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This book provides the fundamental concepts required for the development of an efficient small-scale wind turbine. For centuries, engineers and scientists have used wind turbines of all shapes and sizes to harvest wind energy. Large-scale wind turbines have been successful at producing great amounts of power when deployed in sites with vast, open space, such as in fi elds or in offshore waters. For environments with limited space, such as dense urban environments, small-scale wind turbines are an attractive alternative for taking advantage of the ubiquity of wind. However, many of today's tools for aerodynamic design and analysis were originally developed for large-scale turbines and do not scale down to these smaller devices. Arranged in a systematic and comprehensive manner, complete with supporting examples, Wind Energy Harvesting: Micro- To Small-Scale Turbines is a useful reference for undergraduate and graduate level classes on energy harvesting, sustainable energy, and fl uid dynamics, and an introduction to the field for non-technical readers.

Wind Energy Harvesting: Micro-to-Small Scale Turbines

1. Introduction
        Current State of Wind Energy
        Energy Policies for Wind Energy

2. Background on Wind Turbines
        Large vs. Small Scale Wind Turbines
        Need for Small Scale Wind Turbines
       Challenges with Small Scale Wind Turbine Design

3. Components of Small Scale Wind Turbine
        Rotor
        Drive Train
       Generator
       Auxiliary Components

4. Betz and Schmitz Law for Wind Power Prediction
      Betz Law
      Blade Losses
      Schmitz Law and Rotational Wake

5. Small Scale Wind Turbine Blade Design
      Blade Element Momentum Theory
      Development of Design Tool using BEM Theory
      Use of Computational Fluid Dynamics in Rotor design

6. Diffuser Augmented Small Scale Wind Turbine
      Need for Diffuser Augmented Small Scale Wind Turbine
      Flow inside the Diffuser
      Diffuser Design Optimization
      Pros and Cons

7. Application Areas of Small Scale Wind Turbines
     Bridge Health Monitoring System
     Carry-on Wind Mills
     Remote Applications

8. Non-Conventional Wind Energy Harvesters
     Vibration based Wind Energy Harvesters
     Piezoelectric Wind Turbine
     Some Other Examples