3 ms·
Forced air cooling require air to be colder than the heatsink surface and evaporative cooling require relative humidity to be less than 100%. I don't know how
by numpad0 2mo ago
Forced air cooling require air to be colder than the heatsink surface and evaporative cooling require relative humidity to be less than 100%.
I don't know how bad the situation in Europe is, but we're already at point where there are times and places on Earth where one can construct a primal instinctive understanding of that by simply walking out of an air conditioned room(to which you SHOULD return within half an hour and MUST within an hour). "Just get fans bro" is tone deaf.
- elil17 2mo ago> I don't know how bad the situation in Europe is Yeah there are those places, and northern Europe is not one of them!
- numpad0 2mo agoI mean, those places didn't have air conditioning 50-100 years ago and did fine, now air conditioning is life saving devices there. Global warming/climate change is real. The WHO guide others are posting says fans only work under 40C, but that's the absolute maximum. There's no other option than resorting to devices based on refrigeration cycle when people are already dying("estimated through excess mortality" or however you dress it up), beyond being useless(human cognitive performance significantly degrade at above 28C). The upper bound of 40C quoted in other comments is also just absolute maximum temperature - it's just saying that there's no way fans do anything if temperature of air and body are actually equal. The practical upper bound is lower than that(humidity and metabolism dependent, I guess).
- SAI_Peregrinus 1mo agoPractical upper bound is closer to 35°C, at 100% relative humidity. Or equivalent wet bulb temperature for lower humidities.