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If a machine is never 100% efficient transforming energy into work because part of the energy is converted into heat, does it mean an electric heater is 100% efficient? @showerthoughts@lemmy.world

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[-] Tramort@programming.dev 6 points 9 months ago

Yes. The end form of all energy is heat.

The problem is that heat is a high-entropy source of energy. As a result, the losses come when you try to convert all that delicious heat back into electricity (like with a steam turbine). The "efficiencies" only go one way (and I put efficiencies in quotes because, as you pointed out, getting energy into the form of heat is inevitable, whether that's the form you wanted or not)

this post was submitted on 17 Feb 2024
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Showerthoughts

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