Cooling fan for electronics cabinet
I want to install a small fan for cooling the cabinet that holds the satellite receiver, dvd player and control box. Can someone please point me in the right direction. TIA.
Forum Discussion
Gdetrailer wrote:
You can power a 12V fan from 5V but it is going to run considerably slower than designed. While that is a good thing noise wise, it does a bad thing for actual air movement. These fans get very inefficient when run at a lower speed than designed so a fan rated at 50CFM at 12V running at 5V will result in at the best 20CFM. Same happens when you take a fan that is designed for 240V and run it on 120V, you will get CONSIDERABLY LESS than half the rated CFM.
CORRECT!
When running those fans on 1/2 Voltage you get 1/4 power, ~1/4 fan speed, ~1/4 air movement and 1/4 noise. It's a no-brainer.
Further noise reduction is done by using fans with anti-cavitation blades (whisper fans).
This is frequently done in broadcast and recording studios and the engineers that design this stuff know what they are doing.
