Air is better than water

  • @PunnyName@lemmy.world
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    8 months ago

    Technically, no, air is a much worse thermal conductor, and most liquids are significantly better. It’s a pretty efficient thermal INSULATOR, however.

    The practical applications, however, make the movement of air OUT of your system an efficient cooling method.

    • @somtwo@lemmy.world
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      498 months ago

      Not trying to be contrarian or a smart-ass, but aren’t water cooled systems kinda just air cooled systems with the radiator moved elsewhere?

      • @frezik@midwest.social
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        228 months ago

        Yes. The advantage is that you can make the surface area of the air cooling part much, much larger. I had a water cooled system that could do web browsing and other basic tasks with zero fan speed (though it was better to leave it on very low speed to avoid hunting behavior).

        Also, there’s some benefits to thermal mass. Short term spikes can be absorbed by the water without increasing fan speed.

        • @crystal@feddit.de
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          38 months ago

          I had a water cooled system that could do web browsing and other basic tasks with zero fan speed

          Isn’t that the default for (air cooled) notebooks?

          • Björn Tantau
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            18 months ago

            I once built a home theatre PC that was completely passively cooled. The case was basically the entire heat sink. It got the heat from the CPU through heatpipes. Unfortunately the shitty motherboard died due to unreleased reasons and since then I didn’t have the time or money to revive it.

            The cases aren’t even built anymore. No idea why, it was really cool.

      • Every liquid cooling system is pretty much that. Eventually you need to give it to the outside and the outside is usually air. Heck even river cooling for Power plants ends up “air cooling” through the rivers surface.

        • @lauha
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          8 months ago

          All of that air cooling is just radiation cooling in the end

            • @lauha
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              28 months ago

              The heat is not going anywhere in the long run though.

      • @AnUnusualRelic@lemmy.world
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        68 months ago

        I think that the point is to get a much bigger radiator by moving it to a less cramped location. The point is to make the process more efficient, not to change its nature.

    • @yesmeisyes@sopuli.xyz
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      58 months ago

      Usually copper heatpipes that are found in most air coolers have a drop of liquid in them to boost perfomance.