HANNOVER MESSE 2007 Current project

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Hannover Messe

Deutsche Messe AG

 

GROUP EXHIBIT H2+FC 2007 Exhibitors 2007
 
     
   
     
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Institut für Technische Thermodynamik

Stuttgart, Germany
Years of Participation:
1995, '97, '98, '99,
'00, '01, '02, '03,
'04, '05, '06
     
Number of employees: 160
General Email address: werner.hoyer@dlr.de
 

Company Interests:
DLR is Germany's national research center for aeronautics and space. Its extensive research and development work is integrated into national and international cooperative ventures.
Approximately 5.100 people are employed in DLR's 27 institutes and facilities at eight locations in Germany.
The Institute of Technical Thermodynamics in Stuttgart (with additional sites in Cologne-Porz and Almeria, Spain) focuses its efforts on the realisation of high-efficiency energy conversion technologies useable and promoting the introduction of renewable energy sources. A total of 145 staff is dedicated to this task, whether through studies, fundamental laboratory research or the development of pilot facilities.

Its topics are:
• Solar research
• Systems analysis and technology assessment
• Thermal process technology

In electrochemical energy conversion the main fields of investigation are fuel cell technologies for low and high temperatures, regenerative fuel supply and the market introduction of complete fuel cell systems. Starting from fundamental electrochemical research, the institute develops innovative manufacturing processes, diagnostics and system concepts for stationary, mobile and portable applications.
The activities in the field of fuel cells are mainly devoted to improving power density, increasing life-time and reducing cost of fuel cells and stacks. DLR is mainly active in research and development of fuel cells for aircraft applications, auxiliary power units (APUs) as well as stationary energy supply. Diagnostic methods - like innovative approaches to measure the local current density and temperature with high resolution - have been developed at the Institute. Controls of cell and stacks based on the detailed information obtained from these measurements are under development enabling self-regulating of cells and stacks. DLR has developed proprietary manufacturing methods for low and high temperature fuel cells. For polymer electrolyte fuel cells a low cost, dry rolling technique for membrane-electrode production is used which has shown superior performance especially for direct methanol fuel cells. But also for hydrogen polymer electrolyte fuel cells this manufacturing method stands out regarding its cost-effectiveness and flexibility. Thin layer solid oxide fuel cells (SOFC) manufactured by plasma spraying in planar design for temperatures around and below 800 °C have been developed. The metal-supported cells of DLR are especially suited for dynamic operation and are stable against fast temperature changes and redox cycles. Therefore, they are designed to be used as engine independent electrical power sources (Auxiliary Power Units (APU)).

 
News at HANNOVER MESSE 2007:
The Institute has announced in the past the development of an airborne fuel cell system HyFish to demonstrate superior performance regarding gravimetric power density possible even at lower power levels. Recently, the first flight of the aircraft was accomplished and a video is shown on the DLR exhibit. The unmanned aircraft HyFish is ideally suited to demonstrate the performance of a fuel cell system in a challenging environment. The aircraft was constructed based on the development by the Swiss company SmartFish GmbH, because the aircraft design combines advantageous usable volume and weight. The specifications of the model are: length 1.2 m, wingspan 1 m total weight 6 kg max. air speed 200 km/h Impeller 1 kW , max. 16 N thrust. The fuel cell system was designed and realized in cooperation with industrial partners (Horizon, Drukon, Luxfer, BaltiCo, TZU-Ainet). The system performed according to our best expectations on the test bench and during flight. The system demonstrated a nominal power of 1kW at 3 kg weight incl. H2 Tank which is unmatched at this power level.
DLR has also demonstrated for the first time the operation of fuel cell and fuel cell systems at low-pressures of 0.2 bar (abs) which correspond to a flight height of 12000 m. This result is important to allow a design and lay-out of fuel cells for aircraft application. DLR is exhibiting a running fuel cell test station where cells are tested at these reduced pressures.
DLR has also achieved a significant step towards commercialization of portable fuel cells with the Power Pack demonstrator. The restrictions of operating time in indoor and outdoor applications associated with accumulator capacity can be overcome with this compact hydrogen powered fuel cell system. The demonstrator is the result of DLR research and the development skills of DMT GmbH. The Priority of the development is a simplified hardware design and a compact architecture. This could be realized by combining the extensive experience of DLR in low-power fuel cell systems and the experience in prototyping of DMT GmbH . The functional packaging of Tricon Design AG offers a 12V power outlet for various applications. The compact (400x180x400mm) air-cooled system with minimal internal consumption posses a hydrogen cartridge with snap closing and can deliver ca. 330 Wh at nominal power of 300 W and a weight of ca. 12 kg including the hydrogen storage.
 
