Abstract

In this paper, dual-fan cooling system model and numerical method are used to investigate the effects of installation angle of blade on the performance of axial flow fan including mass flow rate and noise. The results indicates that with the increasing of installation angle from 40° to 60°, mass flow rate increases and noise performance gets worse. In addition, a comprehensive evaluation method with desired-performance value(DPV) is proposed to evaluate the performance of axial flow fan in different requirements. By changing the installation angle of blade to 48.93°, desired comprehensive performance of fan gets improved.

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