An active noise control system has previously been developed for the reduction of tonal noise radiated by small axial cooling fans, such as those found in desktop computers. This system uses four small actuators surrounding the fan in a mock computer casing. Due to industry volume constraints, a smaller fan and speaker configuration is desirable. If the smaller configuration is able to maintain...

In this paper, the multi blade centrifugal fan parameter CAD/CFD was developed. Before treatment with the traditional design method as the foundation, use AutoCAD as development of the embedded language. The work of this regulation to establish a set of more perfect design and optimization program of axial flow fan in air, improve its economy, and provided a shortcut for energy saving and noise...

This study reports on a modeling strategy for large Air-Cooled Condensers (ACCs). A 64-fan ACC was modeled under various crosswind conditions that investigated the ACC’s specific axial flow fan configuration. The model developed in two parts, an and heat exchanger model. fans were using Actuator Disk Model (ADM). exchangers’ pressure drop Darcy-Forchheimer porosity model, Effectiveness Number o...