Review on Diffuser Augmented Wind Turbine (DAWT)
| Autor: | Balasem Abdulameer Jabbar Al-quraishi, Akmal Nizam Mohammed, Wisam A. Abd Al-Wahid, Norzelawati Asmuin, Sofian Mohd |
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| Rok vydání: | 2019 |
| Předmět: |
Materials Science (miscellaneous)
02 engineering and technology 010501 environmental sciences 01 natural sciences Turbine Industrial and Manufacturing Engineering Wind speed law.invention law Range (aeronautics) Electrical and Electronic Engineering 0105 earth and related environmental sciences Civil and Structural Engineering Wind power Rotor (electric) business.industry Mechanical Engineering Diffuser (automotive) 021001 nanoscience & nanotechnology Aerodynamic force Mechanics of Materials Alternative energy Environmental science 0210 nano-technology business Marine engineering |
| Zdroj: | International Journal of Integrated Engineering. 11 |
| ISSN: | 2600-7916 2229-838X |
| Popis: | Wind energy technology is one of the fastest growing alternative energy technologies. However, conventional turbines commercially available in some countries are designed to operate at relatively high speeds to be appropriately efficient, limiting the use of wind turbines in areas with low wind speeds, such as urban areas. Therefore, a technique to enhance the possibility of wind energy use within the range of low speeds is needed. The techniques of augmenting wind by the concept of Diffuser Augmented Wind Turbine (DAWT) have been used to improve the efficiency of the wind turbines by increasing the wind speed upstream of the turbine. In this paper, a comprehensive review of previous studies on improving or augmentation power of Horizontal Axis Wind Turbines (HAWT) have been reviewed in two categories, first related with relative improvement of energy by improving the aerodynamic forces that affecting on HAWT in some different modifications for blades. Second, reviews different techniques to the augment the largest possible amount of power from HAWT focusing on DAWTs to gather information,helping researchers understand the research efforts undertaken so far and identify knowledge gaps in this area. DAWTs are studied in terms of diffuser shape design, sizing of investigation and geometry features which involved diffuser length, diffuser angle, and flange height. The conclusions in this work show that the use of DAWT achieves a quantum leap in increasing the production of wind power, especially in small turbines in urban areas if it properly designed. On the other hand, shrouding the wind turbine by the diffuser reduces the noise and protects the rotor blades from possible damage. |
| Databáze: | OpenAIRE |
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