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MattW03@lemmy.ca to Science Memes@mander.xyzEnglish · 10 days ago

Heat

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Heat

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MattW03@lemmy.ca to Science Memes@mander.xyzEnglish · 10 days ago
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  • village604@adultswim.fan
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    10 days ago

    Is a heating element actually 100% efficient, though?

    • TheFogan@programming.dev
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      10 days ago

      Some of the energy is converted to light.

      • einfach_orangensaft@sh.itjust.works
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        10 days ago

        100% of the energy is converted to light, its just in the IR spectrum.

        Unless u feed the heater with AC power then you are also generating magnetic fields/radio waves…but those are also just photons (light) with a very long wavelengh…

        • turdas@suppo.fi
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          10 days ago

          Space heaters mostly heat by convective heating, where the heat energy is transferred from the element to the air molecules around it. This doesn’t involve infrared radiation (though in practice it is involved because any object above 0 K radiates infrared).

        • Martineski@lemmy.dbzer0.com
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          10 days ago

          You reminded me of a certain video (or videos?) on quantum fields that I watched a few months back. Truly fascinating subject.

      • DaddleDew@lemmy.world
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        10 days ago

        Which unless it goes out through a window would eventually be turned into heat anyway, right?

        • BurgerBaron@piefed.social
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          10 days ago

          Yeah it’s still thermal radiation, us being able to see it isn’t a disqualifier :p

    • YerbaYerba@lemmy.zip
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      10 days ago

      deleted by creator

    • DaGeek247@fedia.io
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      10 days ago

      Heat pumps move heat from outside to inside, and they use less energy than the amount that is brought into the insulated area, resulting in efficiency numbers over 100%. (less energy used than the amount brought inside was used to bring the inside energy levels up)

      https://www.cnet.com/home/energy-and-utilities/a-heat-pump-is-more-than-100-efficient-yes-really-heres-how/

    • InputZero@lemmy.world
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      9 days ago

      deleted by creator

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