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Teaching about Hydrogen Fuel Cells Maia Willcox SEPUP Lawrence Hall of Science – UC Berkeley NSTA Regional Conference - Seattle December 10, 2011 SCHATZ.

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Presentation on theme: "Teaching about Hydrogen Fuel Cells Maia Willcox SEPUP Lawrence Hall of Science – UC Berkeley NSTA Regional Conference - Seattle December 10, 2011 SCHATZ."— Presentation transcript:

1 Teaching about Hydrogen Fuel Cells Maia Willcox SEPUP Lawrence Hall of Science – UC Berkeley NSTA Regional Conference - Seattle December 10, 2011 SCHATZ ENERGY RESEARCH CENTER

2 Please fill out the blue contact form.Please fill out the blue contact form. SEPUPMaia WillcoxSEPUPMaia Lab-Aids Mark KokerLab-Aids Mark Koker Booth #512 Curriculum Website: sepuplhs.org/hydrogenCurriculum Website: sepuplhs.org/hydrogen Contact Information

3 Funded by U.S. Dept of Energy Funded by U.S. Dept of Energy “Introduction to Alternative Energy: Hydrogen & Fuel Cells” “Introduction to Alternative Energy: Hydrogen & Fuel Cells” Developed by a team of scientists, engineers, curriculum developers, teachers, and other educational leaders Developed by a team of scientists, engineers, curriculum developers, teachers, and other educational leaders Development process includes extensive classroom testing and feedback Development process includes extensive classroom testing and feedback High School Chemistry (or Physics & Envi. Sci.) High School Chemistry (or Physics & Envi. Sci.) Hydrogen Technology and Energy Curriculum

4 Teachers and students from SF Bay Area, Washington, Ohio, California, Connecticut, Georgia, New York, and South Carolina Partners

5 Engages students in learning science and applying it to make evidence-based decisions.Engages students in learning science and applying it to make evidence-based decisions. In most cases, does not advocate a particular decision, but does advocate the use of scientific evidence and concepts in the decision-making process.In most cases, does not advocate a particular decision, but does advocate the use of scientific evidence and concepts in the decision-making process. Encourages students to look at various sides of an issue and evaluate the trade-offs involved in a complex decision.Encourages students to look at various sides of an issue and evaluate the trade-offs involved in a complex decision. Issue-Oriented Science

6 How can we transport ourselves in a sustainable fashion?

7 Part of our future energy picture? Hydrogen Electric Power Transportation

8 Activity #1: Hydrogen for Transportation?

9 Hydrogen is the most common element in the universe.Hydrogen is the most common element in the universe. The sun is composed mostly of hydrogen gas.The sun is composed mostly of hydrogen gas. Where is hydrogen found on Earth?Where is hydrogen found on Earth? Hydrogen occurs naturally as a component of water and hydrocarbon fuels like coal, oil and natural gas.Hydrogen occurs naturally as a component of water and hydrocarbon fuels like coal, oil and natural gas.Hydrogen

10 Reformer Electrolyzer How do we get Hydrogen? Hydrocarbon + Heat Hydrogen + CO 2 Water + Electricity Hydrogen + Oxygen

11 What do we do with Hydrogen? A way to store energy (like a battery)A way to store energy (like a battery) A way to move energy (like electricity)A way to move energy (like electricity) NOT an energy source and NOT freeNOT an energy source and NOT free H2H2 H2H2 Storage Internal Combustion Engine Internal Combustion Engine Fuel Cell Electric Motor Kinetic Energy

12 Fuel Cell Electrochemistry – Redox Reactions PEM membrane H 2 (g) O 2 (g) e-e-e-e- What happens on H2 side? O2 side?What happens on H2 side? O2 side? Where does oxidation occur? Reduction?Where does oxidation occur? Reduction? Which side is anode? Cathode?Which side is anode? Cathode? H+H+H+H+ H2OH2OH2OH2O

13 Activity #4: Modeling the Fuel Cell Reaction

14 Now use the puzzle pieces to model what happens in the fuel cell. Modeling the Fuel Cell Reaction

15 12 3

16 The half-reactions:The half-reactions: Oxidation:H 2  2H + + 2e -Oxidation:H 2  2H + + 2e - Reduction:4H + + O 2 + 4e -  2H 2 OReduction:4H + + O 2 + 4e -  2H 2 O Adding the half-reactions:Adding the half-reactions: Oxidation:2H 2  4H + + 4e -Oxidation:2H 2  4H + + 4e - Reduction:4H + + O 2 + 4e -  2H 2 OReduction:4H + + O 2 + 4e -  2H 2 O _________________________________________ _ 2H 2 + O 2  2H 2 O + energy (electricity) Student Activity The Fuel Cell Half Reactions

