Cooling capacity on 480mm XE EKWB rad with 3000RPM fan

[TheNaitsyrk]

I was just wondering as some rads are rated for 1800W and they are 420mm.

 

Any ideas?

[For Science!]

4 hours ago, TheNaitsyrk said:

I was just wondering as some rads are rated for 1800W and they are 420mm.

 

Any ideas?

Radiator ratings are meaningless (perhaps outside of comparisons within a brand and their numbers) much like the static pressure rating of a fan. Radiator performance changes with so many factors, especially the delta between the internal coolant temperature and the ambient temperature.

 

The cooling performance depends on fan speed (airflow), coolant flow rate, temperature delta. So you can see down here the cooling ability of the XE360 can range between 176 W/10degree to 498 W/10degree (i.e.  176-498 watts is required to increase the coolant temp by 10 degrees)

https://www.xtremerigs.net/2015/05/31/ek-coolstream-xe-360mm-radiator-review/4/

[Maticks]

7 hours ago, TheNaitsyrk said:

I was just wondering as some rads are rated for 1800W and they are 420mm.

 

Any ideas?

The usually rule is 2x140mm per device cooling. 180mm vs 140mm is going to depend on fin density of the rad and static pressure capability of the fan.

 Depending what you are cooling air delta that will determine the rpm of your fans.

 

In theory the more area sinking heat the better cooling. Probably need to tell us what you are cooling.

 

i has a 480 monsta in one my systems it was so big and thick it could passively cool my system. It was overkill for the components at the time.

Settled on a 600rpm fan profile.

 

 

[MaratM]

if you increase fan speed up to 3000 rpm and deltaT to 20C it is probably possible, but what on earth you going too cool with such cooler? A RTX 3090 mining farm? 3000RPM fans are very loud then running at max speed.

[Mick Naughty]

420mm is average rig stuff. Don’t you already have dual 480’s or something?

[TheNaitsyrk]

2 hours ago, MaratM said:

if you increase fan speed up to 3000 rpm and deltaT to 20C it is probably possible, but what on earth you going too cool with such cooler? A RTX 3090 mining farm? 3000RPM fans are very loud then running at max speed.

I was just wondering for the sake of me knowing rather what my purposes are.

 

This post is only for my information only. I was only curious why BlackIce 420mm rad same thickness as EKWB one is rated at 1800W and EKWB one is 957W or 1190W or so whilist EK one is bigger. Just wanted to see if faster RPM = better W dissipation and if it can be measured in meaningful way.

[MaratM]

25 minutes ago, TheNaitsyrk said:

I was only curious why BlackIce 420mm rad same thickness as EKWB one is rated at 1800W and EKWB one is 957W or 1190W or so whilist EK one is bigger. Just wanted to see if faster RPM = better W dissipation and if it can be measured in meaningful way.

Unless you can create a constant and regulated thermal load on the Cooling system it is almost impossible. even if you do so you will have to eliminate one  of the 3 variables: Fan speed, DeltaT, Rad properties (fin area, density restriction and so on)

I think it is all marketing BS. The difference between these 2 rads is minimal and the results published by the manufacturer is not good for fair comparison. 

All I can really tell is my 240-60mm barrow rad can cool my overclocked flashed vega56 into 64 and 9400F which both produce up to 450 watts (according to HWinfo and GPUz) of heat with deltaT of around 15-16C and fan speed of 2000rpm on Noctua NFA12X25. Thus the reasonable figure is around 1000watts for a 480 "thick" rad.

If deltaT is increased it can handle more, If fan speed increased it will handle even more.

Here is some research made by Thermalbench.com both of them look more a less the same.

http://thermalbench.com/2016/11/22/hardware-labs-black-ice-nemesis-gtr-480-radiator/5/

http://thermalbench.com/2015/06/07/ek-coolstream-xe-480mm-radiator/5/

[TheNaitsyrk]

18 minutes ago, MaratM said:

Unless you can create a constant and regulated thermal load on the Cooling system it is almost impossible. even if you do so you will have to eliminate one  of the 3 variables: Fan speed, DeltaT, Rad properties (fin area, density restriction and so on)

I think it is all marketing BS. The difference between these 2 rads is minimal and the results published by the manufacturer is not good for fair comparison. 

All I can really tell is my 240-60mm barrow rad can cool my overclocked flashed vega56 into 64 and 9400F which both produce up to 450 watts (according to HWinfo and GPUz) of heat with deltaT of around 15-16C and fan speed of 2000rpm on Noctua NFA12X25. Thus the reasonable figure is around 1000watts for a 480 "thick" rad.

If deltaT is increased it can handle more, If fan speed increased it will handle even more.

Here is some research made by Thermalbench.com both of them look more a less the same.

http://thermalbench.com/2016/11/22/hardware-labs-black-ice-nemesis-gtr-480-radiator/5/

http://thermalbench.com/2015/06/07/ek-coolstream-xe-480mm-radiator/5/

Good enough answer, helps a lot. Thanks a bunch! 

 

XE 480 from EK almost tops the charts usually so good enough for me.

 

Thanks.