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Nine Blade Design

Many 140x140x25mm axial fans tend to suffer from low static pressure, making them less suitable for use on CPU coolers or watercooling radiators with tight fin spacing. The NF-P14 on the other hand features a highly optimised nine blade impeller design thatís following in the footsteps of Noctuaís successful NF-P12 and has been carefully fine-tuned for both airflow/noise efficiency and outstanding static pressure. As a result, the NF-P14 lends itself not only to use as a case fan but also to high-impedance applications like CPU cooling.

NF-P14 Blade Design


Thanks to the use of Vortex-Control Notches, an advanced design measure first introduced with the NF-P12 fan, the NF-P14 is surprisingly quiet despite of its impressive airflow and pressure performance. The two Vortex-Control Notches at the trailing edge of each blade make the flows along the suction and pressure side mix more smoothly, allowing for less turbulence and velocity loss, which leads to increased efficiency as well as a significant reduction in noise emission.

NF-P14 Blade Design


Vortex-Control Notches not only allow the flows to join less abruptly at the trailing edge, but also serve the purpose of psychoacoustic optimisation by making the fanís acoustic profile more pleasant to the human ear: Due to the Vortex-Control Notches, trailing edge vortices are split up into several smaller vortices, each having slightly different tonal characteristics. The fanís airflow noise is thereby spread over a wider range of frequencies and, as a result, perceived as much less annoying.

NF-P14 Blade Design


The Vortex-Control Notches' effect of psychoacoustic optimisation is further enhanced by the staggering of the notches. As the Vortex-Control Notches are staggered from blade to blade, each blade creates a different vortex pattern, which also helps to better spread the fan's noise emission over the frequency spectrum and thereby contributes to the fans unobtrusive acoustic profile that easily blends into the background noise.

NF-P14 Blade Design



More information:
button  120mm & 140mm Mounting
button  NF-P14 Metal Reinforcements




Noctua
15.09.2014 - WCCFtech.com NH-D15
Test verdict: "The Noctua NH-D15 retails for $99 US and is the perfect choice for enthusiasts and desktop PC users who want the high performance in the air cooling market." (Hassan Mujtaba, WCCFtech.com)
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13.09.2014 - PC Ekspert NF-F12 industrialPPC-2000 PWM
Test verdict: "Zasebno ih nećemo ocjenjivati a možemo samo zaključiti kako obje serije zaslužuju visoke ocjene i svaku preporuku." (Krešimir Matanović, PC Ekspert)
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12.09.2014 - Hardware-360 NF-F12 industrialPPC-2000 PWM
Test verdict: "Both the NF-F12 and NF-A14 IndustrialPPC fans from Noctua receive the Hardware 360 Editorís Choice award." (Ron Perillo, Hardware-360)
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12.09.2014 - Modders-Inc.com NF-P14s redux-1500 PWM
Test verdict: "Overall, Noctuaís redux fans easily stand-out from the rest of the market because of their high build quality and new sexy gray color scheme. Utilizing proven Noctua technology offered at a lower price point with the same long warranty as the current Noctua retail crop, the redux series is a must-have for those looking for silent cooling solutions." (Ron Perillo, Modders-Inc.com)
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