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

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

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

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

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

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

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

Energy Efficiency Chemical Energy in 5000 MJ Electrical Energy out _____ MJ Energy lost from unused heat 2000 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

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

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

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

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