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Energy Efficiency and Renewable Energy

Energy Efficiency and Renewable Energy. G. Tyler Miller’s Living in the Environment 13 th Edition Chapter 16. Dr. Richard Clements Chattanooga State Technical Community College. Key Concepts. Improving energy efficiency. Types and uses of solar energy. Types and uses of flowing water.

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Energy Efficiency and Renewable Energy

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  1. Energy Efficiency and Renewable Energy G. Tyler Miller’s Living in the Environment 13th Edition Chapter 16 Dr. Richard Clements Chattanooga State Technical Community College

  2. Key Concepts • Improving energy efficiency • Types and uses of solar energy • Types and uses of flowing water • Uses of wind energy • Types and uses of biomass • Use of hydrogen as a fuel • Use of geothermal energy • Decentralized power systems

  3. The Importance of Improving Energy Efficiency • Net useful energy • Life cycle cost Least Efficient • Incandescent lights • Internal combustion engine • Nuclear power plants Fig. 16-2 p. 381

  4. Efficiencies (fig. 16-4 p. 382)

  5. Ways to Improve Energy Efficiency • Insulation • Elimination of air leaks • Air to air heat exchangers • Cogeneration • Efficient electric motors • High-efficiency lighting • Increasing fuel economy

  6. Electric and Hybrid Cars Fig. 16-10 p. 365 • Rechargeable battery systems • Hybrid electric-internal combustion engine • Fuel cells

  7. Using Solar Energy to Provide Heat and Electricity • Passive solar heating • Active solar heating Fig. 16-17 p. 394

  8. Using Solar Energy to Provide High-Temperature Heat and Electricity Fig. 16-23 p. 398 Fig. 16-25 p. 400 • Solar thermal systems • Photovoltaic (PV) cells

  9. Producing Electricity from Moving Water • Large-scale hydropower • Small-scale hydropower • Pumped-storage hydropower • Tidal power plant • Wave power plant

  10. Producing Electricity from Heat Stored in Water • Ocean thermal energy conversion (OTEC) • Saline solar ponds • Freshwater solar ponds

  11. Producing Electricity from Wind Fig. 16-28 p. 402 Fig. 16-29 p. 402

  12. Producing Energy from Biomass Fig. 16-31 p. 404 • Biofuels • Biomass plantations • Crop residues • Animal manure • Biogas • Ethanol • Methanol

  13. The Solar-Hydrogen Revolution Fig. 16-33 p. 386 • Extracting hydrogen efficiently • Storing hydrogen • Fuel cells

  14. Geothermal Energy Fig. 16-36p. 409 • Geothermal reservoirs • Dry steam • Wet steam • Hot water • Molten rock • Hot dry-rock zones

  15. Geothermal Reservoirs Fig. 16-37 p. 410

  16. Entering the Age of Decentralized Micropower Fig. 16-40 p. 411 Fig. 16-39 p. 411 • Centralized power systems • Decentralized power systems • Micropower systems

  17. Solutions: A Sustainable Energy Strategy Fig. 16-44 p. 414

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