QUOTE(wkeongabguide @ Mar 15 2012, 11:11 PM)
sorry but whats CFM? =S
Added on March 15, 2012, 11:17 pmwith 2x 8cm diameter fan wont the water evaporate too fast?
CFM = cubic feet/minute, in simple term is the amount of air it moves per minute.
i think the best compromise in term of size vs CFM is still a 12v 8x8x2.5cm DC fan (normal PC ventilation fan)
n about evaporation, i think i read it
somewhere, the principle behind cooling an aquarium with a fan is by promoting more evaporation. like wiping sanitizing alcohol on ur hand. when it evaporates, ur hand becomes cool right? so more evaporation = more temperature lowered.
i think water evaporation is a price to pay for cooling an aquarium with fan. my aquarium has a surface area of 16x13 inch, water from my aquarium evaporates approx. 1cm per day. im using a single 8x8x2.5 12v DC fan only. it is suffice to lower my aquarium temp from 30-31 deg C to 25-26 deg C, n sometimes in the morning it can go as low as 24. i dun even hav AC in my room...hehe...
additional reading : read
here if u really into DIY
This post has been edited by kurangak: Mar 16 2012, 10:14 AM