Session: 41-03 Small-scale Wind Turbines

Paper Number: 127330

127330 - Investigating Power Augmentation of 1 MW Horizontal Axis Wind Turbine Using Auxiliary Turbines 

To contribute to climate change mitigation, the globe is increasingly in need of developing renewable energy systems. The great efficiency of wind energy devices, as a result of current technical progress, is a big challenge for researchers in providing a huge amount of green energy at the lowest cost compared to traditional energy sources. This paper presents a numerical study to improve the efficiency of a 1 MW horizontal axis wind turbine by making the best use of available space by employing two extra 100KW auxiliary turbines. The proposed design concept is based on putting auxiliary turbines below the primary blade zone on both sides of the tower to catch intruding aerodynamic flow. To solve the Reynolds averaged Navier-Stokes (RANS) equations, the computational fluid dynamics (CFD) ANSYS-fluent program was utilized. Initially, a simple numerical model for a 1 MW horizontal axis wind turbine is created using 3D simulations to approximate performance characteristics such as torque and power coefficients for different TSR values. To obtain the TSR value corresponding to the best power coefficient, the steady-state solution used the Moving Reference Frame (MRF) approach. The proposed design's aerodynamic performance was then investigated using an extra numerical model. The proposed design's dynamic behavior was also studied utilizing a transient model simulation with a sliding dynamic mesh approach. The numerical results of both steady and unsteady simulations revealed that the proposed design increased system efficiency by 15%.

Presenting Author: Ahmed M. R. Elbaz The British University in Egypt

Presenting Author Biography: Ahmed M. R. Elbaz is a Professor in the Department of Mechanical Engineering at the British University in Egypt (BUE), Faculty of Engineering in Egypt.
Energy and fluid dynamics researcher specialized in Computational Fluid Dynamics (CFD).
I have many publications in the field of energy, and now I hope to present my research on wind energy at your prestigious conference.
A selection of my publications can be found at:
https://www.researchgate.net/profile/Ahmed-El-Baz-5

Authors:

Ahmed M. R. Elbaz The British University in Egypt
Ali Shehab Ain Shams University, Cairo, Egypt.