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1. wat100+(OP)[view] [source] 2025-11-30 04:41:59
How much power would a square meter at 1400C shed from convection?
replies(3): >>baobri+J4 >>fsh+hb >>Madnes+le
2. baobri+J4[view] [source] 2025-11-30 05:31:36
>>wat100+(OP)
Not much in space; There's almost no matter to convect!
3. fsh+hb[view] [source] 2025-11-30 07:06:25
>>wat100+(OP)
A sports car radiator has about that size and dumps 1 MW without boiling the coolant.
replies(1): >>alexti+Qe
4. Madnes+le[view] [source] 2025-11-30 07:48:32
>>wat100+(OP)
I dont have firm numbers for you since it would depend on environmental conditions. As an educated guess though, I would say a fucking shit ton. You wouldn't want to be anywhere near the damn thing.
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5. alexti+Qe[view] [source] [discussion] 2025-11-30 07:54:06
>>fsh+hb
A car's "radiator" doesn't actually lose heat by radiation though. It conducts heat to the air rushing through it. That's absolutely nothing like a radiator in a vacuum.
replies(2): >>fsh+nj >>tsimio+wJ
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6. fsh+nj[view] [source] [discussion] 2025-11-30 08:53:59
>>alexti+Qe
That's the point. Forced air cooling is way more efficient than radiative cooling.
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7. tsimio+wJ[view] [source] [discussion] 2025-11-30 13:50:55
>>alexti+Qe
The question was about comparing the 1400KW of radiative cooling to how much convective coolig you could get from the same radiator on Earth.
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