Browsing by Author "Bruneau, Phillippe Roger Paul"
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- ItemThe design of a single rotor axial flow fan for a cooling tower application(Stellenbosch : University of Stellenbosch, 1994-12) Bruneau, Phillippe Roger Paul; Von Backstrom, T. W.; University of Stellenbosch. Faculty of Engineering. Dept. of Mechanical and Mechatronic EngineeringENGLISH ABSTRACT: A design methodology for low pressure rise, rotor only, ducted axial flow fans is formulated, implemented and validated using the operating point specifications of a 1/6th scale model fan as a reference. Two experimental fans are designed by means of the design procedure and tested in accordance with British Standards 848, Type A. The design procedure makes use of the simple radial equilibrium equations, embodied in a suite of computer programs. The experimental fans have the same hub-tip ratio and vortex distribution, but differ in the profile section used. The first design utilises the well known Clark-Y aerofoil profile whilst the second takes advantage of the high lift characteristics of the more modern NASA LS series. The characteristics of the two designs are measured over the entire operating envelope and compared to the reference fan from which the utility and accuracy of the design procedure is assessed. The performance of the experimental fans compares well with both the reference fan as well as the design intent.