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A comment on “Cold Tube” cooling system uses half the energy of an air conditioner. Parent comment

Re:“Cold Tube” cooling system uses half the energy of an air... by ekianjo on Friday August 21, 2020 @03:34AM (#24232878)
> The notoriously bad energy efficiency of air conditioners

Their efficiency is based on thermodynamics, so there's not much you can do to break the physical barriers.

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Re:“Cold Tube” cooling system uses half the energy of an air... by contravariant on Friday August 21, 2020 @06:22AM (#24233652)
I'm fairly certain air conditioners aren't operating anywhere near the thermodynamic limit. At ordinary ambient temperature you could maintain a temperature difference of 10C with about 3000% efficiency.
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