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This paper describes the effect of shape parameters of perforated plates on the flow resistance of the perforated plate used as a vent plate or the cover in electronic equipments. In this study, we focused on the effect of hole shape and opening state of outer edge as the shape parameters of perforated plate. The study was focused on natural air cooled electronic equipments. In this study, in order to demonstrate the effect of hole shape as accessible value for design engineers, the design of experiment (DoE) method was used to design the experimental sample perforated plates. The effect of outer edge was evaluated by comparing the flow resistance of perforated plates with hole on outer edge and the perforated plates without hole on outer edge. In addition, to present the flow resistance data as thermal design information, the flow resistance data obtained in this study was arraneed by empirical formula.

journal of environment and engineering

Effect of Shape Parameters on Flow Resistance of Perforated Plates and the Flow Resistance Characteristic for Design of Natural Air Cooled Electronic Equipment