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Diogo Ferreira Bar Eshkol Shani Beracha. Introduction- The situation Nowadays Use of artificial light Ending resource Lighting 9% Pic.1-electricity usage.

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Presentation on theme: "Diogo Ferreira Bar Eshkol Shani Beracha. Introduction- The situation Nowadays Use of artificial light Ending resource Lighting 9% Pic.1-electricity usage."— Presentation transcript:

1 Diogo Ferreira Bar Eshkol Shani Beracha

2 Introduction- The situation Nowadays Use of artificial light Ending resource Lighting 9% Pic.1-electricity usage in North America

3 The Use Natural Light Indoors Less use of electricity Its free! Ecological Healthier

4 Our solution Three parts: Light shelf Solatube Optical fibers

5 Light Shelf Reflects sunlight Prevents blinding Pic.2- using light shelf

6 Winter sun Summer sun Pic.3- winter sun & summer sun

7 Light Shelf The shelfs properties should match the room properties. Works only in the southern rooms Pic.4- light shelf examples

8 Pic.5- light shelf

9 Solatube Parabolic glass Prism Tube with mirrors Structure: Pic.6-solatube

10 Solatube Suitable for every sun position. Easy to apply. 1 tube= 33 m² Only for the top floor Big rooms = more tubes Pic.6-solatube

11 Pic.7-solatube example

12 Optical fibers Optical fiber Parabolic mirror Water lamp Pic.8-optical fibers system

13 Pic.9-parabolic mirror positions

14 Optical fibers Advantages Works for every room Optical fibers are small Long lifetime Disadvantages Price Moving the parabolic mirror

15 Conclusion One-time expense. Pays off after 1-2 years. Reduces the electricity usage. Creates a well lit house.

16 Thank you for your prompt attention! Have a sunny day!

17 Window Width Room Depth Solar altitude Shelf Thickness 6 ft/1.83 m 8 ft/2.44 m 20 deg 5/13 cm 5 ft/1.52 m 10 ft/3.05 m 35 deg 4/10 cm 4 ft/1,22 m 12 ft/3.66 m 50 deg 3/8 cm 3 ft/91 cm 14 ft/4.27 m 65 deg 2/5 cm 2 ft/61 cm 16 ft/4.88 m 80 deg 1/3 cm Light Shelf Instances

18 Prices Artificial light 6 lamps (0.013 kW) X 12 hours a day X 0.6 shekels per kW= shekels For a year: shekels Optical fiber 3 optical fibers (4 m each) X 15 shekels per meter= 180 shekels Total: 180 shekels plus the price of the mirror


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