Egee SEP 28 - 13:45 HydroelectricityVeryCheap. Hydropower

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13:45 Hydroelectricity- Very Cheap. Hydropower 1) Significant environmental problems associated with dams 2) Most likely hydropower sites already in use -In result, Hydro provides about 20% of U.S. electricity-probably never get  higher Thomas Edison- First person to attach steam engine to generator Steam Engine - produces reciprocating motion Generator - requires rotary motion -Steamed locomotives solved this problem -Pistons reciprocate motion BUT:     Steam engines are not very efficient Tend to be big, heavy, “clunky” machines Translates into: -Very large fuel consumption----fuel must be carried----restricts space for  cargo or passengers -More cargo on the ship means less room for other things such as  passengers -LESS REVENUE Charles Parsons- Steam Turbine -Uses steam to turn blades of turbine and in so doing, produces mechanical work Ship Propulsion-
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This note was uploaded on 10/18/2010 for the course EGEE 101 at Pennsylvania State University, University Park.

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Egee SEP 28 - 13:45 HydroelectricityVeryCheap. Hydropower

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