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It would make a good glider tug !
BRAZILIAN aircraft manufacturer Embraer today unveiled the world's first mass-produced commercial aircraft that runs on sugar cane ethanol fuel. The Ipanema aircraft is designed to take advantage of Brazil's supplies of the fuel, which is cheaper, burns more cleanly and is more efficient than fuels refined from crude oil, company officials said. Brazil is also a major producer of ethanol fuel, extracted from sugar cane. Satoshi Yokota, a top Embraer official, said operating the plane on ethanol was three to four times cheaper than using airplane fuel. The Ipanema is designed mainly as a crop duster. www.embraer.com www.mals.net |
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On Sat, 23 Oct 2004 06:00:15 GMT, "Mal" wrote:
It would make a good glider tug ! BRAZILIAN aircraft manufacturer Embraer today unveiled the world's first mass-produced commercial aircraft that runs on sugar cane ethanol fuel. The Ipanema aircraft is designed to take advantage of Brazil's supplies of the fuel, which is cheaper, burns more cleanly and is more efficient than fuels refined from crude oil, company officials said. Brazil is also a major producer of ethanol fuel, extracted from sugar cane. Satoshi Yokota, a top Embraer official, said operating the plane on ethanol was three to four times cheaper than using airplane fuel. The Ipanema is designed mainly as a crop duster. well those claims are deluded nonsense arent they. ethanol is less efficient as a fuel energy source than avgas. 200 litres of ethanol does not have the anywhere near the range of avgas and being a fermented biological material we'd denude the entire world of arable land if we switched to it globally as a fuel. ....but then the greens were never good at maths. Stealth Pilot |
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Most the gliders I fly have better range than most small aircraft on about
5-10 litres of another aircrafts avgas or a litre of petrol on a winch launch. I attached a picture of the aircraft. The gliding movement is always looking for tug options as the pawnee brave is no longer produced ! "Stealth Pilot" wrote in message ... On Sat, 23 Oct 2004 06:00:15 GMT, "Mal" wrote: It would make a good glider tug ! BRAZILIAN aircraft manufacturer Embraer today unveiled the world's first mass-produced commercial aircraft that runs on sugar cane ethanol fuel. The Ipanema aircraft is designed to take advantage of Brazil's supplies of the fuel, which is cheaper, burns more cleanly and is more efficient than fuels refined from crude oil, company officials said. Brazil is also a major producer of ethanol fuel, extracted from sugar cane. Satoshi Yokota, a top Embraer official, said operating the plane on ethanol was three to four times cheaper than using airplane fuel. The Ipanema is designed mainly as a crop duster. well those claims are deluded nonsense arent they. ethanol is less efficient as a fuel energy source than avgas. 200 litres of ethanol does not have the anywhere near the range of avgas and being a fermented biological material we'd denude the entire world of arable land if we switched to it globally as a fuel. ...but then the greens were never good at maths. Stealth Pilot |
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Stealth Pilot wrote:
well those claims are deluded nonsense arent they. ethanol is less efficient as a fuel energy source than avgas. 200 litres of ethanol does not have the anywhere near the range of Energy per volume isn't interesting, energy per mass ist. (No, I don't have the numbers hany right now.) avgas and being a fermented biological material we'd denude the entire world of arable land if we switched to it globally as a fuel. The actual global food production is enough to feed twice the global population. It's only a question of distribution. ...but then the greens were never good at maths. Neither are you, when the result doesn't fit your opinion. Stefan |
#5
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If the "greenies" really wanted to do
something meaningful they would put all of their energy and money into stopping the population growth - most problems have their basis in more and more people on this earth. The "greenie's" present efforts only result in bitching about almost everything. |
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RHWOODY wrote:
If the "greenies" really wanted to do something meaningful they would put all of their energy and money into stopping the population growth - most problems have their basis in more and more people on this earth. The "greenie's" present efforts only result in bitching about almost everything. I believe the "greenies" do not favor ethanol, becuase it is so energy intensive to produce (watering, fertilizing, cultivating, and harvesting the crop, and finally manufacturing the enthanol) that it is not really "green"; however, it is favored by corporate farms because it provides another market for the subsidized corn they grow, a potentially bigger market than even corn syrup. And many (most?) greenies do believe in and pursue population stabilization through a variety of means, especially in the less developed countries, generally including poverty reduction, decreased childhood mortality, empowering women, and increasing family planning options. Interestingly, a stable population brings it's own problems, but generally not the enviormental type. -- Change "netto" to "net" to email me directly Eric Greenwell Washington State USA |
#7
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On Sat, 23 Oct 2004 22:50:24 +0800, Stealth Pilot
