Modelling Design Diffuser Horizontal Axis Wind Turbine

Abstract

The Wind power is one of the promising energy technologies, which can utilize wind energy as a source of renewable energy. So, in this case which a tool is needed, namely a wind turbine, but one of the problems that increase the wind speed in a low wind speed area. It must develop a device to increase the wind speed. Due to this case has been developed to use the Concept of Diffuser Augmented Wind Turbine (DAWT) to control wind speed in low wind speed areas now. With the difference in inlet pressure and outlet pressure, the diffuser is able to increase wind speed. In this case, a design simulation using ANSYS is shown to investigate the Horizontal Axis Wind Turbine (HAWT) performance in low wind speed areas by applying DAWT technology and modifying the diffuser angle. The diffuser angle variation was in the range 4 o -12 o and the diffuser length to diameter (L/D) was in 0.5D -1.0D. The simulation results indicated a similarity with the literature which found the improved power.

Velocity Augmentation Model for an Empty Concentrator-Diffuser-Augmented Wind Turbine and Optimisation of Geometrical Parameters Using Surface Response Methodology

“…However, it was required to support the hierarchy in the model. On the other hand, it is interesting to note that the increase in velocity augmentation ratio with the increase in diffuser length was reported in previous publications [33,36,54,91,93,94].…”

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