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Related Flashcards
Cards In This Set
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Generators are machines that convert ____ energy into _____ energy.
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Mechanical / Electrical
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The electricity that a power plant produces is measured in ______.
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Watts
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What does a substation do?
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Combine electricity from several sources into one location.
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One power company is often connected to another by ______.
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Tie-lines
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What does a load dispatcher (system control) do?
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Predicts the demand for electricity.
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The ____ of power much always equal the _____ for power.
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Supply / Demand
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A hydroelectric plant uses mechanical energy from ____ to turn a generator.
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Water
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List the 3 components of a fossil fuel plant where energy conversions take place.
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Boiler
Turbine
Generator
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In a fossit fuel plant, ____ & ____ energy in steam are converted to mechanical energy in a turbine.
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Pressure and thermal
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List 2 disadvantages of fossil fuel plants.
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Cost of the fuel
Plants are more complicated.
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Why are fossil fuel plants the major source of electric power today?
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Greater flexibility in choosing location of plant and plant can be sized for whatevery output is necessary.
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For proper combustion to take place, the boiler needs a continuous supply of ____ & ____.
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Air & Fuel
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In a typlical coal burning plant, coal is transported to the plant by a conveyor system and then fed into a ______, where is is ground into a fine power.
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Pulverizer
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A large heat exchanger that is part of the steam cycle is the ____.
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Condenser
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What does the condensate-feedwater system do?
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The condensate-feedwater system completed the steam cycle by sending condensate from the Hotwell back to the boiler.
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