17 Fuel Cell Parts – Form and Function

18 Modified polyethylene hydrocarbon chainsModified polyethylene hydrocarbon chains Fluorine substitutions create polytetrafluorethylene (PTFE: teflon®)Fluorine substitutions create polytetrafluorethylene (PTFE: teflon®) To make it electrolytic: side chains with hydrophilic sulphonate (-SO 3 H) groups are addedTo make it electrolytic: side chains with hydrophilic sulphonate (-SO 3 H) groups are added The Proton Exchange Membrane (PEM)

19 Six activities take approximately two weeks of instructional time. 1.Energy for Transportation - Students examine trade-offs of various fuel/vehicle combinations. 2.Obtaining Hydrogen through Electrolysis - In this hands-on lab, students generate hydrogen and examine the required energy input, stoichiometry, and electrochemistry involved in the process. The HyTEC Curriculum

20 Putting a Hydrogen Fuel Cell to Work - Students generate H 2 and O 2, and use a single cell fuel cell to perform work. 3.Putting a Hydrogen Fuel Cell to Work - Students generate H 2 and O 2, and use a single cell fuel cell to perform work. Modeling a Fuel Cell Redox Reaction - Students use model pieces and a fuel cell simulation to explore the fuel cell reaction. 4. Modeling a Fuel Cell Redox Reaction - Students use model pieces and a fuel cell simulation to explore the fuel cell reaction. The HyTEC Curriculum

21 5.Fuel Cell Efficiency – In a hands-on lab, students measure fuel cell efficiency. 6.Hydrogen for Transportation - Students conduct research and engage in a simulated City Council Meeting to present the advantages and challenges of using hydrogen and fuel cells for a city bus program. The HyTEC Curriculum

22 Bench-top Kit fuel cell electrolyzer fan motor

23 Structure of Atoms: Matter is made of minute particles called atoms.Matter is made of minute particles called atoms. Structure and Properties of Matter: Atoms interact with one another by sharing or transferring electronsAtoms interact with one another by sharing or transferring electrons Chemical Reactions: Chemical reactions occur all around usChemical reactions occur all around us Chemical reactions may release or consume energyChemical reactions may release or consume energy A large number of reactions involve transfer of electronsA large number of reactions involve transfer of electrons Catalysts lower activation energy necessary for reactionsCatalysts lower activation energy necessary for reactions NSES Addressed

24 Hydrogen Fuel Cell website: sepuplhs.org/hydrogen Website and Videos Simulation of fuel cell Simulation of fuel cell Clips from video field trip Clips from video field trip Web Resources Web Resources Info on fuel cells Info on fuel cells

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26 Video highlightsVideo highlights Fuel cell bus in Oakland, CAFuel cell bus in Oakland, CA Portable applications: video camera, computerPortable applications: video camera, computer Production from hydrogen using renewable sourcesProduction from hydrogen using renewable sources Production of hydrogen from landfill gasProduction of hydrogen from landfill gas Applications of Fuel Cells

27 What’s really happening with hydrogen fueled transportation?

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29 National research and demonstration programNational research and demonstration program FC bus projects in CA, CT, DE, NY, MA, SC, TXFC bus projects in CA, CT, DE, NY, MA, SC, TX AC Transit – largest program, 12 busesAC Transit – largest program, 12 buses Buses throughout EuropeBuses throughout Europe Fuel Cell Bus Programs

30 Fuel Cell Vehicles Pre-commercial, 100’s on the road, most mfg’s represented

31 Stations throughout US, some retailStations throughout US, some retail Networks in SoCal, northeast USNetworks in SoCal, northeast US Hydrogen Fueling Stations

32 Developing infrastructure and improving technologyDeveloping infrastructure and improving technology Reducing costReducing cost Addressing public concerns about safetyAddressing public concerns about safety Production of hydrogen from water using renewable energy sourcesProduction of hydrogen from water using renewable energy sources Challenges to Hydrogen Economy

33 Please fill out the blue contact form.Please fill out the blue contact form. SEPUPMaia WillcoxSEPUPMaia Lab-Aids Mark KokerLab-Aids Mark Koker Booth #512 Curriculum Website: sepuplhs.org/hydrogenCurriculum Website: sepuplhs.org/hydrogen For More Information


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