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COMENIUS PROJECT

2009 - 2011. COMENIUS PROJECT. BE A EURO-ECO-CITIZEN. S.M.S. BALUARDO PARTIGIANI - ITALY. ENERGY SAVING. The energy saving is the best alternative source But to save something it is necessary to know it. NON-RENEWABLE ENERGY.

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COMENIUS PROJECT

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  1. 2009 - 2011 COMENIUS PROJECT BE A EURO-ECO-CITIZEN S.M.S. BALUARDO PARTIGIANI - ITALY

  2. ENERGY SAVING • The energy saving is the best alternative source • But to save something it is necessary to know it

  3. NON-RENEWABLE ENERGY • It is exhaustible and not unlimited. It needs a very long time to reform itself (some whole geologic era). Hurrier it runs out, bigger will be its exploitation. • Its burning produces harmful emissions to the environment.

  4. NON-RENEWABLE ENERGY The principal primary non-renewable sources are: • a) chemical energy stored in fossil fuels (petrol, etc.); • b) nuclear energy stored in radioactive materials ENERGY PRODUCTION TABLE >

  5. RENEWABLE ENERGY • It is inexhaustible and unlimited in nature. • It produces “clean” energy and it doesn’t produces pollutants for humans and the environments

  6. RENEWABLE ENERGY • The principal primary renewable sources are: • a) solar energy; • b) hydraulic energy; • c) wind energy; • d) wave energy; • e) tidal energy; • f) chemical energy from organic substances (biomass); • g) geothermal energy. ENERGY PRODUCTION TABLE>

  7. ACCESS TO ENERGY TODAY • The actual organization and distribution of energy give, to the earth inhabitants, the following accesses: • 50 % no access • 30 % insufficient access • 20 % easy access

  8. ELECTRIC ENERGY • It is the energy produced by an electric central (with the use of a machine called “alternator”) using mechanical energy or heat.

  9. SOME BASIC UNITS • WATT: electrical power unit -1 kilowatt (kW) = 1000 Watt • WATTHOUR: electrical energy unit – 1 kilowatt hour (kWh) = 1000 Watt hour • LUMEN: symbol lm it is the unit of luminous flux • LUX: symbol lx = lumen/m2 it is the unit of illumination

  10. INCANDESCENT LAMPS • It produces the light by an incandescent filament of tungsten. The glass bulb of the lamp is filled with a gas mixture (inert gas and nitrogen) that make the filament does non burn. COMPARISION TABLE LAMPS >

  11. FLUORESCENT LAMPS • This lamp is filled with a gas (mercury vapor) that excited by electricity, emits radiations. These are changed in visible light by a layer of a fluorescent dust that is in the internal side of the glass tube. COMPARISON TABLE LAMPS >

  12. CARBON DIOXIDE (CO2) • Symbol CO2 – The carbon dioxide is a gas dangerous for humans produced during the burning. If we burn methane we put in the air 242 g of CO2 every 1 kWh of energy produced. • The carbon dioxide is fixed by the trees and through the phenomenon of “photosynthesis” is transformed into oxigen (symbol O) that is necessary for human life. • In 1 year a tree is able to transform about 2,5 Kg of CO2

  13. GREENHOUSE EFFECT The phenomenon “greehouse effect” guarantees on the Earth optimal values for the evolution of life. The Earth, infact, absorbs the sun’s rays and put them up in the form of heat. This happens because our planet is surrounded by an anvelope of gas (greenhouse gas) that trap the sun’s rays as the glass of a greenhouse. The increase, however, of the greenhouse gas carbon dioxide causes an increase of the greenhouse effect: greater it is the amount of CO2, greater will be the sun’s energy retained by the atmosphere, causing a rise in the global temperature on the Earth.

  14. GREENHOUSE EFFECT • This phenomenon involves a change of climate with the following consequences: • a) Instability of artic ice; • b) ice melting; • c) rising of sea levels; • d) intensification of the weather phenomenon; • e) advancement of the desert areas; • f) reduction of water resources; • g) effect on migration flows.

  15. THE ELECTRIC ENERGY SAVING • Buy household appliance belonging to the classes A++, A+ and A:they guarantee a low power consumption. TABLE • Use washing machines and dishwashers only with full load. Prefer washing programs at low temperature • Put the fridge at 10 cm from the wall in the less hot area in the kitchen, away from the stove. Don’t introduce hot food inside: frost forms and consuption increase • For lighting the home, choose fluorescent bubs: they consume up to 70% cheaper than traditional bulbs and they last up to 8 times higher TABLE • After use, do not leave electrical equipment (TV, HI-FI, PC, etc.) in stand-by: if you turn off them, you save about 10% of energy. TABLE

  16. WORSHOPS • Electricalconsumption1° • Electricalconsumption2° • Electricityprices in Europe • Energy sources in Italy • Access toenergy in the world • Comparisionofincandescent and fluorescentlamps • Annualconsumption, cost and CO2 emissionby a freezer • Analysisoflighting in the school • Powerconsumptionof LCD TVs

  17. WS 1° - ELECTRICAL CONSUMPTION Click on TABLE choose 5 appliances and fill the following table GO TO THE CALCULATED EXAMPLE GO BACK TO THE LIST

  18. WS 1° - ELECTRICAL CONSUMPTION Calculated example GO BACK

  19. ELECTRICAL CONSUPTION Go back

  20. WS 2° - ELECTRICAL CONSUMPTION Click onTABLE choose 5 appliances and fill the following table GO TO THE CALCULATED EXAMPLE GO BACK TO THE LIST