wrote: On Sat, 23 Oct 2004 06:00:15 GMT, "Mal" wrote: It would make a good glider tug ! BRAZILIAN aircraft manufacturer Embraer today unveiled the world's first mass-produced commercial aircraft that runs on sugar cane ethanol fuel. The Ipanema aircraft is designed to take advantage of Brazil's supplies of the fuel, which is cheaper, burns more cleanly and is more efficient than fuels refined from crude oil, company officials said. Brazil is also a major producer of ethanol fuel, extracted from sugar cane. Satoshi Yokota, a top Embraer official, said operating the plane on ethanol was three to four times cheaper than using airplane fuel. The Ipanema is designed mainly as a crop duster. well those claims are deluded nonsense arent they. ethanol is less efficient as a fuel energy source than avgas. 200 litres of ethanol does not have the anywhere near the range of avgas and being a fermented biological material we'd denude the entire world of arable land if we switched to it globally as a fuel. ...but then the greens were never good at maths. Stealth Pilot It is actually far worse than that. Without distillation, the best you can do is 97% ethanol, with 3% water, which makes it unacceptable as fuel. So you have to distill it to get rid of the 3% water. The problem is that it takes more energy to distill the alcohol than it produces as energy. That is why 100% ethanol is so expensive. The only thing that makes it cheaper as fuel is the favorable tax treatment it usually gets. |
#8
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![]() "matt weber" wrote in message ... On Sat, 23 Oct 2004 22:50:24 +0800, Stealth Pilot wrote: On Sat, 23 Oct 2004 06:00:15 GMT, "Mal" wrote: It would make a good glider tug ! BRAZILIAN aircraft manufacturer Embraer today unveiled the world's first mass-produced commercial aircraft that runs on sugar cane ethanol fuel. The Ipanema aircraft is designed to take advantage of Brazil's supplies of the fuel, which is cheaper, burns more cleanly and is more efficient than fuels refined from crude oil, company officials said. Brazil is also a major producer of ethanol fuel, extracted from sugar cane. Satoshi Yokota, a top Embraer official, said operating the plane on ethanol was three to four times cheaper than using airplane fuel. The Ipanema is designed mainly as a crop duster. well those claims are deluded nonsense arent they. ethanol is less efficient as a fuel energy source than avgas. 200 litres of ethanol does not have the anywhere near the range of avgas and being a fermented biological material we'd denude the entire world of arable land if we switched to it globally as a fuel. ...but then the greens were never good at maths. Stealth Pilot It is actually far worse than that. Without distillation, the best you can do is 97% ethanol, with 3% water, which makes it unacceptable as fuel. So you have to distill it to get rid of the 3% water. The problem is that it takes more energy to distill the alcohol than it produces as energy. That is why 100% ethanol is so expensive. The only thing that makes it cheaper as fuel is the favorable tax treatment it usually gets. I've always wondered why those clever bioengineers couldn't teach some bugs to produce iso-octane instead of ethanol. Iso-octane is the lab reference for 100 octane motor fuel. |
#9
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On Sun, 24 Oct 2004 03:00:56 GMT, "Bill Daniels"
wrote: well those claims are deluded nonsense arent they. ethanol is less efficient as a fuel energy source than avgas. 200 litres of ethanol does not have the anywhere near the range of avgas and being a fermented biological material we'd denude the entire world of arable land if we switched to it globally as a fuel. ...but then the greens were never good at maths. Stealth Pilot It is actually far worse than that. Without distillation, the best you can do is 97% ethanol, with 3% water, which makes it unacceptable as fuel. So you have to distill it to get rid of the 3% water. The problem is that it takes more energy to distill the alcohol than it produces as energy. That is why 100% ethanol is so expensive. The only thing that makes it cheaper as fuel is the favorable tax treatment it usually gets. I've always wondered why those clever bioengineers couldn't teach some bugs to produce iso-octane instead of ethanol. Iso-octane is the lab reference for 100 octane motor fuel. now that really is the answer isnt it. we have the studies (they were published in scientific american a few months ago) that point to petrol being the most efficient fuel on the planet. pressure with chromium and iron as catalysts will synthesise hydrocarbons from constituent elements. there must be some bioengineering available that makes use of that fact or some other method for synthesising hydrocarbons. after all how were they produced in the first place? Stealth Pilot |
#10
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I have seen 2 perspectives on the issue... one says its more efficent
to produce the other says it is less efficent? Opinion 1/ From a production standpoint... "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." Or 2/ David Pimental, a leading Cornell University agricultural expert, has calculated that powering the average U.S. automobile for one year on ethanol (blended with gasoline) derived from corn would require 11 acres of farmland, the same space needed to grow a year's supply of food for seven people. Adding up the energy costs of corn production and its conversion into ethanol, 131,000 BTUs are needed to make one gallon of ethanol. One gallon of ethanol has an energy value of only 77,000 BTUS. Thus, 70 percent more energy is required to produce ethanol than the energy that actually is in it. Every time you make one gallon of ethanol, there is a net energy loss of 54,000 BTUs. Mr. Pimentel concluded that "abusing our precious croplands to grow corn for an energy-inefficient process that yields low-grade automobile fuels amounts to unsustainable subsidized food burning". If the fuel is efficent to produce then I would like to believe the following quote from the industry... Ethanol is a much cleaner fuel than gasoline, reducing air-pollution. It is a renewable fuel made from plants -- unlike fossil-fuels, manufacturing it and burning it does not increase the greenhouse effect. well those claims are deluded nonsense arent they. ethanol is less efficient as a fuel energy source than avgas. 200 litres of ethanol does not have the anywhere near the range of avgas and being a fermented biological material we'd denude the entire world of arable land if we switched to it globally as a fuel. ...but then the greens were never good at maths. Stealth Pilot |
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