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#1
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Dave,
How can you call Ethanol a "Starry Eyed Approach" when we are already putting close to 4 Billon gallon into the Nation's Energy supply/year? Also; before you damn Ethanol's cost let's see just how much cost is involved in fossil fuel. We both know it's not free. I can offer 77% return on Ethanol. What do you say is Oil's % of return on a gallon of Mid-East Crude delivered to Long Beach, Calif.? http://community.webtv.net/tassail/ThomPage |
#2
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Not only that but according to my calculations oil will be at 213 a
barell by 2010. Nuclear power is the way to go IMO. No waste problems, we can use the depleted uranium in Iran. With todays technology we can make nuclear power plants for autos, boats, home's ect. Using wind to power anything will never happen. Capt. Suzy 35s5 NY |
#3
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"SUZY" wrote
Nuclear power is the way to go IMO. With todays technology we can make nuclear power plants for autos, boats, home's ect. But as Dave pointed out, not with today's mindset and the triumph of faith over reason. Blind faith tells many that Nuclear power is bad. If advertising can convince the same fools that Ethanol is the way to go, we will, no matter what the cost. |
#4
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Vito,
I didn't know you had an Eye Problem. It should clear up with Ethanol. 85% less emissions (G) http://community.webtv.net/tassail/ThomPage |
#5
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"Thom Stewart" wrote
Vito, I didn't know you had an Eye Problem. It should clear up with Ethanol. 85% less emissions (G) I simply don't believe that, although I trust you do. What emissions does it have 85% less of? Again, before 1970, US and other cars made good use of high octane gas in high compression engines. But these high compression engines made NOx, not from gasoline but from compressing and heating air. So EPA dictated that all US engines had to run on lower octane unleaded gasoline, which required lowering compression ratios significantly. The new cars typically got 40% poorer gas mileage and thus produced more COx *per mile* even with expensive catalytic converters - but they did make less NOx. OK? In fact, we could reduce gas consumption by that same 40%+ over the next 5 years by simply requiring that all new cars have high (12:1+) compression engines and that refineries provide the high octane gasoline they'd need. The "Ethel" Corp. would be back in business! Moreover, if you used high octane gas in a low compression engine, designed for unleaded regular, you will get less power and poored mileage than from running regular - and make more carboniferous smog. This is because the high octane gas will not be fully burned in the lower compression motor. Ethanol has an even higher equivalent octane rating than leaded gas. That's what made it an attractive racing fuel. It permitted 14:1 and higher compression ratios that made more power (especially with a tad of nitro). But, for that reason, it cannot burn efficiently in a low compression motor any more than super-high octane race gas will. It follows that, if you build motors to use ethanol efficiently, then they will perforce make more NOx. Alternately, if you retain low compression, you cannot burn the Ethanol properly and will get both poor milage and thus make more COx per mile. It is inescapable. Magic bullet proponants try to cover up these facts with half-truths by pointing to mileage achieved by tiny light cars running E85, but never mentioning that these cars cannot pass DOT safety spec's and would do just as well on gasoline - just as they hide the unfavorable balance of energy in/out by ignoring the energy cost of growing corn. You are prone to the same when you cite the cost of oil. The dollar cost of crude oil is meaningless to the energy in/out equation. Question is "How much *energy* does it take to get that crude and make enough gasoline to propel a typical US car say 100 miles?" versus "How much energy does it take to grow the corn and make enough Ethanol to push the same car the same distance with the same level of performance?". |
#6
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Vito,
I'd like to remind you that this whole OT discussion started about "High Price Of Imported oil" I must be missing something in your Posts. I'm not sure you have ever addressed the problem of dependence on foreign imported oil. You haven't, as yet, address todays Ethanol technology production of Cellulosic Ethanol. Vito, if we are using switchgrass to make Ethanol, it cost us nothing to grow Corn! Switchgrassis a Perennial and doesn't need to be plowed or planted, just cut like Hay. It will grow on very poor soil, where food crops can't grow. The same can be said for Popular trees, sugar cane stalks, even urban wastes. This also produces enough heat to Co-Gen Electricity. Vito, I've heard it said that swtchgrass growing on unusable land could free us from foreign imported oil. As far as emissions; probably the same as gasoline but some 85% less. Even if we burn another 1/2 gallon for the same energy, the emissions are still less, plus its "MADE IN AMERICA" http://community.webtv.net/tassail/ThomPage |
