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LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
LED Status Pakistan
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LED Status Pakistan

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Transcript

  • 1. LED Status_2013 Syed Akhtar Ali Visiting Professor Energy Management IoBM Karachi,Pakistan Energy Consultant proplanassociates@gmail.com
  • 2. What is an LED? Light Emitting Diode Colour White
  • 3. Anatomy of an LED
  • 4. LED Basic Components LED chips are made of silicone (like computer chips) then mounted in a “package” that has some electrical leads and sometimes a heat sink
  • 5. Currently Most LED’s Are Directional But not so good for applications better suited to omni directional lamps
  • 6. LED Light Distribution Some LEDs have diffusion lenses to spread out the light, or don't have the reflective cap.
  • 7. Color Rendering... Color Rendering Index ( CRI ) How Natural And Normal Do People And Things Appear Under Artificial Light? CRI Scale goes from: 0 - 100, with 100 being the best CRI
  • 8. Color Rendering Index ( CRI ) The Perfect Light Source... “The SUN” 100 90 70 DAYLIGHT MH ( 90 ) CMH (85+) FLUORESCENT ( 60+ to 92 ) 60 STD. METAL HALIDE ( 65-70 ) DELUXE LUCALOX ( 65 ) 50 COATED MERCURY ( 50 ) 40 POORER Perfect Color Rendering BETTER 80 INCANDESCENT / HALOGEN (100) 30 20 10 0 LUCALOX, HPS ( 22 ) CLEAR MERCURY ( 15 ) LPS ( 0 )
  • 9. Efficiency: Lumens, Watts, & Efficacy  Lumens: total “light”  Watts: total power  Efficacy: how much light for the power (lumens per watt, LPW) (similar to miles per gallon) _______ Watts
  • 10. Common Colour Temperatures Approx Temp. 8500K 6500K 6000K 4500K 4000K 3000K 2500K 2000K Light Source Blue Sky Daylight Fluorescent Lamp Clear Mercury Lamp Clear Metal Halide Lamp Cool White Fluorescent Lamp Halogen Lamp, WW Fluorescent 40 Watt Incandescent Lamp Candle, HP Sodium Lamp
  • 11. Myth #1 LED’s Create No Heat
  • 12. Lighting Trend
  • 13. LED ATTRIBUTES
  • 14. Led Attributes
  • 15. Eis of Lamps
  • 16. LED Prices
  • 17. LED MARKET PENETRATION IN THE U.S.
  • 18. LED Applications
  • 19. Most Efficacious LED Products
  • 20. Future Advances in LED Technology
  • 21. A-type Lamps
  • 22. Directional Lamps_definition
  • 23. Indoor Luminaire_Definition
  • 24. Lamps vs Luminaire • LAMPS:60% Installations and 20% Energy Consumption • Luminaire:37% installation and 80% consumption
  • 25. Indoor Luminaire Potential
  • 26. Troeffer
  • 27. LED Troffers

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