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Yes, this. And you can have some control on the pressure differential with the design of your vents. Higher air velocity isn't going to help cooling too much, what you want is high mass flow (at the critical locations, of course). The answers lie in the pressure vs. flow curves for your fans combined with a rough model of the enclosure resistance, another pressure vs. flow curve.russ_watters said:
The best fan placement for cooling electronics depends on the specific device and its components. However, in general, placing fans near the heat source or in areas with limited airflow can provide the most efficient cooling.
This also depends on the specific device and its components. In some cases, having fans on both the intake and exhaust sides can provide the most balanced and effective airflow. However, if only one fan can be used, it is generally recommended to place it on the exhaust side to pull hot air out of the device.
The number of fans needed for cooling electronics varies depending on the size and components of the device. In general, having multiple fans can provide better airflow and cooling, but it is important to consider the power and noise levels of the fans as well.
Again, this depends on the specific device and its components. In general, larger fans can move more air at a lower speed, making them more efficient and quieter. However, smaller fans can be useful for tight spaces or for targeting specific areas that need cooling.
Yes, improper fan placement can lead to overheating and potentially shorten the lifespan of electronics. It is important to consider the specific cooling needs of a device and properly place fans to ensure its longevity.
