1. IOT POLY ENGINEERING 3-1 4 JAN 11 Homework due Thursday On a separate sheet of paper, define the following: Combustion, Compression, Conservation, Energy, Essay, Force, Fuel, Kinetic Energy, Municipal, Potential Energy, Power, Power Plant, Pressure, Propulsion, Renewable, Rudimentary, Thermodynamics, Vector, Volatile, Work LETTER

2. IOT POLY ENGINEERING 3-1 Schedule Tuesday – Coal Wednesday – Natural Gas/Petroleum Thursday, Friday, Monday, Tuesday – Midterm review Wednesday – Multiple Choice Midterm Thursday – Drafting Midterm MIDTERM WILL BE ON UNIT 1 AND UNIT 2

5. AB E A D B C

7. AE BE BC CE E AD CD A D B C AB DE C E A B D

8. C B D A

9. B BC A D BD BE CE AE

10. Parallel Projection to Orthographic

11. 1. Add width of front view to depth. 2. Add the space we will put between: 1” 5” + 1.75” = 6.75” HORIZONTAL STARTING POINT 6.75” + 1” = 7.75” 3. Subtract from the total width. 10” – 7.75” = 2 ¼” 4. Divide by 2. Horizontal Starting Point = 1 1/8”

12. 1. Add height of front view to depth. 2. Add the space we will put between: 1” 4” + 1.75” = 5.75” VERTICAL STARTING POINT 5.75” + 1” = 6.75” 3. Subtract from the total height. 7.25” – 6.75” = ½” 4. Divide by 2. Vertical Starting Point = ¼”

15. IOT POLY ENGINEERING 3-1 1.Energy Sources – Fuels and Power Plants 2.Classical Mechanics: Force, Work, Energy, and Power 3.Trigonometry and Vectors 4.Energy and Power 5.Impacts of Current Generation and Use U NIT 3 – E NERGY AND P OWER Topics Covered

16. IOT POLY ENGINEERING 3-1 U NIT 3 – E NERGY AND P OWER Topic 1: Energy Sources – Power Plants and Fuels FUEL: a material used to produce heat or power Most of the following are power plants – what is the fuel shown/used in each image?

17. IOT POLY ENGINEERING 3-1 Why a watermark of the Sun? The Sun is the source of all energy on Earth. Topic 1 Energy Sources – Fuels

18. IOT POLY ENGINEERING 3-1 1.Energy is NOT fuel used for transportation and heating, for lights and appliances, and foods for consumption. FUELENERGY 2.Fuels are a source of energy. 3.Fuels are the material source of energy, containing it as a potential. Fuels and Energy Topic 1 Energy Sources – Fuels

19. IOT POLY ENGINEERING 3-1 1.Non-renewable 1.Fossil Fuels Coal, Natural Gas, Petroleum (Oil) 2.Nuclear – Uranium ore 2.Renewable Biofuels, Biomass, Geothermal, Hydro, Solar, Tidal, Wave, Wind Fuel Types Topic 1 Energy Sources – Fuels

20. IOT POLY ENGINEERING 3-1 1.Fossil fuels are burned to release stored energy. 2.Formed from the heated and pressurized remains of dead plant and animal life over hundreds of millions of years. 3.Non-renewable – millions of years to form and reserves are being depleted faster than new ones are being formed. 4.Volatile: natural gas and petroleum 5.Nonvolatile: coal Non-Renewable Fuels – Fossil Fuels

21. IOT POLY ENGINEERING 3-1 Non-Renewable Fuels – Coal 1.Coal is formed from the remains of terrestrial plants that died around 350 million years ago. 2.Plant remains preserved in water and mud. Heat and Pressure

22. IOT POLY ENGINEERING 3-1 Non-Renewable Fuels – Coal 1.4,000 BC – China carved ornaments 2.2,000 BC – funeral pyres in Britain 3.1,200s AD – underground mining developed

23. IOT POLY ENGINEERING 3-1 Non-Renewable Fuels – Coal History of Extraction and Use Colliery (COLL-yer-ee) – a coal mine and its connected buildings. Coal must be cleaned and refined (improved) after extraction South Wales, Great Britain – oldest known colliery. First commercial coal mining in U.S. in 1730s, VA. Prior to 1880s, coal was picked by hand underground. By 1912, surface mining was used.

24. IOT POLY ENGINEERING 3-1 Non-Renewable Fuels – Coal Methods of Extraction Underground Mining: 60% of world production 33% of U.S. mining Uses timber for support tunnel Machines enter and extract coal Surface (Strip) Mining: More coal extracted than underground mining Exposes coal by removing land above deposits

25. IOT POLY ENGINEERING 3-1 Non-Renewable Fuels – Coal Uses Coal is mostly used as a solid fuel to produce electricity and heat through combustion. It is usually pulverized (crushed into small particles) then burned in a furnace for electricity generation at a power plant. ~40% of world’s electricity comes from coal ~49% of U.S. electricity comes from coal

26. IOT POLY ENGINEERING 3-1 4 JAN 11 Copy tonight’s homework: On a separate sheet of paper, define the following: Combustion, Compression, Conservation, Energy, Essay, Force, Fuel, Kinetic Energy, Municipal, Potential Energy, Power, Power Plant, Pressure, Propulsion, Renewable, Rudimentary, Thermodynamics, Vector, Volatile, Work LETTER