which one is more efficient for improving air circulation and better for battery life?
i have my first solar project going on now. i am using solar power exhaust fan to cool our tropical room. it is running smooth at the moment. configuration is:
-20W solar panel
-12v, 18ah battery
-charge and timer control
-used mercedes aux fan (100W)
i found out that i can power my fan 1 hour perday even in shady days.
my question is, from the thermodynamic point of view, is it better to vent the air (room size 150cube meters, or 4000 cube feet), 6 minutes every hour? or 1 minutes every 10 minutes?
how about the battery life?
thanks
1 min every ten min
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