What does split fin design mean in radiators?

CerealBox21

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Jan 30, 2015
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The radiator I'm looking at EK-CoolStream PE 480 (Quad) it is 40mm thick and the FPI is 19 (split fin). What does split fin mean? Is that better for cooling? Does it mean my fans will have to run at higher rpm in order to dissipate heat through the fins making it noisier? Thanks.
(I apologize if you've seen this twice, the first time I posted it it got put in the the wrong forum category. I wasn't sure how to change it)
 
Solution
Fins increase the surface area of the heat sink, which increases the heat sink's ability to transfer heat by convection. Split fins may be at least partially curved, splitting into a plurality of tines that extend away from the core.

Basically split fins provide greater surface area for the heat to escape from.

1) Yes, that is better for cooling

2) No, your fans won't have to run faster because of this
Fins increase the surface area of the heat sink, which increases the heat sink's ability to transfer heat by convection. Split fins may be at least partially curved, splitting into a plurality of tines that extend away from the core.

Basically split fins provide greater surface area for the heat to escape from.

1) Yes, that is better for cooling

2) No, your fans won't have to run faster because of this
 
Solution


Thank you 😀
 


I am getting two EK-CoolStream PE 480 (Quad) radiators. Are the EK-Vardar F2-120 (1450rpm) high static pressure fans going to be good for a rad such as this one? I'm looking for something to keep things cool and quiet. Some people are saying they wouldn't be, more others say they will be. What are your thoughts? People keep telling me different things and I just want a straight answer.
 

I did that and some guy posts this really long message about the vardar and how because the radiator is split fin design it's really 38 fpi and that's not good. Just look at the reply he sent on my most recent post and see how confusing it is. I want to have the best right away for a first time custom loop and I think I've done that.
 


Ok thanks, that other guy must have just been spewing crap. I asked him to simplify what he meant and he did nothing of the sort so I'm going with the people who actually have experiment, research, and experience with the fans. Thanks.