#7
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"Thom Stewart" wrote
Vito, I'd like to remind you that this whole OT discussion started about "High Price Of Imported oil" I must be missing something in your Posts. I'm not sure you have ever addressed the problem of dependence on foreign imported oil. Sorry you missed it. Ethanol requires high compression engines to burn efficiently - to get decent gas mileage. So does high octane (rated) gasoline. Such engines make more NOx, so EPA effectively banned them circa 1970. Gas mileage in comparable cars dropped about 40%! It follows that we could reduce our oil consumption by that same 40% , very nearly eliminating our need to import oil, by simply rescinding that EPA rule. But the trade off would be more NOx. OK? Ethanol has a very high equivalent octane rating, meaning that it requires even higher compression engines to burn efficiently. Thus an equivalent family sedan burning E85 *efficiently* will produce the same NOx as a gasoline engine because the NOx comes from compressing and heating the air, not from the fuel. So, if we are going to accept more NOx in order to burn E85, then why not do the same and burn alot less gasoline?? OTOH, if more NOx is NOT acceptable, then E85 cars in the USA will get crappy mileage - 1.5 times poorer than gasoline in low compression engines and over 2x poorer than gas in efficient engines. That means it will take as much or more ENERGY to produce enough E85 to move a car XXX miles than we get back. Where will that energy come from? Foreign oil?? Coal? Nuclear fuel? If so we may as well go to electric cars. You haven't, as yet, address todays Ethanol technology production of Cellulosic Ethanol. Vito, if we are using switchgrass to make Ethanol, it cost us nothing to grow Corn! Switchgrass is a Perennial and doesn't need to be plowed or planted, just cut like Hay. It will grow on very poor soil, where food crops can't grow. The same can be said for Popular trees, sugar cane stalks, even urban wastes. This also produces enough heat to Co-Gen Electricity. Just like hay, eh? Is switchgrass native to the USA? If not, what will introducing 1000s upon 1000s of acres of it do to our native species of grasses and our ecology? Is it any better than native grass? That aside .... Have you ever made hay? It requires much more manual labor than corn. Where will that labor come from? Illegal aliens? Nor does hay grow free as you seem to think. Like a lawn it requires touch-up reseeding and plenty of fertilizer - made from oil! Then it must be dried in the field before it can be bailed for storage. During that time it must be raked and turned over several times so it dries evenly and if it rains during that time the crop may be ruined. Alternately, the grass can be cut and ensiled wet, which is prolly better for ethanol production. But that takes as much energy as harvesting corn silage. I've farmed both hay and corn. Without doing a lot of research I believe it would be cheaper, both financially and energy wise, to grow corn than hay for the same ethanol yield. In the USA we grow corn for silage as well as grain. There is little or no waste. Corn grown for grain is genetically engineered to produce little or no waste. By the time it is dry enough to harvest, and has been "combined", there isn't much stalk, leaves or cob left to get ethanol from and what is left is needed by the soil as fertilizer. Silage corn is cut wetter but is much more difficult and energy consuming to harvest, transport and store than grain. Based on the figures you and others have provided, I sincerely doubt you could get enough ethanol out of corn or hay, grown for that purpose, to run the machines neded to produce it. Other countries have different situations. You (?) pointed out that one of them had tons of sugar cane as a waste after the sugar is extracted but now use that waste to make ethanol, getting back a gallon for every 0.7 gallons used. Gee, that's great. But I don't know any US equivlent to that waste except perhaps feed lot manure. Could it be used to make more ethanol than required for production? Vito, I've heard it said that swtchgrass growing on unusable land could free us from foreign imported oil. I've heard that Jesus Christ is coming to save us too - but I'm not holding my breath for either one. As far as emissions; probably the same as gasoline but some 85% less. Even if we burn another 1/2 gallon for the same energy, the emissions are still less, plus its "MADE IN AMERICA" Sorry, but that simply does not compute. Back in the late 1960's we were told that low compression engines produced fewer emissions too. And that proved true if by "emissions" you meant NOx emissions. But it meant a lot more of other emissions per mile driven! Obviously, the ethanol evangelists are using the same math. If we burn 1.5 gallons of ethanol to do the same work as 1 gallon of gasoline now (or 0.6 gallons if EPA died on the spot) then it is hard to believe that i going to make less smoke. 85% less of what?? Might as well pray. |
