Quote:
Originally Posted by Logic
Oh ye; 10 out of 10 for ignoring pertinent questions that don't suite you, like:
"...The research institutes who tested in engines got 6 to 10% better fuel economy in the light load situations you last insisted on..." here.
I assume the hope is everyone will simply forget all about this?
That's just one example of you skipping over inconvenient (for you) pertinent points/questions..
Would you like me to go back and list all of them?
Watch this question get the 'Flat Ignore' too everyone!
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1) Dr. Ali Erdemir was hoping for 4% to 5% improvement.
2) A 10% increase in fuel economy would require a 50% reduction in engine friction.
3) According to Dr. Erdemir et al., WLTC, European auto testing in 2000, their 'composite' theoretical engine's parasitic friction represented 11.26% of engine fuel's energy.
4) Two-thirds of that friction would be 'Hydrodynamic', @ 7.506% energy.
5) One-third would be 'Boundary & Mixed-film' friction, @ 3.753% energy.
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6) Since only 'Boundary / Mixed-film' friction is affected by sliding friction, only this 3.753% of energy could be influenced by 'Boron nano-particles' ( Boron-Oxide had already been dropped from the research program ).
7) If the 'Boundary-Mixed-film' friction were completely eliminated, down to a friction coefficient of zero, you could only expect a 3.753% improvement in mpg, as the 7.506% energy of 'viscosity' would still remain.
8) And since 'Mixed-film' friction is essentially 'half' hydrodynamic, the sliding friction improvement from boron would be less than 3.753% mpg.( none of the 'boron' tribologists have ever ventured into this realm of the arena ).
9) Perhaps a 2.814 % mpg increase in the total absence of 'sliding friction.'
10) 'Lower' than 6%- 10%.
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11) The SAE shows automotive engine maximum efficiency, minimum BSFC, at 76.4-mph.
- engine friction=5.3% fuel's energy
- sliding friction = less than 1.776% fuel energy
- at friction coefficient=zero, mpg gain= 0.35%.
- at 100-mph, a 0.78% mpg gain.
for Argonne-era 'worn-out' cars
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12) Erdemir's SAE 15W-40 motor oil of Mu= 0.11, improved to Mu=0.09 with his 1% ( by weight ) nano-boric acid ( an 18.2% friction reduction ), good for a 3.64% mpg improvement ( compared to 6% - 10% )
13) RedLine's 40W-40 motor oil is Mu=0.0453
14) SAE 30W is Mu=0.054 @ 5,000-rpm ( RedLine Synthetic Oil Corporation )
15) Ford Motor Company's SAE 5W-30 with MoDTC is Mu=0.067