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Chapter 18 delves into diverse renewable energy solutions, featuring passive and active solar heating systems, advancements in wind power, and the efficiency of hydrogen-powered turbine generators. It explores the technology behind photovoltaic cells, biomass energy, hydroelectricity, geothermal systems, and innovations like fuel cells. The chapter also discusses energy conservation techniques, hybrid vehicles, and the importance of increasing energy efficiency. By blending traditional and modern methods, we can leverage Earth's resources to foster sustainable energy for the future.
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Chapter 18 Finish Monday, Test Tues/Wed
Section 1 Renewable Energy Today Chapter 18 Passive Solar Heating
Section 1 Renewable Energy Today Chapter 18 Active Solar Heating
Stirling Solar System25 Kilowatt generator$250,000world’s most efficientuses hydrogen to run a small turbine
Section 1 Renewable Energy Today Chapter 18 Photovoltaic Cells Sunlight falls on a semiconductor, causing it to release electrons. The electrons flow through a circuit that is complete when another semiconductor in the solar cell absorbs electrons and passes them on to the first semiconductor.
Section 1 Renewable Energy Today Chapter 18 Wind Farms • The cost of wind power has been steadily falling as wind turbines have become more efficient.
Section 1 Renewable Energy Today Chapter 18 Biomass—Power from Living Things
Bio-fuels • Methane (manure, land fills, etc) • Biodiesel • Alcohol from corn grain • Alcohol from sugar cane • Alcohol from cellulose (corn stover or switchgrass) • “Cellulosic ethanol”
Section 1 Renewable Energy Today Chapter 18 Hydroelectricity—Power from Moving Water
Hydropower Advances • In-stream • low pressure • micro-hydropower.
Section 1 Renewable Energy Today Chapter 18 Geothermal Energy—Power from the Earth
Section 1 Renewable Energy Today Chapter 18 Geothermal Heat Pumps: Energy for Homes
Section 2 Alternative Energy and Conservation Chapter 18 Tidal Power
Section 2 Alternative Energy and Conservation Chapter 18 Ocean Thermal Energy Conservation
Section 2 Alternative Energy and Conservation Chapter 18 Fuel Cells
Fuel Cells can run on natural gas • Or any other hydrogen rich fuel, including gasoline. • Bloom Box delivers electricity (60 Minutes) • A power plant converts chemical energy to thermal energy to mechanical energy to electrical energy. Then loses energy to scrubbers and transmission. • A fuel cell leaves out the middle two steps, no pollution and can be set up in your back yard.
Section 2 Alternative Energy and Conservation Chapter 18 Energy Efficiency • Most of our devices are fairly inefficient. More than 40 percent of all commercial energy used in the United States is wasted. • Increasing efficiency may involve sacrifices or investments in new technology.
Section 2 Alternative Energy and Conservation Chapter 18 Cogeneration • production of two useful forms of energy from the same fuel source. • For example, the waste heat from an industrial furnace can power a steam turbine that produces electricity. • Small cogeneration systems have been used for years to supply heat and electricity to multiple buildings at specific sites.
Section 2 Alternative Energy and Conservation Chapter 18 Hybrid Cars
Section 2 Alternative Energy and Conservation Chapter 18 Conservation Around the Home
Name______________hr___ 1. Concept Review 20 2. Concept Map 20 3. Video – Modern Marvels R.E. 15 4. Notes 15 5. Video – Nova, Saved by the Sun 10 6. Energy Problems 20 TOTAL 100 Chapter 18 Notebook
Name______________hr___ 1. Concept Review 20 2. Concept Map 20 3. Video – Modern Marvels R.E. 15 4. Notes 15 5. Video – Nova, Saved by the Sun 10 6. Energy Problems 20 TOTAL 100 Chapter 18 Notebook
Name______________hr___ 1. Concept Review 20 2. Concept Map 20 3. Video – Modern Marvels R.E. 15 4. Notes 15 5. Video – Nova, Saved by the Sun 10 6. Energy Problems 20 TOTAL 100 Chapter 18 Notebook
Name______________hr___ 1. Concept Review 20 2. Concept Map 20 3. Video – Modern Marvels R.E. 15 4. Notes 15 5. Video – Nova, Saved by the Sun 10 6. Energy Problems 20 TOTAL 100 Chapter 18 Notebook
Spring Science Nights • March 31st – Westwood View • April 14th – Fiske (KCK) • April 18th – Highlands