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Part 1 led fasad lighting design

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Training for Jabatan Warisan negara Malaysia. Basic Lighting System Part 1

Training for Jabatan Warisan negara Malaysia. Basic Lighting System Part 1

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Part 1 led fasad lighting design Presentation Transcript

  • 1. LEDs - the future?Bangunan Sultan Abdul Samad
  • 2. LED: The future? Introduction• part 1 - who is Firespec design?• part 2 - what are LEDs?• part 3 - what can we use LEDs for?• part 4 - whither the future?
  • 3. LED: The future?part 1 - who is Firespec design?
  • 4. Bangunan Sultan Abdul SamadMenara Jam Bangunan Sultan Abdul Samad
  • 5. treasure island, las vegas bellagio, las vegas wynn encore, macauemirates palace hotel, abu dhabi wynn macau casino, macau
  • 6. medieval & renaissance galleries, v&a museum, london richard & judith bollinger jewellery gallery, v&a museum, londonhancock, great north museum, newcastle the book of the dead, british museum, london
  • 7. LED: The future?part 2 - what are LEDs?
  • 8. • electroluminescence discovered in 1907• first infra-red LED developed in 1961• first visible (red) LED developed in 1962.• until 1968, LEDs cost upward of $200 per unit. Typical LED replacement lamp - 38 diodes in one package• first high-powered blue LED in 1990s.• blue LED can excite phosphor to produce white light. Haitz’s law - light output increases exponentially
  • 9. • an LED is a semi-conductor device, also referred toas a solid-state device.• when electron meets a hole, a photon is emitted.• colour of light is determined by material. Inner workings of an LED (drawing by S-Kei)• less wear-and-tear makes devices extremely long-lived.• heat is primary cause of early LED failure. Effect on life of Luxeon T2 LED by temperature (graph by Luxeon Inc.)
  • 10. • an LED cannot make white light, but only a narrow partof spectrum.• we can combine the colour of several LEDs forRGB or additive mixing• or a high-output short wavelength LED toexcite a phosphor coating RGB LEDs combine to produce white light.• RGB LEDs can be tuned to give white at theexpense of colour stability.• remote phosphor LEDs become physically larger forhigher outputs.• high output LEDs need considerable thermal management Remote phosphor LED uses multiple LEDs and a single emission plate to create white light
  • 11. 2ÓDiameter Compact Size, Compact FixturesXicato - phosphor coated technology Luminous Av Rated Efficacy Flux Lamp Life Xicato XSM @ 46 lumens / 1,000 50,000 700mA 3000K W lumens hours Xicato XLM @ 52 lumens / 2,200 50,000 700mA 3000K W lumens hours71mm x 15mm optical window plug in connections Osram 20W HCI-TC 85 lumens / 1,700 12,000 Powerball W lumens hoursXicato XLM Module - up to 2200 lumens at 700mA
  • 12. • colour rendering - how measured? See Student noted• what is the lamp life, how is it measured? See student note• how easy is it to replace the LED module?• how can we control the output? Software driven• what guarantee will the manufacturer give to producereplacement fixtures in the future?• will the LED module be obsolete in the near future?
  • 13. Basic Lighting Knowledge1. Lumen (lm) Lumen is the international (SL) unit of luminous flux, a measure of overall light emitted by a light source.
  • 14. 2. Candela(cd) Candela is the international(sl) unit of luminuous intensity,a measure of light emitted by a light source in a particular direction. Any given light source will have different luminous intensities in different directions considered. [candela = lumen/solid angle]
  • 15. 3. Beam Angle [Unit:degree] Beam angle is the angle between two directions for which the luminous intensity is 50% of the maxmum intensity as measured in a plan through the nominal beam centerline.Beam angle of a bulb gives an idea of how the light beam spreads away from the beam center.
  • 16. 4. LUX(lx) Lux is the international(SL)unit of illuminance, a measure of light arriving at a surface, 1 lumen per square foot equals 1 footcandle, while 1 lumen per square meter equals 1 lux . [lux = lumen/m2]
  • 17. 5. Color Temperature / Correlated Color Temperature(CCT) A black-Body radiator will have a different color when it is heated up to different temperatures (in kevin).The Temperature at which the heated black-body radiator matches the color of the light source is the color temperature of the light source.
  • 18. 6. Color Rendering Index(CR) Color rendering index ranges from 0-100 ,measures a light sources ability to reproduce the color of various objects being lit by a reference light source, black body radiator(CRI=100)7. Efficacy (lm/W) Efficacy is the efficiency of a light source to concert electricity energy to light energy which is expressed in lumen output per unit power input (watt) [Efficacy = lumen / wattage]8. Design Life Time Design life time is the average life of a lighting product when it is operated at nominal lamp voltage,current and controlled working environment. Actual lamp life varies because of any different from those rating condition.
  • 19. 9. Dimmability Not all lighting prodcuts is designed for dimming function. Dimming a non- dimmable LED lighting product will cause un-predictable result and may affect the life time of the products. The below figure shows the typical input current variation while adjusting the DC voltage input to dimmable and non-dimmable product.
  • 20. LED: The future?part 3 - how can we use LEDs?
  • 21. Why LED Lighting Solution ? Technology is changing lives at a pace never before witnessed in all of human history, and with it, the way we see the world. More than a hundred years ago theincandescent filament brought illumination to the night, multiplying human productivity at an exponential rate. Later, fluorescent light rose up as a power-saving alternative to the incandescent. Mengapa LED Penyelesaian Lampu? Teknologi mengubah kehidupan pada kadar yang belum pernah disaksikan dalam sejarah manusia, dan dengan itu, cara kita melihat dunia. Lebih daripada seratus tahun yang lalu, filamen pijar membawa pencahayaan malam, mendarabkan produktiviti manusia pada kadareksponen. Kemudian, lampu neon bangkit sebagai alternatif yang menjimatkan tenaga kepada pijar
  • 22. LED: The future?project #1 – Bangunan Sultan Abdul Samad
  • 23. SOFTWARE LAYER Console application is used1 to monitor Light Shows Designer application is used by USER COMMUNICATIONS Quick Play Pro CONFIGURATIONS AND PROGRAMING Alarm FIRMWARE LAYER Triggers MAIN MENU Program File Configurations Show Type Program File Configuration Communications Ports EPROM CAT5 and RS232 Program File File Name Light Show Timers IPLAYER 3 Play LOADWARE LAYER Light Show DMX Driver Play Loadware UNIVERSAL DMX
  • 24. LED: The future?project #2 – Putrajaya KPKK Building
  • 25. KPKKPUTRAJAYA
  • 26. Putrajaya 4G8 and 4G9
  • 27. LED: The future?project #3 - Atmosphere,Science Museum, London
  • 28. LED: The future?part 4 - the future of LED?
  • 29. extract - ‘Guidelines for specification of LED Lighting Products 2010’ (8pp).
  • 30. extract - ‘LumeLEX 2000 Series Reliability Datasheet IS-0112~’ (13pp.)
  • 31. • Daily Mail article, 25th October 2010:‘Seeing the cut price light’.• Ryness Electrical replacement GU10downlight supplies 340 lumens.• typical 50W dichroic supplies 800 lumens.• replacing standard downlight with Suggested LED lamp for GU10 replacementsuggested lamp would reduce light output by 58%• replacing one lamp would save 86% energy.• however 2.4 new lamps would be needed.• replace halogen with IRC technology& energy saving drops to 52%.• energy saving is only part of the picture Typical GU10 filament lamp• payback time rises to 5 years.