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Joined 1 year ago
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Cake day: October 28th, 2023

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  • Ok, more powerful fans, but the proportion scales.

    When you use energy to move the air, that energy is transformed from electric (in the case of fans) to kinetic. The air keeps that energy in kinetic form while it’s moving.

    But if you move away a couple of meter from the servers, you won’t feel the air moving anymore. Why? Because it stopped moving. Why? It lost its kinetic energy. How? Friction! With the case, with the walls, with the still air. Where did that energy go? Heat, just a few 0,01°C because the energy was very low to begin with, and spread in a large volume. So very marginal heating.

    That was my whole point, never said the heat is generating in the fans, but the energy transferred to the air is dissipated as heat in other parts of the room.

    “The wind on earth is also not warming the globe”. Of course not, it’s the other way round. The warming of the air is what causes it to move. It’s a different way to generate wind, cannot compare it with fans.