How to select a suitable cooling fan?
Time：2014-10-16
The need for forced-air cooling should be determined at an early stage in system design.It is important that the design plans for good airflow to heat-gen-erating components and also allows ade-quate space and power for cooling fan.Factors to be considered in fan selection include:Required airflow.AC OR DC power.Voltage,Speed,Life expectancy,Heat dissipation,Impedance protected and audible noise.
The airflow required can be obtained using an equation for calculation where:Q=1.76W/Tc
Q=Airflow required in cfm(ft3/min)
W=Heat dissipated in watts
TC=Allowable temperature rise in °C(TC=T1-T2)
For example,32CFM of airflow is required
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