Re: Stupid "free energy" idea

On Tue, 6 May 2008 14:40:38 -0400, "David L. Burkhead"
<dburkhead@xxxxxxx> wrote:


the truck which is otherwise wasted energy. So it is indeed
_possible_ that the device might generate more power than it would use
up in require additional energy to the truck.

Hal, you don't know what you're talking about.

The energy required to climb up that step (equivalent to the energy required
to push the plate down) will be _higher_ than any energy you can get out of
that movement since nobody has yet to come up with a generator that's 100%
efficient. It's not a matter of "recovering waste energy" (except in the
special case where the truck is braking anyway). It's a case of making the
truck work harder and then using some of the energy from that extra work.

The energy required to compress the plate is not otherwise "wasted energy."
It's _extra_ energy you are requiring the truck to provide. And no, it is
_not_ possible that the device would generate more power than it would
require the truck to use normally.

No generator is 100% efficient, so the energy that comes out of the
generator will be less than the energy used to compress that plate. The
truck is not 100% efficient, so the truck will need to expend more energy
than is required to compress that plate. Thus, the extra enrgy required to
be expended by the truck (in terms of fuel) will _always_ (caveat as above)
be greater than the energy gotten out of the generator. Period effing dot.

It's the one's who _can_ do the math that are telling you why it won't work.

Now, if you had some device that was powered by the flex that already exists
in roadways then you might have something in comparison to current roadways.

essentially that is what you are doing by compressing a plate in the
roadway.

But that would require something more rigid than existing roadway materials
for them to "work" against. But if you had something more rigid than
current roadway materials, cheap enough to use over significant portions of
roadway, you'd get more benefit from simply making the roads out of the more
rigid material making the trucks more fuel efficient (less rolling
resistance).

I don't agree. If the generator was creating a direct force against
the forward motion of the truck then, yes, you would be correct.
However, that is not the case. The force responsible for compression
of the plate is _perpendicular_ to the forward motion of the truck.
The vast majority of the wasted energy of the gravitational force on
the truck is lost as heat in the tires and roadway. That is the force
you are attempting to tap off. Again, you would be correct if the
movement of the plate provided a direct resistence to the motion of
the truck, but it most certainly does not. The question remains as to
the efficiency of the generator, the force required for the truck to
overcome the slight "bump up" to get back to the roadway level, and
whether or not those energy levels are equal or inequal, and I know
one thing for certain: none of the posers here have anywhere near the
data to prove that. And again, presuming the generator may be cost
effective, these could easily be installed in areas where trucks are
slowing anyway, such as approaches to toll plazas and weigh stations.

Hal
.

Relevant Pages

  • Re: System and method for electrical power generation utilizing vehicle traffic on roadways US Paten
    ... the tires are flexing anyway. ... to electrical energy. ... heat generated in truck tires and the flexing of the roadway evidenced ... loaded truck drives over it. ...
    (rec.martial-arts)
  • Re: Stupid "free energy" idea
    ... Another comparison is the tilt on a treadmill--takes more energy ... cross from one plate in the system to another, ... there's no difference between the truck climbing up or ... existing roadway materials for them to "work" against. ...
    (rec.martial-arts)
  • Re: Stupid "free energy" idea
    ... would use up in require additional energy to the truck. ... Actually it is impossible to generate more power than you use. ... convince a patent examiner that it would work, ...
    (rec.martial-arts)
  • Re: System and method for electrical power generation utilizing vehicle traffic on roadways US Paten
    ... The energy produced by compression of the plate is DIRECTLY EQUAL to ... the energy deficit required to get the truck out of the depression. ... And how _much_ does the roadway flex, compared with how much this system ... Only if the combination of the plates and the system they drive has no ...
    (rec.martial-arts)
  • Re: Stupid "free energy" idea
    ... From an energy standpoint, there's no difference ... road surface after compressing the plate. ... in the pavement though, and the resistance to an 80,000 pound truck ... But that would require something more rigid than existing roadway materials ...
    (rec.martial-arts)
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