Forced Convection Cooling

Forced convection is a type of heat transfer in which an external source (like a fan etc) is used to generate fluid motion and increase the heat transfer.

The most common perception is that higher the flow, higher the forced convection, therefore higher the cooling. This is not true because there are lots of other parameters which determine the amount of forced convection other than the CFM of the fan. One important parameter is the pressure drop across the heat sink. Greater the pressure drop across the heat sink, lower the flow rate for the same fan, therefore lower the forced convection. Therefore, the design of a heat sink is not as straight-forward as it appears to be.

At Noren Products we help you design the most efficient heat sink for your application to maximize the heat dissipated for the same.

Heat Sink Assembly Cooled by Forced Convection