Re: Wankels ???

In article <1140197181.111872.186770@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
"Trochoidophobic" <flying_booger@xxxxxxxxx> wrote:

Timberwoof wrote:

Horsepower is a mathematical fiction calculated from knowing the torque
output of an engine and the RPM where torque is measured.

Yes, and electrical power is the identical fiction calculated by
multiplying the number of Coulombs (a large number of electrons) that
travel through a wire each second (Amperes) by the force carried by each
coulomb (Volts). Yea, nobody believes in watts as the measure of the power
of an electrical motor...

Engineers will look at the electric motor's *horsepower* rating in the
manufacturer's catalog whwn selecting a motor, and will use the kilowatt
information to design the wiring that supplies the motor.

I know. I think your irony detector needs to be recalibrated. ;-)


As I stated previously, Watt needed a comparision for his steam engines to a
known source of power, the muscles of horses. So he had a horse walk in a
circle of a known size, lifting a weight. It managed to continously lift 550
pounds 1 foot in 1 second.

But anybody can see that a horse is capable of lifting much more weight than
that in much less than a second and keep it up for a minute. Just watch the
Lippanzer stallions leaping into the air. They weigh more than 550 pounds and
it takes less than 1 second to raise that weight and they can do it
repetitively.

I've never seen Lippanzers doing jumping jacks for their drill sergeant for a
full minute. And, although Watt's comparison of one horse's power to its
lifting ability with the mechanical advantage of a simple pulley system as a
rope wrapped around a shaft made horses look weak, it made his primitive
steam engine look good.

:-)



Most engines will exhibit dynomometer torque curves where the torque
and horsepower curves cross. That's where torque and horsepower are
equal.

My guess is that they were rated in kW and Nm. Different units of power and
torque, so different "crossover points".

That's what I figured after I analyzed the first Triumph literature. At first
I thought that the Hinkley guys were trying to be mysterious or trying make
their copy of an old Kawasaki Ninja look good with better numbers.

They have the same *numerical* value at 5250 horsepower. There's another
post in which someone gave the exact numbers involved. If you measure
torque in Newton-meters and power in kiloWatts, the curves will also cross,
but at some other numerical value. The idea that there is "more power than
torque" to the right of that point is silly. It makes abut as much sense as
saying that there's more volume than mass in a dirigible.

Yes, one must include *all* the words when one chants the mantras of
mathematics and physics before the acolytes if one seeks to rise through the
heirarchy to the priesthood of knowledge. At the top level of the hierarchy,
one finds the most dedicated minds standing before chalkboards repetitively
inscribing various occult symbols and re-arranging said symbols until at last
a glorious formula is revealed and that formula is an equation for
calculating a quantity which will be named after that physicist-priest.

And ever after, the seekers of wisdom and truth will meditate upon the
holiness of Watt and Ohm and Oersted and Maxwell and Ampere and Volta and
Galvani. And the seekers will practice casting spells like "energy equals
mass times the speed of light, squared".

But who amongst the seekers will truly understand how to apply the spell to
the material world and become a "destroyer of worlds"? I've been chanting the
conversion of mass to energy spell for decades, and yet the world is still
here every morning when I awake and convert torque into horsepower to move my
carcass to work...

My friend named his old BMW 2002 "Dammit." When he needed it to go, as when a
light turned green, he'd shout, "Go, Dammit!"

--
Timberwoof <me at timberwoof dot com>
faq: http://www.timberwoof.com/motorcycle/faq.shtml
Copyright © 2006. Reposting this article on commercial web sites is forbidden.
.

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