#8
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Hey Wop,
Are you saying Switchgrass isn't a Native to the USA? Vito, You better read up on American History! At one time, in the Mid-west,South,and Northern Plains it was all the Human Eye could see. It was what the Cowboys designed "Chaps" for. It grows about 10ft Tall in one growning season. When it was cut down and plowed under it resulted in the "Dust Storms" that forced the immigration to Calif, Here is a write up on "Switchgrass" Long; Very long but really worth the read. Biofuels from Switchgrass: Greener Energy Pastures Click here to download or view this brochure in PDF format (191 k) The grass stretched as far as the eye could see, and hundreds more miles beyond that. An ocean of grass—deep enough to swallow a horse and rider—swaying and singing in the steady wind of the Great Plains. § The American prairie—tens of millions of acres— once looked like this. But that was centuries ago, before the coming of the white man, the railroad, and the steel plow. Today, corn and beans hold sway, and the remnants of America's tallgrass prairie are confined mostly to parks and preserves. § Now, though, in research plots and laboratories in the Plains states and even in the Deep South the seeds of change are germinating. The tall, native grasses of the prairie, so vital to our land's ecological past, may prove equally vital to its economic future. Such grasses once fed millions of bison. Soon, grown as energy crops, they may help fuel millions of cars and trucks, spin power turbines, and supply chemicals to American industries. Test plots of switchgrass at Auburn University have produced up to 15 tons of dry biomass per acre, and five- year yields average 11.5 tons—enough to make 1,150 gallons of ethanol per acre each year.The U.S. Department of Energy (DOE) believes that biofuels—made from crops of native grasses, such as fast- growing switchgrass—could reduce the nation's dependence on foreign oil, curb emissions of the "greenhouse gas" carbon dioxide, and strengthen America's farm economy. The Biofuels Feedstock Development Program (BFDP) at DOE's Oak Ridge National Laboratory (ORNL), has assembled a team of scientists ranging from economists and energy analysts to plant physiologists and geneticists to lay the groundwork for this new source of renewable energy. Included are researchers at universities, other national laboratories, and agricultural research stations around the nation. Their goal, according to ORNL physiologist Sandy McLaughlin, who leads the switchgrass research effort, is nothing short of building the foundation for a biofuels industry that will make and market ethanol and other biofuels from switchgrass and at prices competitive with fossil fuels such as gasoline and diesel. Not the grass in your backyard First, a distinction: switchgrass and your suburban lawn grasses—bluegrass and zoysia grass— are about as similar as a shopping-mall ficus and an old-growth redwood. Switchgrass is big and it's tough—after a good growing season, it can stand 10 feet high, with stems as thick and strong as hardwood pencils. But what makes switchgrass bad for barefoot lawns makes it ideal for energy crops: It grows fast, capturing lots of solar energy and turning it into lots of chemical energy— cellulose—that can be liquified, gasified, or burned directly. It also reaches deep into the soil for water, and uses the water it finds very efficiently. And because it spent millions of years evolving to thrive in climates and growing conditions spanning much of the nation, switchgrass is remarkably adaptable. Now, to make switchgrass even more promising, researchers across the country are working to boost switchgrass hardiness and yields, adapt varieties to a wide range of growing conditions, and reduce the need for nitrogen and other chemical fertilizers. By "fingerprinting" the DNA and physiological characteristics of numerous varieties, the researchers are steadily identifying and breeding varieties of switchgrass that show great promise for the future. Switchgrass can be cut and baled with standard farming equipment. Yield of dreams In the hard, shallow soil of southern Alabama, Dave Bransby is turning cotton fields into swatches of grassland. Some Alabama farmers joke that there's no soil in Alabama to farm—two centuries of King Cotton and steady erosion haven't left much behind. Yet Bransby, a forage scientist at Auburn University, has found a crop that thrives the Among the 19 research sites in the Eastern and Central United States raising switchgrass for the BFDP studies, Bransby's site holds the