Experiments with Alternative Energy

摘要

This time, you've learned more of the details surrounding the theory and operation of the Whirlybird wind turbine and why three-phase power is the logical choice for commercial power generation. The Whirlybird is a vertical axis type turbine (VAWT) and its fan is really a "drag" mechanism for capturing the wind. In other words, the fan itself does nothing to amplify the wind's power; it just allows itself to be pulled around by the blowing wind.rnNext time, I'll continue our wind series and introduce you to a model sized, three-phase Horizontal AxisrnWind Turbine (HAWT) that uses propeller blades that provide lift like an airplane wing.