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Energy FUN damentals

Energy FUN damentals. The Good News. 1 st law of thermodynamics. “The increase in the internal energy of a system is equal to the amount of energy added by heating the system, minus the amount lost as a result of the work done by the system on its surroundings.”. HUH?.

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Energy FUN damentals

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  1. Energy FUNdamentals

  2. The Good News 1st law of thermodynamics “The increase in the internal energy of a system is equal to the amount of energy added by heating the system, minus the amount lost as a result of the work done by the system on its surroundings.” HUH? http://mooreslore.corante.com/archives/images/homer%20simpson.gif

  3. The Good News The amount of energy in the universe is constant. Energy is neither created nor destroyed

  4. Forms of Energy mechanical (kinetic) http://z.about.com/d/miami/1/0/z/5/bike.jpg

  5. Forms of Energy heat (thermal) http://www.furniturehomedesign.com/wp-content/uploads/2009/01/space-heater.jpg

  6. Forms of Energy electrical http://www.juniorcitizen.org.uk/kids/electricalsafety/electricity.gif

  7. Forms of Energy Chemical 1 http://i176.photobucket.com/albums/w172/bidule-78/muscles-1.jpg

  8. Forms of Energy Chemical 2 http://www.photoshoponline.co.uk/ekmps/shops/thephotoshop/images/duracell_batteries_set(1).jpg

  9. Forms of Energy Solar (radiant) http://z.about.com/d/space/1/5/Y/Q/sun_tour.jpg

  10. Forms of Energy Nuclear Fission http://www.chemistryland.com/ChemEdArticle/FissionNoText.jpg

  11. Forms of Energy Nuclear Fusion http://www.lancs.ac.uk/ug/hussainw/fusion.jpg

  12. Energy Transformations light (radiant) electrical + heat http://zedomax.com/blog/wp-content/uploads/2008/11/300px-incandescent_light_bulb.png

  13. Energy Unit Conversions • 1 Btu = 1055 J J (Joules) • 1 Btu = 252 cal Btu (British thermal units) • 1 Cal = 1,000 cal cal (calories) • 1 Cal = 3.97 Btu Cal (food calories) • 1 kWh = 3413 Btu kWh (kiloWatthours) • 1 therm = 100,000 Btu

  14. Energy Equivalents • 1 barrel (bbl) crude oil = 5,800,000 Btu • 1 gal gasoline = 124,000 Btu • 1 ton (2,000 lbs) bituminous coal = 25,000,000 Btu • 1,000 cubic feet natural gas = 1,035,000 Btu • 1 gram Uranium (235U): Nuclear Energy = 78,400,000 Btu • 1 gram Deuterium (2H): Sun Energy = 225,000,000 Btu • 1 mass-gram any solid: E= mc2 energy = 85,000,000,000 Btu

  15. The Bad News What?

  16. The Bad News Energy always flows downhill (from a hot body to a cold one)

  17. The Bad News The disorder of a system can never decrease

  18. When energy is transformed some energy is “lost” http://www.musclecarclub.com/petrol/free_gasoline_prices.jpg http://www.funkymotors.ie/images_p/honda_civic_komodo_01_496.jpg

  19. When energy is transformed some energy is “lost” as heat http://www.wiley.com/legacy/college/boyer/0470003790/reviews/thermo/heat_tax.gif

  20. energy loss in a car http://www.consumerenergycenter.org/transportation/consumer_tips/images/energy_losses_in_car.gif

  21. Generation of Electricity I

  22. Generation of Electricity II http://www.lenntech.com/images/Boiler%20FE%20images/boiler-schema.jpg

  23. Generation of Electricity III http://www.powergeneration.siemens.com/NR/rdonlyres/2C99211B-D6C1-4FC4-BB74-FDF6C4216981/0/Steam_Turbine_Altbach_001339.jpg

  24. Generation of Electricity IV http://www.jmg-galleries.com/blog_images/sea_of_power_lines_sf_520c.jpg

  25. waste Coal = Chemical  Heat + Light Steam = Heat  Mechanical + waste Turbine = Mechanical  Electricity waste Power Lines = Electricity  Electricity waste

  26. Why doesn’t the earth run out of useable energy? http://www.foxnews.com/images/281424/0_61_snowball_earth.jpg

  27. The Sun is pumping energy into the earth’s atmosphere 24/7 http://global-warming.accuweather.com/blogpics/globe-modis-browse.jpg http://www.bnsc.gov.uk/assets/channels/education/ae/sun_main.jpg

  28. http://www.solar-benefits.com/index.5.gif

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