منابع انرژی تجدیدپذیر
اسلاید 1: Energy Efficiency and Renewable Energy Resources (Miller, Chapter 17)Environmental Studies 001with Dr. Trulio
اسلاید 2: Solutions:We have the answers!Energy Efficiency! (Miller Ch. 17)43% of energy in the US is wasted unnecessarilyIncandescent bulb=5% efficientFluorescent bulb=20% efficientAuto fleet standards = CAFE Standards (Corporate Average Fuel Economy) 12.9 mpg in 197427.9 mpg today40 mpg CAFE standard would cut gas use by 50%
اسلاید 3: Efficiencies
اسلاید 4: Ways to Improve Energy EfficiencyInsulationEliminate air leaksAir to air heat exchangersEfficient appliancesEfficient electric motorsHigh-efficiency lightingIncreasing fuel economy
اسلاید 5: Solutions:We have the answers!Renewable Energy Resources! BiomassHydroelectric powerGeothermalSolar—passive and activeWind generationHydrogen power
اسلاید 6: Using Solar Energy to Provide Heat and ElectricityPassive solar heatingActive solar heating
اسلاید 7: Using Solar Energy to Provide High-Temperature Heat and ElectricitySolar thermal systemsPhotovoltaic (PV) cellsSolar Cell Trade-Offs
اسلاید 8: Producing Electricity from Moving WaterLarge-scale hydropowerSmall-scale hydropower50% of West Coast electricity7% of US electricity20% of World’s electricityMajor environmental impactsHigh construction costs
اسلاید 9: Impacts of hydropower on salmon and other riverine spp. Pollution Disruption of water flow Loss of biodiversity Invasive species
اسلاید 10: Impacts of hydropower on Species and People_______________Dams can provide many human benefits but:Disrupts ecological services rivers provide; e.g. 119 dams on Columbia River have caused a 94% drop in wild salmon; removing hydroelectric dams will restore native spawning groundsDisplaces millions of people worldwide as reservoirs flood traditional homelandsNo room for expansion in the US
اسلاید 11: Producing Electricity from Wind
اسلاید 12: Producing Energy from BiomassBiofuelsBiomass plantationsCrop residuesAnimal manureBiogas Ethanol Methanol
اسلاید 13: The Solar-Hydrogen RevolutionExtracting hydrogen efficientlyStoring hydrogenFuel cells
اسلاید 14: Geothermal EnergyGeothermal reservoirsDry steamWet steamHot waterMolten rockHot dry-rock zones
اسلاید 15: Geothermal Reservoirs
اسلاید 16: Entering the Age of Decentralized MicropowerCentralized power systemsDecentralized power systemsMicropower systemsFig. 16-39p. 411
اسلاید 17: Creating a Sustainable Energy FutureIncrease fuel efficiency standards for vehicle, appliances, buildingsTax and other financial incentives for energy efficiencySubsidize renewable energy use, research and developmentInternalize externalities for fossil fuelsBy 2050: Increase renewable energy to 50%cut coal use by 50%phase out nuclear altogether
اسلاید 18: Solutions: A Sustainable Energy Strategy
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