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island911's Avatar
 
Join Date: Mar 2001
Location: an island, upper left coast, USA
Posts: 73,167

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Everyone you meet knows something you don't. - - - and a whole bunch of crap that is wrong.
Disclaimer: the above was 2¢ worth.
More information is available as my professional opinion, which is provided for an exorbitant fee.
Old 10-19-2022, 09:50 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #121 (permalink)
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Join Date: Mar 2005
Location: Northern CA
Posts: 4,703
Quote:
Originally Posted by island911 View Post
Oh my... I would really like to hear more about how gasoline production takes more energy to produce than it gives.
Many in the US burn E85. For the sake of conversation let's look at ethanol.

Please see page 2 of How Much Energy Does It Take to Make a Gallon of Ethanol? David Lorenz • David Morris Revised and Updated August 1995. Seems like an honest paper - more research required. Feel free to find a better paper.

Energy needed to make 1 gallon of ethanol = 81,090 BTU
Energy from 1 gallon of ethanol = 84,100 BTU
There are some Co-product credits not sure if these are all actually used.

Then you have to burn it in an ICE at say 17-21% efficiency. EV motors I think are around 85-90% efficient.

I'm still digging around for better analysis that includes straight gasoline. The point is gasoline doesn't magically pull itself out of the ground and come out of the gas station pump hose.
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Old 10-19-2022, 11:35 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #122 (permalink)
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Por_sha911's Avatar
 
Join Date: Dec 2003
Location: TN
Posts: 21,122
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Quote:
Originally Posted by hcoles View Post
Many in the US burn E85.

Please see page 2 of How Much Energy Does It Take to Make a Gallon of Ethanol? David Lorenz • David Morris Revised and Updated August 1995. Seems like an honest paper - more research required. Feel free to find a better paper.

Energy needed to make 1 gallon of ethanol = 81,090 BTU
Energy from 1 gallon of ethanol = 84,100 BTU
There are some Co-product credits not sure if these are all actually used.

Then you have to burn it in an ICE at say 17-21% efficiency. EV motors I think are around 85-90% efficient.

I'm still digging around for better analysis that includes straight gasoline. The point is gasoline doesn't magically pull itself out of the ground and come out of the gas station pump hose.
"Many"? Not hardly. "A small percentage" is far more accurate. As far as Ethanol is concerned, it is a nightmare mandated by politicians that has never made sense in the scientific realm but that never stopped them before.

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Old 10-19-2022, 11:49 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #123 (permalink)
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