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AUBELE
A self-sufficient LED street light powered by fuel cells
       - HarzOptics GmbH – an affiliated institute of Harz University -


                       Solid State and Organic Lighting (SOLED) | 11.-15.11.2012
HarzOptics – Research & Development
Products

• OPTOTEACH teaching system
• 3dB POF coupler / splitter
• Fiber lenses / fiber taper
• LED lighting

Services

• Optical metrology
• Research and development
• Consulting and project planning

Education and training

• Distance learning in optics
• Trainee education in optics




                     HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Agenda
- Motivation / Goals

- System set-up

  - Electrical part

  - Optical part

- Simulation

- Results

   HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Motivation
Two main reasons for project AUBELE

1. Energy savings

    • local authorities need to save costs and achieve climate goals
    • LED lighting is the most promising technology
    • Energy savings of up to 80% are possible
      (depending on the previously used light bulbs)

2. Autonomous operation

    • In rural areas, bus stops are often located outside of villages
      and are relatively far away from the nearest cable route



            HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Motivation
Costs for cable / digging (example):


Distance of a bus stop
to the next cable route:                                                                   800 m

Price for cable installation
(including excavation work):                                                               30 € / m


Costs in € for connection to the power grid: 24.000 €



         HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Goals / Lighting situation
Bus stop scenery
• 15 Lux: within 2 meters around the lamp
• 3 Lux: 10 meters on both sides in the direction of the street
• 1 Lux: 20 meters on both sides in the direction of the street
• 3 Lux: at the opposite side of the street




            HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Goals / Technical specification

• Compliance with the requirements of the lighting situation

• Minimizing the energy consumption of the lamp with LEDs

• Minimizing the hydrogen consumption

• Developing of a system based on a small fuel cell, a battery
  and an optional, complementary photovoltaic system

• Design of an intelligent control system

• Ground recessed installation (resistant to vandalism)

            HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
System setup
Block diagram of the AUBELE system




        HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Electrical part / Hydrogen fuel cell
• Hydrogen fuel cell:
  water cooled Schunk FC 42 stack
• Designed as a hybrid system:
  – Lamp is powered by battery
  – Fuel cell works as a battery
    charging system
• Frost-proof
Optional: photovoltaic system


          HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Electrical part / LED driver
• Self-developed circuit
• Microcontroller PIC
• Voltage-dependent PWM control
• Communication with fuel cell module
Optional:
• GSM-based radio, remote control and maintenance
• Radio clock
• Dimmable
• …

         HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Optical part / LED lamp

• Luxeon Rebel LEDs
• 8 LEDs, 2 of them equipped with lenses




         HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
LED lamp




HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Dialux pictures I

• hier Bilder von Dialux




         HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Results
• To fulfill the legal lighting requirements, the power
  consumption of the LED lamp could be minimized to 15 W
   The AUBELE LED lamp is optimized in regard to energy
  consumption, CO2 emission and light pollution reduction
• Hydrogen consumption: 60 l / year (1 bottle)
• Improved efficiency of management of the fuel cell system
• Self-monitoring of fuel cell, battery and LED lighting
• Optional: Integration of communications –
  GSM-based radio, remote control and maintenance

                Ready for sale – offered on demand

            HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Project partners
• EAB Elektro-Anlagenbau GmbH Rügen
  Responsible for the housing and mounting system

• argus electronic GmbH
  Responsible for the hybrid energy supply system

• Harz University of Applied Sciences / HarzOptics GmbH
  Responsible for the development of the LED lighting system

This project was funded by the
German Federal Ministry of Economics


            HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
Thank you for your attention

                  … any questions??



    HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)

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AUBELE - a self-sufficient LED street light powered by fuel cells

  • 1. AUBELE A self-sufficient LED street light powered by fuel cells - HarzOptics GmbH – an affiliated institute of Harz University - Solid State and Organic Lighting (SOLED) | 11.-15.11.2012
  • 2. HarzOptics – Research & Development Products • OPTOTEACH teaching system • 3dB POF coupler / splitter • Fiber lenses / fiber taper • LED lighting Services • Optical metrology • Research and development • Consulting and project planning Education and training • Distance learning in optics • Trainee education in optics HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 3. Agenda - Motivation / Goals - System set-up - Electrical part - Optical part - Simulation - Results HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 4. Motivation Two main reasons for project AUBELE 1. Energy savings • local authorities need to save costs and achieve climate goals • LED lighting is the most promising technology • Energy savings of up to 80% are possible (depending on the previously used light bulbs) 2. Autonomous operation • In rural areas, bus stops are often located outside of villages and are relatively far away from the nearest cable route HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 5. Motivation Costs for cable / digging (example): Distance of a bus stop to the next cable route: 800 m Price for cable installation (including excavation work): 30 € / m Costs in € for connection to the power grid: 24.000 € HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 6. Goals / Lighting situation Bus stop scenery • 15 Lux: within 2 meters around the lamp • 3 Lux: 10 meters on both sides in the direction of the street • 1 Lux: 20 meters on both sides in the direction of the street • 3 Lux: at the opposite side of the street HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 7. Goals / Technical specification • Compliance with the requirements of the lighting situation • Minimizing the energy consumption of the lamp with LEDs • Minimizing the hydrogen consumption • Developing of a system based on a small fuel cell, a battery and an optional, complementary photovoltaic system • Design of an intelligent control system • Ground recessed installation (resistant to vandalism) HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 8. System setup Block diagram of the AUBELE system HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 9. Electrical part / Hydrogen fuel cell • Hydrogen fuel cell: water cooled Schunk FC 42 stack • Designed as a hybrid system: – Lamp is powered by battery – Fuel cell works as a battery charging system • Frost-proof Optional: photovoltaic system HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 10. Electrical part / LED driver • Self-developed circuit • Microcontroller PIC • Voltage-dependent PWM control • Communication with fuel cell module Optional: • GSM-based radio, remote control and maintenance • Radio clock • Dimmable • … HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 11. Optical part / LED lamp • Luxeon Rebel LEDs • 8 LEDs, 2 of them equipped with lenses HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 12. LED lamp HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 13. Dialux pictures I • hier Bilder von Dialux HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
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  • 17. Results • To fulfill the legal lighting requirements, the power consumption of the LED lamp could be minimized to 15 W  The AUBELE LED lamp is optimized in regard to energy consumption, CO2 emission and light pollution reduction • Hydrogen consumption: 60 l / year (1 bottle) • Improved efficiency of management of the fuel cell system • Self-monitoring of fuel cell, battery and LED lighting • Optional: Integration of communications – GSM-based radio, remote control and maintenance Ready for sale – offered on demand HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 18. Project partners • EAB Elektro-Anlagenbau GmbH Rügen Responsible for the housing and mounting system • argus electronic GmbH Responsible for the hybrid energy supply system • Harz University of Applied Sciences / HarzOptics GmbH Responsible for the development of the LED lighting system This project was funded by the German Federal Ministry of Economics HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)
  • 19. Thank you for your attention … any questions?? HarzOptics GmbH | Jens-Uwe Just | 11.-15.11.2012 | Solid State and Organic Lighting (SOLED)