Engineering Fundamentals: An Introduction to Engineering, 4th ed.c

13.6 Energy Sources, Generation, Consumption 407

■Figure 13.33

Schematics of a vertical axis and

a horizontal axis wind turbine. Vertical axis

Gear box Generator

Gearbox

Hub Generator

Rotor

blade

Horizontal axis

Rotor

blade

■Figure 13.32U.S. wind resource map.

Source:Courtesy of DOE /NREL

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