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Energy efficient indoor ligtihng technologies

Energy efficient indoor ligtihng technologies. Prof. Georges Zissis georges.zissis@laplace.univ-tlse.fr. Industrial Applications. Interior Lighting. Urban Lighting. Transport Lighting & Signs. Light sources are everywhere !. Monument Lighting. Signalisation & Displays.

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Energy efficient indoor ligtihng technologies

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  1. Energy efficient indoor ligtihng technologies Prof. Georges Zissis georges.zissis@laplace.univ-tlse.fr

  2. Industrial Applications Interior Lighting Urban Lighting Transport Lighting & Signs Light sources are everywhere ! Monument Lighting Signalisation & Displays

  3. Soustainable Developpement Full production of FR + IT 200 billion Euros per annum (Europe) Urban 8% Tertiary 48% Industrial 16% 1 890 million tonnes of CO2 per year 80 tonnes Hg-contaminated wastes collected in France every week Light pollution of skies Residential 28% (Mils, RL-5, 2003) Actual situation 33 billion lamps operate every day 2 650 TWh electricity consumed per annum 19% of worldwide electricity production 3% of primary energy used every year for lighting • 12% France • 9% Germany • 21% USA • 34% Tunisia • 86% Tanzania • 16 billion new lamps per annum • 25 billion of Euros/annum (turnover lamp industry) • Turnover increases constantly since 20 years

  4. 1.2% growth/annum 8.0 billions (2030) 1.0 billion (2030) Energy (MWh/capita/annum) 2030 * 2006 GDP/capita (k$/an) Tomorrow ? (2030)… • 6.5 billion people live on earth (2006) • 1.5 billion without connection to electrical grid (2003) 5 billion people use 2 650 TWh par year Average energy used for lighting: 430 kWh/capita/annum • 6.3 k$ average annual GDP / person (2006) • 4% annual average GDP growth rate (2006) Average 680 kWh/capita/annum for 7 billion people in 2030 4800 TWh in 2030 or 1,8 times more energy need…

  5. Should we ban incendescnt lampes? Incand. 35% • Is production capicity sufficient ? • Is the consummer ready for the market transfromation ? • What is the social impact ? Incand. 70%

  6. It is better to promote energy efficient technologies… Incandescent Lamps (GLS) 10 - 14 lm/W Compact Fluorescent lamps (CFL) 30 - 65 lm/W Electroluminescent Diodes (LED) 30-50 lm/W

  7. Diameter 26 mm Luminus efficacy = 80 to 95 lm/W Eln or EM Ballas Hallophosphates ou triphosphors Mature Product Diameter 38 mm Luminus efficacy = 40 to 65 lm/W EM Ballast Hallophosphates Declining Product T12 T5 T8 Diamètre 16 mm Luminus efficacy = 95 to 105 lm/W Eln Ballast Triphosphors Product in expansion Building sector: Solutions exist

  8. Residential sector has a major importance Average Luminous efficacy of the sector 23.7 lm/W (from 11.5 to 64 lm/W) 16 TWh Energy (MWh/capita/annum) GDP/capita (2000k$/an) 200 TWh

  9. A Residential sector is complex… Some barriers to overcome • Consumer dislikes classic CFL shapes, and, CFLs misfit often to “design” luminaries • Consumer dislikes colour temperature & rendering of CFLs • Good quality CFLs are (still) expensive, and, inexpensive CFLs aren’t (very often) reliable • Return time is short, but “diluted” and not directly “observable” • Plug & Play (integral) CFLs aren’t dimmable • Consumer need all light instantaneously, but CFLs need time to warm-up • CFL dislikes rapid (or random) ON-OFF cycle and is incompatible with presence detectors • CFL power supply dislikes mains voltage fluctuations (this is important for developing countries) • CFL aren’t “really green” products (mercury)… Quality and labelling are major issues

  10. Unefficient Information … Luminaires Many of these arguments are obsolete… Colours Shapes Dimming • Efficacy may be affected • Lifespan can be shorter • Control can be complex

  11. Unefficient Information … 5 0 Hg (mg) 4 0 3 0 2 0 Hg-dosing (mg) Less & less Hg inside FLs & CFLs 1 0 0 EU-RoHS and lamp Recycling avoids that… 1 9 8 0 1 9 8 5 1 9 9 0 1 9 9 5 2 0 0 0 2 0 0 5 2 0 1 0 China year CFLs are really “green” Environmental impact of CFLs

  12. Integral CFL   Look alike CFL A transparent GLS is 150-200 times brighter than an “equivalent” CFL Proposed equivalence: 1 : 4 10 W CFL  40 W Incand. 15 W CFL  60 W Incand. 25 W CFL  100 W Incand. = GLS - CFL equivalence has to be revised… • Luminous flux is only an indicator. • Human eye is sensitive to the brightness

  13. Basic Consumerist Green 0,7 % 0,7 % 0,7 % 0,5 % 2,0 % 0,5 % 13,5 % 9,0 % 22,4 % - 30% +16% +31% +55% - 54% +16% Impact on energy consumption from 2006 to 2030 Power Light

  14. Domain CO2 savings per annum Energie Savings Urban CMHL Commercial Tertiairy & Industrial Residential Some advices…

  15. Light emitting diodes: the light sources of future? But this is another story…

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