- #1
LAP3141
- 20
- 4
Any cooling fan, as well as any objects that it cools, will invariably become choked with fine dust after a time. But this seems quite surprising considering that all the dust is being accumulated on surfaces that are exposed to large currents of moving air.
I've learned of two possible reasons:
1) The boundary layer of air attached to the surface does not move and all dust can easily collect there.
2) Static charge on the surfaces will hold dust.
Reason #2 does not seem plausible because dust can collect on grounded heat sinks in computers.
I suppose that the true reason is #1.
Any comments?
Whatever the reason, there seems no way to prevent it other than filtering the air.
I've learned of two possible reasons:
1) The boundary layer of air attached to the surface does not move and all dust can easily collect there.
2) Static charge on the surfaces will hold dust.
Reason #2 does not seem plausible because dust can collect on grounded heat sinks in computers.
I suppose that the true reason is #1.
Any comments?
Whatever the reason, there seems no way to prevent it other than filtering the air.