diogo ferreira bar eshkol shani beracha. introduction- the situation nowadays use of artificial...
TRANSCRIPT
The Use Of Natural Light Indoors
Diogo FerreiraBar EshkolShani Beracha
Introduction- The situation Nowadays
•Use of artificial light
•Ending resource Lighting 9%
Pic.1-electricity usage in North America
The Use Natural Light Indoors
•Less use of electricity
•It’s free!
•Ecological
•Healthier
Our solution
•Three parts:
• Light shelf
• Solatube
•Optical fibers
Light Shelf
•Reflects sunlight
•Prevents blinding
Pic.2- using light shelf
Winter sun
Summer sun
Pic.3- winter sun & summer sun
Light Shelf•The shelf’s properties should match the room properties.
•Works only in the southern rooms
Pic.4- light shelf examples
Pic.5- light shelf
Solatube
•Parabolic glass
•Prism
•Tube with mirrors
Structure:
Pic.6-solatube
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
Pic.7-solatube example
Optical fibersOptical fiber Parabol
ic mirror
Water lamp
Pic.8-optical fibers system
Pic.9-parabolic mirror positions
Optical fibersAdvantages•Works for every room
•Optical fibers are small
•Long lifetime
Disadvantages•Price
•Moving the parabolic mirror
Conclusion
•One-time expense.
•Pays off after 1-2 years.
•Reduces the electricity
usage.
•Creates a well lit house.
Thank you for your prompt attention!
Have a sunny day!
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
PricesArtificial light6 lamps (0.013 kW) X 12 hours a day X 0.6 shekels per kW= 0.5616 shekels
For a year:204.984 shekels
Optical fiber3 optical fibers (4 m each) X 15 shekels per meter= 180 shekels
Total: 180 shekels plus the price of the mirror