Pelican Parts Forums - MORE random pics......

"It was a mistake," Gates admits to an audience left laughing at his honesty. "We could have had a single button, but the guy who did the IBM keyboard design didn't wanna give us our single button." David Bradley, an engineer who worked on the original IBM PC, invented the combination which was originally designed to reboot a PC. "I may have invented it, but Bill made it famous," Bradley said in an interview previously, leaving Bill Gates looking rather awkward.

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GH85Carrera

09-26-2013 07:12 AM

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kach22i

09-26-2013 07:16 AM

High Compression Ratios and Ethanol Blends Combine to Make a Super-efficient Car
High Compression Ratios and Ethanol Blends Combine to Make a Super-efficient Car | IMT Green & Clean Journal
http://news.thomasnet.com/green_clea...rmance-car.jpg

Quote:

Given ethanol’s lower energy content, he expected to hear stories of compromise and sacrifice. But he was surprised to learn of the fuel’s advantages, primarily its higher octane rating, which exceeds 100, and the superior low-end torque it produced in a properly configured engine.

GH85Carrera

09-26-2013 07:17 AM

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sammyg2

09-26-2013 07:49 AM

Drag racers have known about the horsepower avantages of alcohol and high compression ratios for decades, hence the blown alcohol classes.
I even played with it back in my boat drag days but not with much success.

But the amount of alcohol required can be called anything but efficient unless you try to use a tiny engine due to the low BTU content of methanol or ethanol.
The optimum stoichiometric ratio for HP on gasoline is around 12.5 to 1, for most effiency it's just under 15 to 1.
For alcohol max hp is just under 6 to 1.
That's 6 pounds of fuel for 1 pound of air.
Takes a whole bunch more fuel.

BTU for gasoline is around 19k BTU/pound
for methanol it's almost half that.

You can easily get 30 or 40% more power from the same sized alcohol motor vs gasoline, but it takes nearly twice as much fuel to get it.
Color me skeptical.

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kach22i

09-26-2013 07:55 AM

Invisible alcohol fires at Indy hurt quite a few crew members back in the day as I recall.

Something more colorful.

Liquids and solutions quiz
http://www.chemistryland.com/CHM151W...aceCarFire.jpg

Quote:

For safety reasons, the "Indy" cars that race in such races as the Indianapolis 500 are required to use alcohol as the fuel. Up to 2007 it was methanol. After that is ethanol.
#13. Why is an ethanol safer than gasoline with regards to putting out the fire with water?

http://www.chemistryland.com/CHM151W...tteryLight.jpg

'I got carried away': Nascar driver Kyle Busch clocked doing 128mph in 45mph zone
http://www.dailymail.co.uk/news/article-1390731/I-got-carried-away-Nascar-driver-Kyle-Busch-clocked-doing-128mph-45mph-zone.html
http://i.dailymail.co.uk/i/pix/2011/...71_468x344.jpg

Quote:

May 2011- Police booked him for careless and reckless driving and speeding and he was released upon a written promise to appear in court.

GH85Carrera

09-26-2013 09:33 AM

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Flieger

09-26-2013 10:57 AM

Quote:

Originally Posted by sammyg2 (Post 7675274)

If you run close to stoichiometric on Methanol you still come out ahead of gasoline on a power or energy per gram of CO2 basis. Plus Methanol can be made domestically from non-food biomass. Methanol has a high heat of vaporization already so you shouldn't need so much extra fuel for cooling as you do when cooling a combustion chamber with extra gasoline. It's like a free intercooler.

Now, your range is still halved unless you put in a bigger fuel tank.

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