T i m wrote:
On Thu, 14 Jul 2005 13:13:53 +0000 (UTC), "Rob"
wrote:

But at the mo my office with sun glaring at me through blinds plus PC and
monitor belting out loads of heat = 36C(97F) in the room!!!!! And thats with
two fans on.

Am I right in thinking that the fans will actually add to the
temperature (motor heat)

A little, depending how efficient they are.

and it's only the chill factor that makes us
feel better?

Increased airflow reduces the thermal resistance between the thing
being blown on and the air. At a given air temperature, blowing that
air at an object generating heat will cool the object. That's why CPU
heatsinks have fans. The thermal resistance from the heatsink to the
air (and thus from the silicon to the air) is reduced and the silicon
will stay cooler than it would otherwise. Similarly when you stand in
front of a fan your core body temperature will reduce as the thermal
resistance from skin to air is reduced.

MBQ