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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL ANALYSIS AND ANALYTICAL PERFORMANCE OF A CENTRIFUGAL FAN THROUGH THE CONSTRUCTIVE ANGLE IMPELLER OUTLET.
Submission Author:
Bruna Beatriz de Paiva , MS
Co-Authors:
Bruna Beatriz de Paiva, Reginaldo Ribeiro Sousa
Presenter: Bruna Beatriz de Paiva
doi://10.26678/ABCM.ENCIT2020.CIT20-0548
Abstract
Several simplified mathematical models are known as design of flow machines, however, the finite element and volume method has helped to design these products, as well as to visualize the flow of the fluid and understand the losses generated by this movement. This work has as main objective to evaluate the performance of a centrifugal fan through the design parameters influenced by the constructive angle of the impeller outlet. The study takes two approaches, the analytical model developed by the Euler Equation and the finite volume method using the ANSYS Fluent Academic software. The results obtained are essential characteristics, mainly to determine the application of a flow machine: hydraulic power, head, flow and the yield curve. These parameters are adapted to three variations of the impeller's constructive exit angle, 20°, 30° and 40° submitted to 10 variations of rotation. The results are exhibit by means of comparative graphs, which the demonstrate a behavior similar to the analytical model. It is possible to validate an interference of the constructive angle of exit, view the behavior of the fluid and find an ideal design point to the proposed model.
Keywords
flow machine, Numerical analysis, analytical analysis, constructive angle
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