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6. Electricity

QuestionAnswer
What are Fossil Fuels? Fossil Fuels are complex Hydrocarbons made from the buried remains of decomposed plants and animals
What source does the US consume the most of energy supply? Natural Gas (Methane)
What source does the Global consume the most energy supply from? Coal
What are the 4 Compenents of a Coal-Fired Powerplant? Burner, Boiler, Turbine & Generator.
What happens in the Burner? Combustion occurs and heat is produced.
What happens in the Boiler? Boils water, converts liquid into gaseous H20, generating steam
What happens in the Turbine? Fan with blades that spin
What happens in the Generator? Electricity is produced through electromagnetic induction.
What is the energy transformation in the Burner? Release the Potential Energy of fossil fuels & turn it into Thermal Kinetic Energy of hot air
What is the energy transformation of the Boiler? Take thermal kinetic energy of hot air and transmit it into Thermal Kinetic Energy of hot water gas molecules (steam)
What is the energy transformation of the Turbine? Convert Thermal Kinetic energy of HOT STEAM into Mechanical Kinetic Energy of spinning turbine blades.
What is energy transformation of the Generator? Mechanical Kinetic Energy of spinning turbine blades convert Mechanical Kinetic Energy of moving Magnet which converts Electrical Kinetic Energy of flowing electrons.
What is the difference between simple cycle and combine cycle? A simple cycle uses only a gas turbine to generate electricity while a combine cycle uses both a gas and steam turbine to generate electricity,
What is the 1st law of thermodynamics? law of conservation; energy cannot be created or destroyed, or transferred or change from one form to another
What is the 2nd law of thermodynamics? Disorder (or entropy) in a closed system always increases over time.
What is the difference between kinetic and potential energy? Kinetic energy is the energy in motion, while potential energy is stored energy due to an objects position or state.
Created by: roberstanley
 

 



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