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Nidec Blowers

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Breadfan

Inactive Moderator
Joined
Jan 4, 2001
Location
Northern VA
Rob posted a very interesting article on how he used the Nidec 9cfm squirrel cage blowers from Radio Shack to cool his Celery.

It raised a few questions, questions I keep having, but never realy ask.

For a while now, actually ever since Hoot's cohesive air article, I've always been on the passive lookout for blowers that are DC and have decent CFM. It seems that I either find things such as the 9cfm Nidecs or 30000cfm powerhouses! :) Ok, maybe not THAT many cfm, but you get the point!

I THINK i might recall seeing some sub 30cfm blowers from grainger...but nothing above that without getting something like a 200cfm blower. I believe they even had one that was DC.

Considering that the air delivery is so much better and so much more "direct" to the cpu's core, as in no axial air patterns and no dead spot over the CPU, is there any estimate as to what CFM a blower would have to be to equal, say, a Delta38?

For instance, is 27cfm of blower air going to be as efficient as 38cfm from a Delta?

I hope we see more blowers in the future. It's obvious they work better and are quieter than their axial cousins. But so hard to find in the cfm we might look for to mount directly on a heatsink!

Maybe I just need to look for those sub 30cfm blowers again and pick one up and see how it compares...the problem is, I don't think even 2 of those 9cfm Nidecs will do much for my Thunderbird at 1365.... :)

Mike
 

Sonny

Senior TIFOSI
Joined
Aug 3, 2001
Location
VARIANTE ASCARI
There must have been a typo. Having just 9CFM is not enough or is it given the right amount of pressure? I hope that centrifugal blowers become more of a mainstream product because they are just more efficient in moving air even if the packaging can be a challenge compared to the fans that we use now.
 
OP
Breadfan

Breadfan

Inactive Moderator
Joined
Jan 4, 2001
Location
Northern VA
Each one is only 9cfm, but looking at the pic he seems to have two installed, or 18cfm. But, he says this seems to work as well as the Thermaltake's 80mm fan @4500rpm. Hmm...I wonder how different the mobo cooling is with cohesive vs. axial cooling...like, does cohesive air chill the mobo more cuasing lower temp

Mike
 

Diggrr

Underwater Senior Member
Joined
Nov 29, 2001
I read a thread here that said Dell of all places is making a blower for their chips. With the tighter and tighter fin/pin patterns on heatsinks, you'd think someone would be smart enough to step in and make a strap on replacement with an 80mm's bolt pattern.

I love blowers over axial's anyday, but can't ever find the right one.
 

Sonny

Senior TIFOSI
Joined
Aug 3, 2001
Location
VARIANTE ASCARI
Did a little bit of reading about centrifugal blowers & found something;


BD5015 SERIES 50x50x15mm

BD5015.jpg


Airflow: 4.80 CFM

Static Pressure: 23.70 mm-H2O

Voltage Available: 12 VDC




FD1238 SERIES 120x120x38mm

FD1232.jpg


Airflow: 135.00 CFM

Static Pressure: 8.60 mm-H2O

Voltage Available: 12 VDC



What do you think Breadfan?