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|kbn| · 03-31-2004, 10:29 AM

Fans are like pumps, whats the point in using a pump that while it can do 30l/m at 0 head can only do 1l/m at 0.5 head. Does the fan give any static pressure ratings?

I suggest you have a read of this which has lots of stuff about fans. hover your mouse over "operating point".

So assuming that the fan you intend to use can push the hole 60cfm at the static pressure (flow resistance) of your heatercore, work out the temperature difference between the cold air and the hot air.
Also push-pull config is compleatly POINTLESS!!!!! the best way to have two fans is both sucking one infront of the other on the SAME SIDE so that the static pressure is higher and pulls more air through.

I would suggest a fan like this becuas eit is the perfect size for a heatercore. Its 24v and at 8v is silent and goes at 12 is nicely quiet pushing lots of air! at 24v it gets niosy and will blow things accross my room. I think for your setup you will need it about 15-24v. Finding a fan like this can be difficult unless you can afford £50 for a fan. This cost me £15.

If you want silence I suggest moving your heaterecores (get a bigger one, or two) outside. make some kind of enclosure for them. Get a few high cfm fans which are capable of running in wet environments (costs a bit more) and keeting the rest of your stuf with your computer. I dont know if you would need a biugger pump but I would suggest make it least restrictive possible maybe using the heatercores in parrelell. This should definatly give you some nice temps and also take advantage of the winters cold weather.

03-31-2004, 10:29 AM	#4
\|kbn\| Cooling Savant Join Date: Feb 2004 Location: W. Sussex, UK Posts: 329	Fans are like pumps, whats the point in using a pump that while it can do 30l/m at 0 head can only do 1l/m at 0.5 head. Does the fan give any static pressure ratings? I suggest you have a read of this which has lots of stuff about fans. hover your mouse over "operating point". So assuming that the fan you intend to use can push the hole 60cfm at the static pressure (flow resistance) of your heatercore, work out the temperature difference between the cold air and the hot air. Also push-pull config is compleatly POINTLESS!!!!! the best way to have two fans is both sucking one infront of the other on the SAME SIDE so that the static pressure is higher and pulls more air through. I would suggest a fan like this becuas eit is the perfect size for a heatercore. Its 24v and at 8v is silent and goes at 12 is nicely quiet pushing lots of air! at 24v it gets niosy and will blow things accross my room. I think for your setup you will need it about 15-24v. Finding a fan like this can be difficult unless you can afford £50 for a fan. This cost me £15. If you want silence I suggest moving your heaterecores (get a bigger one, or two) outside. make some kind of enclosure for them. Get a few high cfm fans which are capable of running in wet environments (costs a bit more) and keeting the rest of your stuf with your computer. I dont know if you would need a biugger pump but I would suggest make it least restrictive possible maybe using the heatercores in parrelell. This should definatly give you some nice temps and also take advantage of the winters cold weather. Last edited by \|kbn\|; 03-31-2004 at 10:34 AM.