F
fritz
Sylvia Else said:The application is to suck cool air in through an open window at night. During the recent heat wave, it was noticeable that even
though the temperature outside drops at night, the temperature of the house doesn't drop that much. The problem is lack of air
flow.
A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are
still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of
flow, then I could also turn then fan around, so that the blades would be much closer to the window.
Stick the fan outside, blow the air inside. Lateral thinking is absent
in the female of the species.
I considered simply building a duct, but the cost of materials was excessive.
Rubbish - use paper and glue - you obviously have plenty of time
on your hands......
http://en.wikipedia.org/wiki/Papier-mâché