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How to Escape From the Iron Age?
(solar.lowtechmagazine.com)
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this post was submitted on 19 Apr 2024
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Resistive, sure. Inductive, not necessarily.
It's the same. It's not because of some losses somewhere on the way. Electricity is simply by far the most expensive form of energy.
I'm not positive, but it seems to me both would require the same amount of energy to increase a given mass to a given temp.
And since electric heating is effective 100% efficient (all the energy is tranformed to heat), I can't really see how either would be more efficient.
There's usually an interface material when using resisitive heat. And there's heat loss from heating the interface material before the heat getting to the actual material that needs to be heated.
Inductive heating can be applied directly without heating the interface material.
Though this is probably more applicable to cooking vs industrial kilns and furnaces.