Energy and Power Foundations of Technology Energy and Power © 2013 International Technology and Engineering Educators Association STEM  Center for Teaching.

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Foundations of Technology Energy and Power 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology Teacher Resource Unit 3 Lesson 1 STEMCenter for Teaching and Learning The BIG IdeaBig Idea: Advancements in the processing and controlling of energy have been an enabling factor in the development of technology. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsThere are four laws of thermodynamics that help to define things like energy, the flow of energy, and temperature.Each law helps to define how these physical properties behave as well as to determine what is and is not possible. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsZeroth Law of ThermodynamicsHelps to Define Temperature If each of two systems is equal to a third, then the first two are also equal. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsThe First Law of Thermodynamics:The Law of Conservation of Energy Energy can neither be created nor destroyed, however energy can flow from one form to another. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsThe First Law of Thermodynamics:Internal Energy and the Relationship to Temperature If a system has a temperature, then the total energy of the system has three partskinetic energy, potential energy, and internal energyand as the internal energy increases, so does the potential energy. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsThe First Law of Thermodynamics:Heat Flow is a Form of Energy Transfer Heat that flows from a hot system to a cold system can be expressed as energy transfer. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsThe First Law of Thermodynamics:When a tool/machine moves an object, the object absorbs some of the energy from the tool/machine.Performing Work is a Form of Energy Transfer Work is equal to the force you exert and the distance an object moves.W = F X D 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsThe Second Law of Thermodynamics Energy Flows Away From its Source Energy or heat cannot move from a cold system to a hot system, and you cannot continually produce work without adding energy because energy flows away from its source. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologySource 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsThe Third Law of ThermodynamicsAs a System Approaches Absolute Zero, Energy is Not Produced Molecules cease to move as temperatures reach absolute zero, thus energy is not produced. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsQuick Review:The Zeroth Law helps to define temperature.First Law of Thermodynamics discusses:Law of Conservation of EnergyInternal Energy and the Relationship to TemperatureHeat Flow is a Form of Energy TransferPerforming Work is a Form of Energy Transfer 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyThermodynamicsQuick Review:The Second Law of Thermodynamics states that energy flows away from its source.The Third Law of Thermodynamics states that as a system approaches absolute zero, energy is not produced. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyHow Energy is Generated 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyPower SystemsAll Power Systems have a source of energy, a process, and a load.Using the previous example of Coal: 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyForms of EnergyThere are six major forms of energy:Thermal or heat, the vibration/movement of atoms within systems. Radiant or light, the electromagnetic energy that travels in transverse waves.Electrical energy made available by the flow of an electric charge through a conductor. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyForms of EnergyThere are six major forms of energy:Mechanical energy stored in the movement of objects or systemsChemical energy stored in the bonds of atoms and molecules (examples: biomass, petroleum, natural gas, and coal)Nuclear energy stored in the nucleus of an atomthe energy that holds the nucleus together 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyRenewable Vs. Non-RenewablePower plants generate electricity from various energy resources. Energy sources can be classified as: 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyRenewable:WaterWindSolarNon-Renewable:Fossil FuelsUranium 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyRenewable EnergyRenewable energy is energy that comes from natural resources like water, wind, and solar. Hydroelectric power plants use the downward flow of water to turn the blades of a turbine. Wind works similarly; as wind blows, it turns the blades of a turbine. Solar power plants generate electricity by converting the radiant energy from sunlight to electrical energy.Renewable energy accounts for 17% of the worlds energy sources. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyNon-Renewable EnergyNonrenewable resources are resources that are limited or fossil fuels, like coal, oil, and natural gas.Fossil fuels provide around 81% of the worlds electrical power.However, oil and coal power plants produce harmful environmental emissions. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyNon-Renewable EnergyNuclear power is also considered a nonrenewable energy source.Nuclear power is generated using uranium and produces around 3% of the worlds energy needs.The heat generated from fission when atoms split releases heat energy which produces steam and turns the blades of a turbine. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyEnergy Flow DiagramsThere are two common diagrams used to show the flow of energy within any system:Sankey DiagramFlow DiagramBoth are used to show what is happening to a particular type of energy as it is used or changed in a process or situation. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyEnergy Flow DiagramsA Sankey Diagram shows the type of energy that goes into a system and how the energy is converted, which also includes wasted energy, usually in the form of heat. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologyEnergy-Flow DiagramsA Flow Diagram depicts how energy moves through a system and includes the type of energy and how that energy is generated and stored.The example to the right shows how energy moves through a Hybrid Car. 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of Technology 2013 International Technology and Engineering Educators Association STEMCenter for Teaching and Learning Foundations of TechnologySTEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSlide #*TITLE SLIDE12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International 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