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LE07 – Heather COOPER A2012 Sévenans Marvell Ikounga Thomas Neukirchner Sylvain Menguy

Lighting devices for emerging countries. LE07 – Heather COOPER A2012 Sévenans Marvell Ikounga Thomas Neukirchner Sylvain Menguy. About the Project …. Lighting devices Dedicated for people in the developing world Meet many criteria :

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LE07 – Heather COOPER A2012 Sévenans Marvell Ikounga Thomas Neukirchner Sylvain Menguy

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  1. Lightingdevices for emerging countries LE07 – Heather COOPER A2012 Sévenans Marvell Ikounga Thomas Neukirchner Sylvain Menguy

  2. About the Project … • Lightingdevices • Dedicated for people in the developing world • Meetmanycriteria : • Beingaffordable (not expensive or high return on investment) • Easy to use and install, strong and durable • Made fromcommonlymaterials

  3. Plan • Devicespresentation • The solar mosquito-killer lamp • The Cool EarthSolar system • The solarbottlebulb • Comparisons • Choice of one device

  4. The Solar Lamp Mosquitoes Killer

  5. I - The Solar Lamp Mosquitoes Killer I – 1 Components

  6. I - The Solar Lamp Mosquitoes Killer I – 2 How the light is converted into electricity Sunlight strikes the lamp solar cells Photons alter the trajectory of the electrons, and thus release them N-type silicon has free electrons, the same released previously. P-Types silicon has free holes. When N-type and P-Type silicon come into contact, an electric field forms within the cell

  7. I - The Solar Lamp Mosquitoes Killer I – 3 How the lamp is charged and switched on Circuit using a Photo resistor to switch on the light automatically During daylight, the solar panels produce enough power to charge the battery During the night, the electricity stored make the lamp light on

  8. I - The Solar Lamp Mosquitoes Killer I – 4 How the mosquitoes prevention work High-voltage electric grid (harmless for children) • Eliminates mosquitos safely and effectively in a non-toxic and non-chemical way

  9. The Cool Earth Solar system

  10. II – The Cool Earth Solar system II – 1 Shape, Dimensions …

  11. II – The Cool Earth Solar system II – 2 About the cell… • Generates 300 to 400 times the electricity of a classiccell • Only one cell • Need a cooling system (water-cooling system)

  12. II – The Cool Earth Solar system II – 3 Adding to this a classic DEL lighting … • 5 Watt DEL lamp = 60 Watt incandescent bulb • Lifespan : more than 50 000 hours • CES system couldprovide 200-300 Watts, itcouldsupply 40-60 DEL lampsat the same time

  13. The solar Bottle bulb

  14. III – The Solar bottle bulb III – 1 What is this process for ? • Provide light to houses which are windowless • Give light to that homes which are not economically capable to buy electricity • Light up dark areas in your home during daytime • After installation on the roof, the water will reflect the light in every direction instead of spotting it only at one point (diffused light)

  15. III – The Solar bottle bulb III – 2 How does it work? • Sunlight is refracted by the water • Water refracts the light from above to below into the darkness • The light spreads out around the room • Principle of refraction (the light, when entering into water, changes direction and spreads light in every direction).

  16. III – The Solar bottle bulb III – 3 Advantages • It diffuses light in every direction (more powerfulthansomeelectric bulbs) • Lifespanof five years • Veryuseful by sunnyweather / in sunnycountries • Very cheap • Easy to assemble

  17. Comparisons Price – Return on Investisment • CES system : • balloon (1 €) • 1 DEL lamp : 5 € • Global system (cell, coolling system and structure) : 30 € • Solarlamp : 15 € • Bottle bulb : 1 €

  18. Comparisons Efficiency • Solarlamp : 10 m² = 3-4 metersaround • Bottle bulb : equivalent to a 60W bulb • CES system : cansupply 40 to 60 DEL Lampsat the same time

  19. Comparisons Ergonomic aspects • CES system : light and aerodynamic but big size • Bottle bulb : quitesmall but static • Solarlamp : portable with a handle. Can be a static and a movinglightingdevice and can lights during the night (battery). Killsmosquitoes.

  20. Comparisons Maintenance • CES system : Change the ballooneveryyear • Solarlamp : no maintenance, justneeds to becleaned and to change batteries • Bottle bulb : Change every 5 years

  21. Comparisons Production • CES system : can’tbebuilt in emerging country • Solarlamp : can’tbebuilt in emerging country • Bottle bulb : Easy to buildeverywherewithsimple plastic bottle and metal (20 minutes)

  22. Choice The solarbottle bulb

  23. Sources Solarbottle bulb : BBC video : http://www.bbc.co.uk/news/world-asia-pacific-14967535 Informations : http://techledger.wordpress.com/2011/07/14/solar-bottle-bulb/ http://www.instructables.com/id/How-to-build-a-SOLAR-BOTTLE-BULB/ http://ollengg.blogspot.fr/2012/07/technology-has-no-ends.html Cool EarthSolar system : Theirwebsite : http://www.coolearthsolar.com An article : http://solar.calfinder.com/blog/products/cool-earth-reshaping-solar-energy-with-balloons/ Solar mosquito-killer lamp : http://home.howstuffworks.com/solar-light2.htm http://www.antimoustic.com/ http://www.priceminister.com

  24. Thankyou LE07 – Heather COOPER A2012 Sévenans Marvell Ikounga Thomas Neukirchner Sylvain Menguy

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