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Do 200mm fans ever really work well as intake fans? - Page 6

post #51 of 67
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No foul, just sayin'...
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post #52 of 67
Thread Starter 
Quote:
Originally Posted by claes View Post

@8051, I imagine Doyll is talking about consumer PC fans, where manufacturer specifications rarely line up with measured performance. Obviously industrial fans built for enterprise use have higher standards for accuracy, but if you take most of the fans tested in the images above and compare measured CFM to specifications you'd find some significant difference.

That said, anyone could've clarified this long ago. Why no one bothered to earlier is sort of a pathological problem this website has with inverse trolling.

He never stated it only applied to consumer fans. I believe Sunon, SanAce and Delta provide full disclosure as to the methods by which they test their fan specifications as well as the equipment used.
post #53 of 67
Quote:
Originally Posted by 8051 View Post

He never stated it only applied to consumer fans. I believe Sunon, SanAce and Delta provide full disclosure as to the methods by which they test their fan specifications as well as the equipment used.
If you are referring to me, I never said it applied to applied to commercial fans in any way shape or form. Sunon, SunAce, Delta, Nidec-servo, etc all give good data. Any time I've wanted to see a P/Q curves for one of their fans it's been available.

It seems you have a problem understanding English. You missed or misinterpreted many of the replies to your posts;
#28 8051 "I had thought that for exhaust fans, static pressure wasn't as important as CFM?"
#29 doyll in part: "Fan specificatons are rather meaningless.
Functional airflow is the amount of air a fan can move against resistance.
Fan specifications:
Static pressure rating = the pressure level a fan reaches when air stops moving (resistance stops airflow).
Airflow rating = amount of air fan moves in free airflow (like a ceiling fan does .. no resistance at all).
"
#30 8051 you went off on the "Fan specifications are rather meaningless." without understanding what I was saying.
#31 ciarlatano in part "doyll is very obviously referring to the open air specs with no regulated testing procedures"
#32 doyll in part " Delta and SanAce are industrial fan companies and industrilal fans specifications are very different from consumer fan specifications. Their testing is based on in-use applications, not airflow when mounted in open space at full speed airflow or pressure made when flowing no air." and supplied graphs showing how consurmer fans cfm and mmH2O rating are misleading.
#33 8051 repllies to ciarlatano saying I was referring to consumer not commercial fans "I didn't make the statement fan specifications were "meaningless", a statement which is obviously patent BS."
Which all seems to show you did not understand what either of us was trying to say.
You did not seem to understand any of what others and myself were saying about fan cfm and mmh2o specifications having little meaning as to how well the fan would perform in actual use.

I'm sorry if I offended you. I was only trying to explain how fan specifications do not accurately show us what their airflow will be in actual use, especially consumer fans.
Edited by doyll - 10/5/16 at 4:33am
post #54 of 67
Quote:
Originally Posted by Gilles3000 View Post

ROFL
post #55 of 67
Quote:
Originally Posted by Gilles3000 View Post


Awwww! wubsmiley.gif
     
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post #56 of 67
Quote:
Originally Posted by 8051 View Post

He never stated it only applied to consumer fans. I believe Sunon, SanAce and Delta provide full disclosure as to the methods by which they test their fan specifications as well as the equipment used.

Yes, yes they do. But do you know what none of them provide? A 200mm fan relevant to this thread. Sunon and Delta don't show 200mm fans in their catalog, and San Ace only makes one that is 70mm thick.

It would stand to reason that @doyll was speaking in the context of fans that are even remotely applicable to the context of the thread. On the other hand, you are talking about fans that have absolutely nothing to do with the conversation. It has about as much to do with @doyll's statement as someone saying "the specs do matter, look at the Honda Valkyrie and tell me specs don't matter!!!!!!". You are dragging apples (and non-existent apples, at that) into a conversation about oranges.

How you people turn a question about BitFenix/Cooler Master/NZXT 200mm fans into an argument about specs of non-existent industrial fans is beyond me. Ridiculous.
post #57 of 67
This thread so much pain so hurt
Quote:
Originally Posted by 8051 View Post

He never stated it only applied to consumer fans. I believe Sunon, SanAce and Delta provide full disclosure as to the methods by which they test their fan specifications as well as the equipment used.
Oh, wow - I was happy to empathize with your misunderstanding before but now you're just beating a dead horse to pick a fight
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post #58 of 67
Quote:
Originally Posted by claes View Post

This thread so much pain so hurt
Oh, wow - I was happy to empathize with your misunderstanding before but now you're just beating a dead horse to pick a fight

"Now" in that context would imply a new development, whereas this has been the issue since the start.
post #59 of 67
Meh, hostility all around IMO. Why you're all so mad is beyond me.
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post #60 of 67
Quote:
Originally Posted by claes View Post

Meh, hostility all around IMO. Why you're all so mad is beyond me.

I'm not mad. I'm amazed that a question about mainstream 200mm fans has turned into an argument about imaginary industrial fans, but I'm not mad. wink.gif
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