pimentel, let’s see what their “peers” had to say
“Only Dr. Pimentel disagrees with this analysis. But his outdated work has been refuted by experts from entities as diverse as the USDA, DOE, Argonne National Laboratory, Michigan State University, and the Colorado School of Mines. While the opponents of ethanol will no doubt continue to peddle Pimentel’s baseless charges,
they are absolutely without credibility.”
A
United States Department of Agriculture study concludes that ethanol contains 34% more energy than is used to grow and harvest the corn and distill it into ethanol. "We show that corn ethanol is energy efficient as indicated by an energy ratio of 1.24"
"For every BTU dedicated to producing ethanol there is a 34% energy gain... Only about
17% of the energy used to produce ethanol comes from liquid fuels, such as gasoline and diesel fuel. For every 1 BTU of liquid fuel used to produce ethanol, there is a 6.34 BTU gain."
"Ethanol production is extremely energy efficient, with a positive energy balance of 125%, compared to 85% for gasoline. Ethanol production is by far the
most efficient method of producing liquid transportation fuels According to USDA, each BTU (British Thermal Unit, an energy measure) used to produce a BTU of gasoline could be used to produce 8 BTUs of ethanol."
New study confronts old thinking on ethanol's net energy value, 3/28/2005
Ethanol generates 35% more energy than it takes to produce, according to a recent study by Argonne National Laboratory conducted by Michael Wang. The new findings support earlier research that determined ethanol has a positive net energy balance, according to the National Corn Growers Association. That research was conducted by USDA, Michigan State University, the Colorado School of Mines, the Institute for Local Self-Reliance and other public and private entities. A USDA study released in 2004 found that ethanol may net as much as 67% more energy than it takes to produce. Argonne is one of the US Department of Energy's largest research centers.
April 14, 2005 Mike Milliken also reports on
Novozymes and NREL Reduce Cost of Enzymes for Biomass-to-Ethanol Production 30-Fold!
Nobel Prize winning physicst
Steven Chu argues for biomass using cellulose.
"The US already subsidizes farmers to grow corn (like we subsidize oil & gas) to turn into ethanol, but $7bn in the past decade has been wasted because the process isn’t carbon-neutral. “From the point of view of the environment,” explains Chu, “it would be better if we just burnt oil.”
“But carbon-neutral energy sources are achievable. A world population of
9 billion, the predicted peak in population,
could be fed with less than one third of the planet”s cultivable land area. Some of the rest could be dedicated to growing crops for energy. But the majority of all plant matter is cellulose—a solid, low-grade fuel about as futuristic as burning wood. If scientists can convert cellulose into liquid fuels like ethanol, the world’s energy supply and storage problems could both be solved at a stroke.“
"The Stone Age did not end for lack of stone, and the Oil Age will end long before the world runs out of oil" ............ Former Saudi Arabian oil minister Sheikh Zaki Yamani,