PUSH/PULL config VS Single Fan set-up

[siopao1984]

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it helps sad oie... pero mas atimana ang physics sa airflow sud sa imong casing... cold air sinks, hot air rises... dapat dha naka base imong placement sa air intake/exhaust config... then dapat pud mas kusog imong exhaust kaysa imong intake para negative ang pressure sud sa casing...

+1

2nd the motion

[fearnel]

ahh. ingon ana diay nah.... karon pa sad ko ka sabot anang negative airflow sa case da. dapat diay mas kusog ang exhaust kay sa intake... olrayt.

[jivot_kibot]

i've already tried single fan config on khuler 620 and it doesn't have any changes at all, although i consider what fafnir, said it takes longer time to cool down from full to idle based on OCCT results.
@ archfear i'm already using 1500-2000rpm fans on my exhaust and 1000-1500 rpms on intakes...

[BrianBCBF]

it helps sad oie... pero mas atimana ang physics sa airflow sud sa imong casing... cold air sinks, hot air rises... dapat dha naka base imong placement sa air intake/exhaust config... then dapat pud mas kusog imong exhaust kaysa imong intake para negative ang pressure sud sa casing...

nice ni nga info dah, krn pasad q ani..

[weezur]

2 to 3° and biggest variable for me is room temp so as much as possible I do a comparison test the next day, same time or when ambient is closest from the last test.

and you could always use profiling to set fan speeds to your desired noise threshold. most of the time na ra na sa idle speeds, only time I hear them roar is when stress testing. typical pud na saba/kusog ang included fans sa closed-loop WCS.

[EarlZ]

i've already tried single fan config on khuler 620 and it doesn't have any changes at all, although i consider what fafnir, said it takes longer time to cool down from full to idle based on OCCT results.
@ archfear i'm already using 1500-2000rpm fans on my exhaust and 1000-1500 rpms on intakes...

It could be possible that the fin design on that cooler is already at its limit with a single fan configuration or it could also mean that you need to use a fan that has a higher static pressure which is designed to push air in dense radiator fins. It would be nice to know what fans you are using for this and the physics which was mentioned earlier would barely matter in this case anymore.

[wenkxki]

mga istoryans nice ni nga info da! karon psad ko nka hbaw bahin ani! thumbs up TS and to others nga ni help og broad ani nga discussions!

[JoanaRheyl]

hmmm dapat ba lahi2 ug rpm imong intake and exhaust?
or you can just go same rpm on both?

[EarlZ]

hmmm dapat ba lahi2 ug rpm imong intake and exhaust?
or you can just go same rpm on both?

RPM barely matters at all, its all about the static pressure or CFM depending on the heatsink..

If its very restrictive then you need a very high static pressure so it can push the pair through the fins, if 'good as free flowing' ra ang fins then you need a high CFM fan.

[harhar]

For me positive pressure is better, Silverstone also uses this technique so i recommend it...

Ang naka bati sa negative pressure kay mo sulod sa ventilation sa imung casing ang cold air nga mag dala ug dust pero ang positive pressure kay adto mismo sa intake fan mo agi ang cold air pero just make sure nga naay dust filter imung intake fans ug dapat mas daghan imung intake kaysa exhaust a 3:1 or 4:1 ratio, the 1 is the exhaust fan...