Now power lines.. the problem with stealing this is the same. There maybe a
high E-Field from the 50kV lines overhead, or close to powerlines the magnetic
field maybe relatively high.. but stealing useful power here also requires some
very high permeability core...such as a transformer. The ol' V^2/R gives
power density in the field so one can calculate it and then using a calibrated
antenna.. can measure what you could recieve in dB's. But usefulness???
Nope....
This goes the same with waste heat... like car engines for example. Cars
are typically only 10% effecient, while the heat loss is some 80%.. out the
exhaust. The catalystic converter takes some of this heat energy to
convert the hydrocarbons to less harmful by products like CO2, H2O. One
can place thermoelectric converters around the engine but not much power
can be echieved again.. to make it worth while. This is why you have not
seen any devices currently on the market.
Since neuclear power is so cheap to produce (outside of the $100 billion
for the existing plant and costs to expose of the waste) that they really don't
care about heat waste... unless they get to 'hot' inside.. why bother shielding
it?
Do some math on E and H fields in the ambient with 377 ohms impedance
and you'll find that not much power can be had... out of the air! If you could
develop power from the air.. (E & H) then you probably are in a RADHAZ
zone and health effects maybe a issue of more importance. There is also
limits to this criteria, as ANSII has established and the IEEE has accepted it.
The US military has also stringant RF limits where personnel can be.. when
RF equipment is radiated.
If you can measure E & H field emissions, it does not mean you can 'tap' this
as power.. just that your test equipment is highly sensative.
v/r Ken Carrigan
PS.. there is regenerative systems on Naval Ships that tries to recapture
waste heat (reducing signature as well) but only some 5-15% effecient as
designed in.
>> Any ideas or related ideas? Why worry about creatingenergy when the
>> amount of waste in power lines, end use products, etc., would create
>> infinite amounts of captured electricity?
>
>When I was a co-op student working at a nuclear plant near my town,
>I noticed the station was very hot and noisy inside. At one point
>I put my hand on one of the steam transfer pipes, and it was very hot.
>I asked my supervisor why insulation wasn't on the pipes, which would
>help retain heat, but they said it wouldn't be cost effective to
>insulate the pipes or something like that. Then again, I saw a lot of
>other stupid things when I was there also, so I wasn't really surprised
>they said that.
>
>I have also thought about what you said, using shielding or something
>to either keep the energy in the wires/pipes, or something to capture
>the excess energy. In the case of the nuclear station, either thermal
>insulation around the pipes to keep the heat in or some sort of heat
>pump or thermoelectric system to create electricity from the excess
>heat. Or maybe both, whichever would be more efficient.
>
>Seems to me something like this could be used in house wiring as well,
>if the wires were shielded it would mean less energy loss and probably
>a better living environment for the people around it, due to less
>EM radiation..
>
>ttyl
>-Steve
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