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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
21.08.2014 - Overclockers.ru NH-D15
Test verdict: "Да, предыдущая версия NF-D14 до сих пор выглядит неплохо, но уже устарела и уступает новинке, так что если вам нравился D14, то и D15 обязательно понравится." (Антон Александрович, Overclockers.ru)
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21.08.2014 - kingdomgame NH-D15
Test verdict: "Noctua Ť leader nella dissipazione per processori e si vede! Con la sua nuova punta di diamante Ť riuscita a portare avanti la reputazione che l'NH-D14 si era conquistata meritatamente!" (Andrea Megna, kingdomgame.it)
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20.08.2014 - hwmind.it NF-F12 industrialPPC-2000 PWM
Test verdict: "I prodotti Noctua da sempre sono sinonimo di eleganza, resistenza e qualitŗ, ed attraverso questo esame non possiamo far altro che riconfermare." (La Scuola Salvatore, hwmind.it)
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19.08.2014 - [blank],s Universe NF-F12 industrialPPC-2000 PWM
Test verdict: "Noctua Industrial PPC fans are a must buy for people who have to constantly replace their fans due to dust or debris entering and damaging the fans. They are also suited for users who want the performance and silence of a Noctua fan, but want it in black." (Martin Tam, [blank]'s Universe)
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