one-year record at 15 tons per acre. Those are dry tons weighed after all the moisture's been baked out. Convert that into ethanol, an alcohol that can fuel vehicles, and it equals about 1,500 gallons per acre. Bransby's 6-year average, 11.5 tons a year, translates into about 11,500 gallons of ethanol per acre. An added bonus is the electricity that can be produced from the leftover portions of the crop that won't convert to ethanol. Many farmers are already experienced at raising switchgrass for forage or to protect soil from erosion. Besides showing great promise for energy production, switchgrass also restores vital organic nutrients to farmed-out soils.Many farmers already grow switchgrass, either as forage for livestock or as a ground cover, to control erosion. Cultivating switchgrass as an energy crop instead would require only minor changes in how it's managed and when it's harvested. Switchgrass can be cut and baled with conventional mowers and balers. And it's a hardy, adaptable perennial, so once it's established in a field, it can be harvested as a cash crop, either annually or semiannually, for 10 years or more before replanting is needed. And because it has multiple uses—as an ethanol feedstock, as forage, as ground cover—a farmer who plants switchgrass can be confident knowing that a switchgrass crop will be put to good use. Farmers working in production mode might not match Bransby's carefully tended research plots, but if the future brings rises in oil prices—or if environmental taxes are eventually imposed on fossil fuels—energy from switchgrass could prove economically competitive with petroleum and coal, making biomass crops attractive to American farmers. And with recent advances in the technology of gasification, switchgrass could yield a variety of useful fuels—synthetic gasoline and diesel fuel, methanol, methane gas, even hydrogen—as well as chemical by-products useful for making fertilizers, solvents, and plastics. Strong environmental roots Annual cultivation of many agricultural crops depletes the soil's organic matter, steadily reducing fertility. But switchgrass adds organic matter—the plants extend nearly as far below ground as above. And with its network of stems and roots, switchgrass holds onto soil even in winter to prevent erosion. Besides helping slow runoff and anchor soil, switchgrass can also filter runoff from fields planted with traditional row crops. Buffer strips of switchgrass, planted along streambanks and around wetlands, could remove soil particles, pesticides, and fertilizer residues from surface water before it reaches groundwater or streams—and could also provide energy. And because switchgrass removes carbon dioxide (CO2 ) from the air as it grows, it has the potential to slow the buildup of this greenhouse gas in Earth's atmosphere. Unlike fossil fuels, which simply release more and more of the CO2 that's been in geologic storage for millions of years, energy crops of switchgrass "recycle" CO2 over and over again, with each year's cycle of growth and use. The road ahead One reason BFDP researchers are confident that switchgrass can become an important feedstock for ethanol production is the groundwork that's already been laid by corn growers. U.S. ethanol production from corn currently totals nearly 2 billion gallons a year. Some of this ethanol is blended with gasoline to make gasohol; some is further refined to make gasoline octane boosters; and some is burned, either in pure ("neat") form or mixed with a small percentage of gasoline, in fleets of research and demonstration vehicles. Looking down the road, McLaughlin believes switchgrass offers important advantages as an energy crop. "Producing ethanol from corn requires almost as much energy to produce as it yields," he explains, "while ethanol from switchgrass can produce about five times more energy than you put in. When you factor in the energy required to make tractors, transport farm equipment, plant and harvest, and so on, the net energy output of switchgrass is about 20 times better than corn's. " Switchgrass also does a far better job of protecting soil, virtually eliminating erosion. And it removes considerably more CO2 from the air, packing it away in soils and roots. Switchgrass offers excellent habitat for a wide variety of birds and small mammals.Back to the future At the turn of the last century, America's transportation system was fueled by biomass: 30 million horses and mules, give or take a few million, pulled buggies, hauled wagons, dragged plows. According to Ken Vogel, a U.S. Department of Agriculture forage geneticist helping develop and test switchgrass for the BFDP, replacing animal power with machine power freed up 80 million acres of U.S. land—land that had been used to grow grass and other feed for these millions of animals. Now, at the dawn of the next century, the wheel could begin to turn full circle. On millions of acres of farm land not needed for food crops, fast-growing energy crops of switchgrass—harvested