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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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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

[email protected]


Content
Content

  • Organisation of the Project

  • System Idea

  • Measurements

  • Prototypes

  • Lighting Planning with HLG


Partners
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)


Organisation
Organisation


Hollow light guides

End Mirror

Lightpipe

Extractor

Injector

Segment Luminous Fluxes Fi

Hollow Light Guides


Advantages of hlg
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


System scheme
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


Sulphur lamp

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)


Goniophotometer
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



LID - HLG Segment

3-dimensional view

2-dimensional view


Lid of a hlg 180 output angle

1 m

4 m

7 m

12 m

LID of a HLG 180° output angle


Lid of a hlg 90 output angle

1 m

4 m

7 m

12 m

LID of a HLG 90° output angle


Demonstration object tub
Demonstration Object TUB

Lightpipe-

installation

Heliostat



Prototype 1 carpiano italy1
Prototype 1: Carpiano, Italy

Sketch of the Daylighting Part

Lens Film


Prototype 2 berlin

Heliostat

Sulphur Lamp

Mixing Unit

Lightpipes

Prototype 2: Berlin


Prototype 2 berlin1
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)


Validation of measurement data

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


Comparison with light plannning software tools

Results of Comparison:

Comparison with Light Plannning Software Tools


Expected results
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


End of presentation
End of Presentation

Thank you for

your attention!


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