1. BTEC Level 3 Applied Science
14/11/2018
Power Plants
BTEC Level 3 Applied Science

2. How do power plants generate electricity?
14/11/2018
How do power plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Keywords – Gravitational Potential Energy, Kinetic Energy

3. Task 1
You are working for an energy company and are investigating the energy transfers for different sources of energy. Produce a presentation describing the different energy types, and include the energy transfers that occur when the following sources are used to provide energy to our homes: solar power, tidal power, coal, nuclear power and wind power.
Explain which is useful energy and which is wasted energy (e.g. Sankey diagram). You should also give the units of the energy types. P6
Learning Objectives
How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems

4. Brain Storm Write down as many types of Power Plant as possible.
What energy type do they utilise?
Learning Objectives
How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems

5. Learning Objectives = How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Thermal Power Plant

6. Energy Conversions
Thermal Power Plants are any plant that uses heat to boil water
Write a description of all of the energy conversions in a Thermal Power Plant
Identify areas where energy is lost
Learning Objectives
How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Keywords – Chemical Energy, Nuclear Energy, Turbine, Generator, Sankey Diagram, Efficiency

7. How does a generator work?
Learning Objectives
How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Keywords – Chemical Energy, Nuclear Energy, Turbine, Generator, Sankey Diagram, Efficiency

8. Energy Efficiency Chemical Energy in 5000 MJ
Electrical Energy out _____ MJ
Energy lost from unused heat MJ
Energy lost from heat in waste gasses 1100 MJ
Draw a scale Sankey Diagram on graph paper
Work out the efficiency of the thermal power plant
Learning Objectives
How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Keywords – Chemical Energy, Nuclear Energy, Turbine, Generator, Sankey Diagram, Efficiency

9. Sankey Diagram
Learning Objectives
How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Keywords – Chemical Energy, Nuclear Energy, Turbine, Generator, Sankey Diagram, Efficiency

10. Other Power Plants
Draw flow diagrams and write a passage about energy transfers for the following Power Plants
Give advantages and disadvantages for each. Research the efficiencies for each.
Coal
Nuclear
Wind
Solar (Electrical)
Tidal
Learning Objectives
How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Keywords – Chemical Energy, Nuclear Energy, Turbine, Generator, Sankey Diagram, Efficiency

11. Learning Objectives = How do Power Plants generate electricity?
P6 Describe different types of energy transfer
M3 carry out a practical demonstration of a range of energy interconversions with appropriate explanations of the systems investigated
D3 Evaluate the efficiencies of energy conversion systems
Nuclear Power Plant

12. 14/11/2018
Be able to investigate different types of energy and their transfer
Types of energy: mechanical (kinetic and potential); chemical; thermal; electrical
Examples of energy transfer: metabolism, potential to kinetic, generation of electrical energy; thermal energy from fuels; nuclear energy to electrical energy
Measurement of energy: units; use of the calorimeter, efficiencies of energy transfer