  21. WS 2° - ELECTRICAL CONSUMPTION Calculated example Go back to the list

  22. ELECTRICAL CONSUMPTION Go back

  23. WS 3° - ELECTRICITY PRICES IN EUROPE Click on TABLE and fill with color the rows of the following graph GO TO THE CALCULATED EXAMPLE GO BACK TO THE LIST

  24. WS 3° - ELECTRICITY PRICES IN EUROPE Calculated example: price in Europe Calculated example: price in Europe with the same purchasing power Go back

  25. ELECTRICITY PRICES IN EUROPE Go back

  26. WS 4° - ENERGY SOURCES IN ITALY Click on TABLE and contruct the two graphs GWhx1000 GWhx1000 GO BACK TO THE LIST GO TO THE CALCULATED EXAMPLE

  27. WS 4° - ENERGY SOURCES IN ITALY Calculated example GWhx1000 GWhx1000 GO BACK

  28. ENERGY SOURCES IN ITALY Go back

  29. WS 5° ACCESS TO ENERGY • The actual organization and distribution of energy, permits to the Earth’s inhabitants, the following access: • 50% no access • 30% insufficient access • 20% easy access • Use the previous values to color the pie graph. • As you know that the Earth’s inhabitants are about 7 miliards, calculate how many people correspond to the percentages listed above: • 50% = milion people • 30% = milion people • 20% = milion people GO BACK TO THE LIST GO TO THE CALCULATED EXAMPLE

  30. WS 5° ACCESS TO ENERGY Calculated example • The actual organization and distribution of energy, permits to the Earth’s inhabitants, the following access: • 50% no access • 30% insufficient access • 20% easy access • As you know that the Earth’s inhabitants are about 7 miliards: • 50% = 3500 milion people • 30% = 2100 milion people • 20% = 1400 milion people GO BACK

  31. WS 6° – COMPARISON OF INCANDESCENT AND FLUORESCENT LAMPS Click on TABLE to take data and complete the following table that calculates how much is the energy saving in a little flat if we replace the incandescent lamps with fluorescent ones GO TO THE CALCULATED EXAMPLE GO BACK TO THE LISTI

  32. WS 6° – COMPARISON OF INCANDESCENT AND FLUORESCENT LAMPS Calculated example GO BACK

  33. COMPARISON OF INCANDESCENT AND FLUORESCENT LAMPS Example of use: 2000 hours/year for 5 years (*) 1 incandescent lamp costs 1€ and last 1000 hours 1 fluorescent lamp costs 10 € and last 10000hours (**) 1 kWh costs about 0,24 € in Italy Go back >

  34. WS 7° - ANNUAL CONSUMPTION, COST AND CO2 EMISSION BY A FREEZER IN RELATION TO VARIOUS ENERGY EFFICIENCY CLASSES Complete the bas chart. You can find the data you need, clicking on TABLE Consumption in relation to the energy efficiency classes GO TO THE CALCULATED EXAMPLE GO BACK TO THE LIST

  35. WS 7° - ANNUAL CONSUMPTION, COST AND CO2 EMISSION BY A FREEZER IN RELATION TO VARIOUS ENERGY EFFICIENCY CLASSES Calculated example Consumption in relation to the energy efficiency classes GO BACK

  36. ANNUAL CONSUMPTION, COST AND CO2 EMISSION BY A FREEZER IN RELATION TO VARIOUS ENERGY EFFICIENCY CLASSES Go back >

  37. ANNUAL CONSUMPTION, COST AND CO2 EMISSION BY A FREEZER IN RELATION TO VARIOUS ENERGY EFFICIENCY CLASSES Go back >

  38. WS 8° - ANALYSIS OF LIGHTING IN THE SCHOOL You will find the data that you need clicking on TABLE GO TO THE CALCULATED EXAMPLE GO BACK TO THE LIST

  39. WS 8° - ANALYSIS OF LIGHTING IN THE SCHOOL Calculated example GO BACK

  40. POWER OF NEON PIPES Pipe 100 cm = 30 W Pipe 120 cm = 36 W Pipe 150 cm = 58 W Go back >

  41. WS 9° - ANNUAL CONSUMPTION AND COST OF USING OF AN LCD TV Clicking on TABLE take the data of 1 TV model and fill the following table: GO TO THE CALCULATED EXAMPLE GO BACK TO THE LIST

  42. WS 9° - ANNUAL CONSUMPTION AND COST OF USING OF AN LCD TV Calculated example GO BACK

  43. TV CONSUMPTION TABLE(1° PART) Go back > Go to the 2° part >

  44. TV CONSUMPTION TABLE(2° PART) Go back >

  45. TV CONSUMPTION TABLE(1° PART) Go back > Go to the 2° part >

  46. TV CONSUMPTION TABLE(2° PART) Go back >

  47. ENERGY SOURCES IN ITALY Go back

  48. ENERGY SOURCES IN ITALY Go back

  49. Comparison of incandescent and fluorescent lamps Example of use: 2000 hours/year for 5 years (*) 1 incandescent lamp costs 1€ and last 1000 hours 1 fluorescent lamp costs 10 € and last 10000 hours (**) 1 kWh costs about 0,24 € in Italy Go back >

  50. COMPARISON OF INCANDESCENT AND FLUORESCENT LAMPS Example of use: 2000 hours/year for 5 years (*) 1 incandescent lamp costs 1€ and last 1000 hours 1 fluorescent lamp costs 10 € and last 10000 hours (**) 1 kWh costs about 0,24 € in Italy Go back >

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