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. E 6 D-10587 Berlin Tel: 030 - 314 22401 / Fax: 030 - 314 22161 elli@ee. tu-berlin. de
Content • • • Organisation of the Project System Idea Measurements Prototypes Lighting Planning with HLG ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
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 / Celsius. Tech Electronics (Sweden) Microwave electronics (until 10/99) ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
Organisation ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
Hollow Light Guides Lightpipe Extractor End Mirror Injector Segment Luminous Fluxes Fi ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
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 ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
sunlight System scheme 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 ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
Sulphur Lamp Å continuous spectrum, close to sunlight Spektrale Verteilung der Strahlungsemission der Schwefellampe Å low IR- and UV-Radiation Å high system luminous efficiency (90 lm/W) Å dimmable (20 - 100%) Å long lifetime Å nearly flicker-free Å nonpolluting (no mercury) ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
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 photometric measurements on hollow light guides ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
Influence of the End Mirror ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
LID - HLG Segment 3 -dimensional view ARTHELIO - Project Overview 2 -dimensional view Ener. Build Thematic Group Meeting
LID of a HLG 180° output angle 1 m ARTHELIO - Project Overview 4 m 7 m 12 m Ener. Build Thematic Group Meeting
LID of a HLG 90° output angle 1 m ARTHELIO - Project Overview 4 m 7 m 12 m Ener. Build Thematic Group Meeting
Demonstration Object TUB Heliostat ARTHELIO - Project Overview Lightpipeinstallation Ener. Build Thematic Group Meeting
Prototype 1: Carpiano, Italy ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
Prototype 1: Carpiano, Italy Sketch of the Daylighting Part ARTHELIO - Project Overview Lens Film Ener. Build Thematic Group Meeting
Prototype 2: Berlin Heliostat Sulphur Lamp Mixing Unit Lightpipes ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
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) ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
Validation of Measurement Data Installation of a Lightpipe-system Measuring the Illuminance Distr. C: Comparison of the Results Photometry at the Lightpipe ARTHELIO - Project Overview Simulation of the Illuminated Scene Ener. Build Thematic Group Meeting
Comparison with Light Plannning Software Tools Results of Comparison: ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
Expected Results • • Enhancement of Visual Comfort in Deeper Building Interiors • 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 Reduction of Costs for Electric Energy, Heating/Cooling and Maintenance ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
End of Presentation Thank you for your attention! ARTHELIO - Project Overview Ener. Build Thematic Group Meeting
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