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Author: turtoniturtoni Date: Jun 21, 2008 20:46
"It is disputed whether ethanol as an automotive fuel results in a net
energy gain or loss. As reported in "The Energy Balance of Corn
Ethanol: an Update,"[43] the energy returned on energy invested
(EROEI) for ethanol made from corn in the U.S. is 1.34 (it yields 34%%
more energy than it takes to produce it). Input energy includes
natural gas based fertilizers, farm equipment, transformation from
corn or other materials, and transportation. However, other
researchers report that the production of ethanol consumes more energy
than it yields.[44][45] In comparison, sugar cane ethanol EROEI is at
around 8 (it yields 8 joules for each joule used to produce it).
[citation needed] Recent research suggests that cellulosic crops such
as switchgrass provide a much better net energy production than...
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Author: ImmortalistImmortalist Date: Jun 21, 2008 22:23
On Jun 21, 8:46 pm, turtoni fastmail.net> wrote:
> "It is disputed whether ethanol as an automotive fuel results in a net
> energy gain or loss.
Land ready for growing food is finite.
Energy companies want to use this land to grow plants for fuel.
Any plants will make fuel.
Many plants grow where food cannot grow.
Increasing the amount of plants increases the oxygen in the
atmosphere.
Market forces could create to much good air.
What to do? It is good to see the debate begin to widen and show how
this could change everything around, quick as the market can.
http://youtube.com/watch?v=weKJjknf748
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Author: turtoniturtoni Date: Jun 21, 2008 22:38
On Jun 22, 1:23 am, Immortalist yahoo.com> wrote:
> On Jun 21, 8:46 pm, turtoni fastmail.net> wrote:
>
>> "It is disputed whether ethanol as an automotive fuel results in a net
>> energy gain or loss.
>
>
> Land ready for growing food is finite.
>
> Energy companies want to use this land to grow plants for fuel.
>
> Any plants will make fuel.
>
> Many plants grow where food cannot grow.
>
> Increasing the amount of plants increases the oxygen in the
> atmosphere.
>
> Market forces could create to much good air. ...
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Author: ZerkonXZerkonX Date: Jun 22, 2008 06:27
On Sat, 21 Jun 2008 20:46:44 -0700, turtoni wrote:
> "It is disputed whether ethanol as an automotive fuel results in a net
> energy gain or loss.
Let's just say alcohol, shall we? Corn is really irrelevant here or
should be considering the wide variety of ways alcohol can be produced.
So, can alcohol produce a net energy gain in terms of auto fuel?
I would guess ummm, yes.
It would also be better than just a guess that this is not really a
"Ethanol Controversy" but a spun "Oil Controversy".
as in:
> " oil must be refined into gasoline before it can be used for
> automobile fuel.Refining, as well as exploration and drilling, consumes
> energy. The difference between the energy in the fuel (output energy)
> and the energy needed to produce it (input energy) is often expressed
> as a percent of the input energy and called net energy gain (or loss)."
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Author: Daniel T.Daniel T. Date: Jun 22, 2008 09:34
turtoni fastmail.net> wrote:
> "It is disputed whether ethanol as an automotive fuel results in a net
> energy gain or loss.
No process will result in a net energy gain. That's simple physics.
The important question is wether a particular process is sustainable,
can the system create the fuel as fast as it is used? That is obviously
not true with Gas.
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Author: JohnJohn Date: Jun 22, 2008 20:19
ZerkonX wrote:
> So, can alcohol produce a net energy gain in terms of auto fuel?
> I would guess ummm, yes.
Guess again.
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Author: JohnJohn Date: Jun 22, 2008 20:21
Daniel T. wrote:
> turtoni fastmail.net> wrote:
>
>> "It is disputed whether ethanol as an automotive fuel results in a net
>> energy gain or loss.
>
> No process will result in a net energy gain. That's simple physics.
>
> The important question is wether a particular process is sustainable,
> can the system create the fuel as fast as it is used? That is obviously
> not true with Gas.
The only way in the USA to make fuel as fast as it is used is to cut
down on use. Way down.
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Author: ImmortalistImmortalist Date: Jun 22, 2008 21:16
On Jun 21, 10:38 pm, turtoni fastmail.net> wrote:
> On Jun 22, 1:23 am, Immortalist yahoo.com> wrote:
>
>
>
>> On Jun 21, 8:46 pm, turtoni fastmail.net> wrote:
>
>>> "It is disputed whether ethanol as an automotive fuel results in a net
>>> energy gain or loss.
>
>
>> Land ready for growing food is finite.
>
>> Energy companies want to use this land to grow plants for fuel.
>
>> Any plants will make fuel.
>
>> Many plants grow where food cannot grow.
> ...
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Author: ZerkonXZerkonX Date: Jun 23, 2008 07:03
On Sun, 22 Jun 2008 22:19:53 -0500, John wrote:
> ZerkonX wrote:
>
>> So, can alcohol produce a net energy gain in terms of auto fuel? I
>> would guess ummm, yes.
>
> Guess again.
OK. umm hell yes?
" Regardless of the inherent differences between gasoline and alcohol,
though, the fact is that alcohols make ideal motor fuels. The first
practical internal combustion engine - patented by Nikolaus...
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Author: Daniel T.Daniel T. Date: Jun 23, 2008 18:00
ZerkonX X.net> wrote:
> John wrote:
>> ZerkonX wrote:
>>
>>> So, can alcohol produce a net energy gain in terms of auto
>>> fuel? I would guess ummm, yes.
>>
>> Guess again.
>
> OK. umm hell yes?
Guess a third time. *No* energy processing system can produce a net
energy gain. This is physics 101.
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