"Evgenij Barsukov" <evgenij_b_no_spam@[EMAIL PROTECTED]
> wrote in message
news:fofjah$efg$1@[EMAIL PROTECTED]
| Androcles wrote:
| > "Evgenij Barsukov" <evgenij_b_no_spam@[EMAIL PROTECTED]
> wrote in message
| > news:fod86n$dpg$1@[EMAIL PROTECTED]
| > | Androcles wrote:
| > | > "Steve" <no@[EMAIL PROTECTED]
> wrote in message
| > | > news:wbqdnTZMuJIrizfanZ2dnUVZ_qiinZ2d@[EMAIL PROTECTED]
| > | > | Evgenij Barsukov wrote:
| > | > |
| > | > | > Steve wrote:
| > | > | >
| > | > | >> John Bailey wrote:
| > | > | >>
| > | > | >>> Is that a fact and reason based answer or just a guess? A
battery
| > is
| > | > | >>> not as efficient as a capacitor and there is a theorem from
| > sophomore
| > | > | >>> EE that "proves" no more than 1/2 the energy stored in a
capacitor
| > can
| > | > | >>> be recovered.
| > | > | >>
| > | > | >>
| > | > | >> Maybe at some EE correspondence school in outer Elbonia, but
not
| > | > | >> anywhere creditable. Most capacitors are nearly 100%
efficient
at
| > low
| > | > | >> frequency and moderate charge/discharge rates, I have no idea
where
| > | > | >> you came up with some "proof" that no more than half can be
| > recovered.
| > | > | >
| > | > | >
| > | > | > Sorry man, it might not be obvious, but this effect is true,
easily
| > | > | > provable based on the differential equation describing
capacitor
| > | > | > discharge and known to every electric engineer:
| > | > | > http://www.smpstech.com/charge.htm
| > | > |
| > | > | But we're not talking about the first-year method of charging a
| > | > | capacitor from an ideal voltage source through a resistor are
we?
Nor
| > | > | are we talking about discharging through a resistor to a purely
| > | > | resistive load, are we?
| > | > |
| > | > | >
| > | > | > As other people have stated earlier, this applies only for
straight
| > | > | > linear capacitor / resistor systems without inductance.
| > | > | >
| > | > | > Switching systems with inductance is a different story and
they
can
| > | > | > be 90-95% efficient.
| > | > |
| > | > | EXACTLY my point when I made the first rebuttal!! There is no
| > "theorem"
| > | > | that states with any sort of generality that "no more than 1/2
the
| > | > | energy stored in a capacitor can be recovered." In fact you can
get
| > | > | nearly 100% out as heat, should that be your goal (as it often
is
in
| > | > | pulsed welding systems, for example). Period. End of story.
| > | >
| > | > At the EE correspondence school in outer Elbonia, if you drain
| > | > a tank of water you can only put half the water back, easily
| > | > provable based on the differential equation describing alcohol
| > | > ingestion and known to every hydraulic engineer that is currently
| > | > unemployed and wondering why he can't get a job even as a
| > | > plumber's mate in inner Elbonia, let alone as a car mechanic's
| > | > tea boy and general gofer in London.
| > | >
| > | > Might I suggest that Evgenij Barsukov is ineducable and suitable
| > | > plonk material?
| > |
| > | You want to measure credentials or salary?
| >
| >
| > Sorry man, it might not be obvious, but this effect is false, easily
| > provable based on conservation of energy as known to every
| > mechanical engineer.
| > http://www.kettering.edu/~drussell/Demos/SHO/damp.html
| >
| I knew you will not accept the challenge. You remind me of that blue
| cube/spring oscillator in your link - pops up without any obvious
| reason, scrabbles a few meaningless one-liners and than disappears
again.
| Why don't you come to the table and play, instead of just bringing
| the ping-pongs to the real players?
|
You remind me of those cretins that change names constantly -
pops up without any obvious reason, scrabbles a few meaningless
one-liners such as "easily provable based on the differential equation
describing capacitor discharge" and thEn disappears again.
Let's see your proof that half the charge on a capacitor will be lost in
an inductive load such as the motor on a Prism.
There's the challenge; salary is irrelevant, you haven't got the job yet.
|
