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Dipl.-Ing. Alexander Rosemann

ARTHELIO Intelligent and Energy-optimised Lighting Systems Based on the Combination of Daylight and the Artificial Light of Sulphur Lamps. Dipl.-Ing. Alexander Rosemann. TU Berlin Institute for Electronics and Lighting Technology Einsteinufer 19, Sekr. E6 D-10587 Berlin

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Dipl.-Ing. Alexander Rosemann

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  1. ARTHELIOIntelligent and Energy-optimisedLighting Systems Based on the Combination of Daylight and the Artificial Light of Sulphur Lamps Dipl.-Ing. Alexander Rosemann TU Berlin Institute for Electronics and Lighting Technology Einsteinufer 19, Sekr. E6 D-10587 Berlin Tel: 030 - 314 22401 / Fax: 030 - 314 22161 elli@ee.tu-berlin.de

  2. Content • Organisation of the Project • System Idea • Measurements • Prototypes • Lighting Planning with HLG

  3. Partners Technische Universität Berlin (Germany) Institute for Electronics And Lighting Technology, coordinator Ricerca e Progetto (Italy) Office for daylight architecture Göteborg University (Sweden) Light education and research centre Semperlux AG (Germany) Luminaire manufacturer (since 11/99) IKL / CelsiusTech Electronics (Sweden) Microwave electronics (until 10/99)

  4. Organisation      

  5. End Mirror Lightpipe Extractor Injector Segment Luminous Fluxes Fi Hollow Light Guides

  6. Advantages of HLG • Lamp and Luminaire are separated • Light Sources with high luminous flux can be used • Maintenance is simplified, thus reducing costs • Light (artificial and daylight) can be transported over a long distance • Light can be coupled out uniformly

  7. System scheme sunlight I Headmodule - Heliostat with EIB/LON-interface II Mixmodule - Addition of Sulphur Lamp Light Depending on the Available Amount of Daylight, EIB/LON-interface III Transportmodule - Efficient Light Transport With Hollow Light Guides with High-reflective Materials (OLF, Miro) IV Luminairemodule - Light Output without Glare modular construction and flexible dimensioning facilitate the integration in different buiding architectures

  8. Spektrale Verteilung der Strahlungsemission der Schwefellampe Sulphur Lamp • continuous spectrum, close to sunlight • low IR- and UV-Radiation • high system luminous efficiency (90 lm/W) • dimmable (20- 100%) • long lifetime • nearly flicker-free • nonpolluting (no mercury)

  9. Goniophotometer  Near Field Photometry (CCD-camera)  Automated Data Aquisition  Any shape of Cross Sectional Area  Maximum Length: 30 m  Maximum diameter: 0.5 m  Eulumdat-data Output First Goniophotometer that can do photo-metric measurements on hollow light guides

  10. Influence of the End Mirror

  11. LID - HLG Segment 3-dimensional view 2-dimensional view

  12. 1 m 4 m 7 m 12 m LID of a HLG 180° output angle

  13. 1 m 4 m 7 m 12 m LID of a HLG 90° output angle

  14. Demonstration Object TUB Lightpipe- installation Heliostat

  15. Prototype 1: Carpiano, Italy

  16. Prototype 1: Carpiano, Italy Sketch of the Daylighting Part Lens Film

  17. Heliostat Sulphur Lamp Mixing Unit Lightpipes Prototype 2: Berlin

  18. Prototype 2: Berlin • The lighting should • supply the staircase with a sufficient • amount of light to use the staircase in a • quick and safe way • give good modelling to the people, • meeting in the staircase • provide good adaptation to the light • quality in the connected rooms, which • are illuminated by daylight (at daytime)

  19. Installation of a Lightpipe-system Measuring the Illuminance Distr. C:\ Comparison of the Results Photometry at the Lightpipe Simulation of the Illuminated Scene Validation of Measurement Data

  20. Results of Comparison: Comparison with Light Plannning Software Tools

  21. Expected Results • Enhancement of Visual Comfort in Deeper Building Interiors • Reduction of Costs for Electric Energy, Heating/Cooling and Maintenance • Development of a Heliostat For the Combined Utilisation of Both, Daylight and Artificial Light in Hollow Light Guides • Optimisation of Hollow Light Guides by Analysing the Luminous Intensity Distribution Data Gained with the Goniophotometer • Completion of a Design Guide as a Helping Tool for Lighting Planners, Architects and Engineers

  22. End of Presentation Thank you for your attention!

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