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Cables and ohms
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15/10/2002 18:11:14
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivie
 
Information générale
Forum:
Windows
Catégorie:
Informatique en général
Titre:
Divers
Thread ID:
00710654
Message ID:
00711527
Vues:
8
>>>Another little known or understood fact about the transmission of power is that for maximum transfer of power the impedence of the load must match the impedence of the power source.
>>
>>Impedance is measured in Ohms; your later comments refer to MW (power units).
>
>Of course, but maximum power (MW) can only be transfered IF the internal impedance of the generator (source) equals the internal impedence of the load (sink). In AC circuts the impedence is equal to the square root of the sum of the squares of the inductive reactance, capacitative reactance, and the ohmic resistance. Assuming that both internal impedance reactance cancel only ohmic resistance remains.

OK.
>>Hydrogen could be used for storage (as in a battery). But let's not forget that the energy has to come from somewhere in the first place. Nuclear energy would be perfectly acceptable, provided the nuclear reactor is far enough from the consumers (say, 150 million kilometers / 93 million miles).
>>
>I would not like to see the adoption of nuclear energy, because of the long life of dangerous radioactive waste. Hydrogen has no such problems.

I repeat: nuclear energy represents no serious thread if the reactor is quite far away, for instance, 150 million km. (I was referring to solar energy.) Actually, some threats do exist in the long run (perhaps in a few billion years) - but this can't be avoided anyway.

OTOH, I agree that the "real" nuclear energy is, indeed, dangerous.

Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
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