Computational Analyses of Air borne wind Turbines

Le résumé fourni par la source

View Video Presentation: https://doi.org/10.2514/6.2022-1633.vid Airborne wind energy (AWE) regards the generation of usable power by airborne devices. In contrast to towered wind turbines, airborne wind energy systems are either flying freely in the air, or are connected by a tether to the ground, like kites or tethered balloons. It turns out that all airborne wind energy systems with significant power output are mechanically connected to the ground in order to exploit the relative velocity between the air mass and the ground; in fact, to be able to harvest wind power, they need to maintain a strong force against this motion. They can be connected to a stationary ground station, or to another moving, but non-flying object, like a land or sea vehicle. Power is generated in form of a traction force, e.g. to a moving vehicle, or in form of electricity. The three major reasons why people are interested in airborne wind energy for electricity production are the following: 1. First, like solar, wind power is one of the few renewable energy resources that is in principle large enough to satisfy all of humanity’s energy needs. 2. Second, in contrast to ground-based wind turbines, airborne wind energy devices might be able to reach higher altitudes, tapping into a large and so far unused wind power resource. The winds in higher altitudes are typically stronger and more consistent than those close to the ground, both on- and off-shore. 3. Third and most important, airborne wind energy systems might need less material investment per unit of usable power than most other renewable energy sources. This high power-to-mass ratio promises to make large scale deployment of the technology possible at comparably low costs. In Egypt a great challenge in producing electricity is to be faced and that may be because of overpopulation and difficult in connecting electricity to remote places so we thought about design and manufacture airborne wind energy in our graduation project to find a solution to overcome that problem. In this work, it is planned to give brief explanation of the procedures starting with an introduction to wind turbine project, the history, review of all airborne wind turbine types and explain the difference between them. Then the system components are to be explained identifying which materials will be used in the system and which generator will produce the electricity. After that attention will be turned into the aerodynamic equations which will benefit us in blades design and knowledge the suitable NACA airfoil which are to be used. At the final stage a suitable design for the balloon of the present system and implementation all the previous stages in manufacturing stage will be discussed.

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