and converted efficiently to clean-burning, affordable ethanol, methanol, or diesel—could once again supply vast amounts of horsepower. In short, biomass could bring back a 21st-century version of the prairie. And along with the prairie, it could bring a new crop to America's farms, a boost to U.S. energy independence, and brighter prospects for a clean, sustainable future. According to BFDP and its research partners across the country, that's a future worth cultivating. For more information, contact: Bioenergy Feedstock Development Program Oak Ridge National Laboratory P.O. Box 2008 Oak Ridge, TN 37831-6422 865-576-8143 (fax) Produced for DOE's Office of Transportation Technologies and the Office of Power Technologies within the Office of Energy Efficiency and Renewable Energy http://community.webtv.net/tassail/ThomPage |
#9
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"Thom Stewart" wrote
Are you saying Switchgrass isn't a Native to the USA? Vito, You better read up on American History! At one time, in the Mid-west,South,and Northern Plains it was all the Human Eye could see. It was what the Cowboys designed "Chaps" for. It grows about 10ft Tall in one growning season. No, just that I've never seen or heard of it despite crossing the country many times. Funny no historians or writers of that time, including my thrice-great grandfather who led any number of wagon trains ever mention 10' high grass with 1/4" stalks blocking their way. Maybe the Buffalo kept it trimmed grin Here is a write up on "Switchgrass" Long; Very long but really worth the read. Evangalists sat the same about the Bible. The grass stretched as far as the eye could see, and hundreds more miles beyond that. An ocean of grass-deep enough to swallow a horse and rider-swaying and singing in the steady wind of the Great Plains. § Yet nobody noticed it?? The American prairie-tens of millions of acres- once looked like this. But that was centuries ago, before the coming of the white man, the railroad, and the steel plow. Today, corn and beans hold sway, and the remnants of America's tallgrass prairie are confined mostly to parks and preserves. Ahhh, I don't think so. I've been to most western parks and never saw 10' grass. § Now, though, in research plots and laboratories in the Plains states and even in the Deep South the seeds of change are germinating. The tall, native grasses of the prairie, so vital to our land's ecological past, may prove equally vital to its economic future. Such grasses once fed millions of bison. Soon, grown as energy crops, they may help fuel millions of cars and trucks, spin power turbines, and supply chemicals to American industries. Really plunks your heart strings doesn't it? Prose worthy of the old snake oil salesmen. No wonder they're enjoying all that grant money. Test plots of switchgrass at Auburn University have produced up to 15 tons of dry biomass per acre, and five- year yields average 11.5 tons-enough to make 1,150 gallons of ethanol per acre each year. How does that compare to corn? U.S. Department of Energy (DOE) believes that biofuels-made from crops of native grasses, such as fast- growing switchgrass-could reduce the nation's dependence on foreign oil, curb emissions of the "greenhouse gas" carbon dioxide,..... Back in 1978, Gas in California cost $1.20/gal compared to 0.40 in Mexico. Asked why the head Mexican explained "Because we don't have a DOE." Kindly explain how burning 1.5 gallon of ethanol vs 1 gallon of gas reduces CO2. Switchgrass is big and it's tough-after a good growing season, it can stand 10 feet high, with stems as thick and strong as hardwood pencils. snip biblethumping Switchgrass can be cut and baled with standard farming equipment. Bwahahahaha! Sure it can. Ask a farmer to borrow his haymaking equipment to harvest 10' high grass with stems like hardwood pencils. Yield of dreams .........., Bransby's site holds the one-year record at 15 tons per acre. And how much energy and chemicals did Bransby use to produce and dry those 15 tons/acre? Those are dry tons weighed after all the moisture's been baked out. Convert that into ethanol, an alcohol that can fuel vehicles, and it equals about 1,500 gallons per acre. Bransby's 6-year average, 11.5 tons a year, translates into about 11,500 gallons of ethanol per acre. Meaningless info unless we are told how many BTUs/gallon are needed to grow, harvest, dry and cook then distill the grass to get a gallon of ethanol and how many BTUs of energy do we get back. If switchgrass was so prevalent, and beneficial, why do cattle pastures not use it still? If it's such a great feed why does everybody grow corn? Why did out ancestors work so hard to eradicate it? Maybe we otta sic the mythbusters onto it. |
#10
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So be it Vito,
It take Wisdom to recognize Wisdom, If the audience if deaf (or refuses to hear) there is no music. W. Lippman I believe said it in 1929 |
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