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I'm inclined to think you're right, but I can't figure out one thing - the command module (apparently) in Apollo 13 got down to 38F without active heating. That
by ryanisnan 1y ago
I'm inclined to think you're right, but I can't figure out one thing - the command module (apparently) in Apollo 13 got down to 38F without active heating. That's much colder than standard data centre rack temps.
In the example of a data centre, there would be considerably more heat generation than 3 astronauts, but, I would like to understand more. 38F is cold, so heat is clearly lost not as slowly as we might think.
- xnx 1y agoThe Apollo passive radiators can dissipate ~2500 Watts into space. With most systems shut down, only ~500 Watts was coming from the remaining systems and the astronauts bodies.
- ryanisnan 1y agoCool, thank you. So I read this as fundamentally, the heat they dissipated far exceeded the heat they produced. Do you mind opining on what similar figures would be with modest passive radiators and a typical data centre rack heat output?
- xnx 1y agoNo idea what the passive radiators might look like (50x the size of Apollo?), but an Nvidia GB300 NVL72 uses 120,000 watts.