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There is a far bigger problem than thermodynamics in play, namely: dust. Not just in computer cases: it also applies to places like photography darkrooms. The u
by kosma 8y ago
There is a far bigger problem than thermodynamics in play, namely: dust. Not just in computer cases: it also applies to places like photography darkrooms. The usual pattern of placing a single blowing-out fan in a ventilation duct is all wrong: it pulls air in from the cracks in doors and windows. The dust-proof way is to make the fan pump the air into the room, but also install a HEPA filter on the air intake pipe/fan.
- misnome 8y agoThis isn’t exactly wrong, but ignores the fact that the primary purpose of a fan in a darkroom isn’t to clear dust, but extract chemical fumes. You probably want fumes pumped directly outside, not back through the gaps in the door into the general building.