Fan System Components

A typical fan system consists of a fan, an electric motor, a drive system, ducts or piping, flow control devices, and air conditioning equipment (filters, cooling coils, heat exchangers, etc.). To effectively improve the performance of fan systems, designers and operators must understand how other system components function as well. The “systems approach” requires knowing …

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The Role of Impeller

A centrifugal blower impeller have backward swept blades, radial tipped blades or forward swept blades as shown in figure: 1.1 below. The inlet and outlet velocity triangles are also shown accordingly in the figure. Under ideal conditions, the directions of the relative velocity vectors Vr1 and Vr2 are same as the blade angles at the …

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