Main activities:
• Catalysts
• Ceramics
• Coating
• Control systems
• Education and demonstration
• Electrolysers
• Fuel processing
• H2/FC Initiative
• Hydrogen production
• Hydrogen storage
• Mobile fuel cells
• Portable fuel cells
• Research institution
• Stationary fuel cells
• Test systems for fuel cells
• AFC
• DMFC
• PEMFC
• SOFC
• Diagnostic Methods for Fuel Cells
 
From left to right: Ing. (grad.) Werner Hoyer - German Aerospace Center, Electrochemical Energy Technology
From left to right: Ing. (grad.) Werner Hoyer, German Aerospace Center, Electrochemical Energy Technology Prof. Dr. Angelika Heinzel, University Duesburg, ZBT (Zentrum für Brennstoffzellen-Technology) Dipl.-Phys. Erich Gülzow, German Aerospace Center, Head of Section Cell and Stacks Dipl. Ing. Till Kaz, German Aerospace Center, Electrochemical Energy Technology
 
From left to right: Oleg Maslov - Polarmar Arkhangelsk, Managing Director
From left to right: Oleg Maslov - Polarmar Arkhangelsk, Managing Director Dipl. Phys. Regine Reißner, German Aerospace Center, Electrochemical Energy Technology
Exhibit: HyFish Flying Fuel Cell Demonstrator
 
From left to right: Oleg Maslov - Polarmar Arkhangelsk, Managing Director
From left to right: Oleg Maslov, Polarmar Arkhangelsk, Managing Director
Dipl. Phys. Regine Reißner, German Aerospace Center, Electrochemical Energy Technology
 
xhibit: In-Situ Current Density Measurement for Fuel Cells
Exhibit: In-Situ Current Density Measurement for Fuel Cells
   
   
Forum Presentation:
Speaker:

Prof. Dr. K. Andreas Friedrich

Topic:
From Fundamentals to Efficient Systems

Date:
Tuesday, April 17, 2:20 pm

   

The fuel cell research of DLR is mainly devoted to improving power density, increasing life-time and reducing cost of fuel cells and stacks. DLR as the national aerospace research center is especially interested in the development of fuel cells for aircraft applications. DLR Stuttgart therefore has tested for the first time worldwide fuel cell systems and cells at low-pressure conditions of 200 mbarabs. This low pressure corresponds to a cruising height of ca. 12.000 m. The measurements of power density at different aircraft conditions allow the design of an optimized aircraft fuel cell system for the cruising conditions as well as for departure and landing conditions. Detailed dynamic models of complex systems will be improved with this experimental input leading to a precise projection of different system architectures. The displayed exhibit shows the operation of a single cell with special bipolar plates at low-pressures based on printed circuit board technology enabling the measurement of current distributions.
DLR is developing in cooperation with Plansee SE and Sulzer-Metco as strategic partners thin layer solid oxide fuel cells (SOFC) manufactured by plasma spraying in planar design for temperatures around and below 800 °C. The metal-supported cells of DLR are especially suited for dynamic operation and are stable against fast temperature changes and redox- cycles. Therefore, they are designed to be used as engine independent electrical power sources in transport applications.
A further exhibit of DLR shows the progress achieved in the development of portable fuel cell systems. The Power Pack is the result of the extensive expertise of DLR with fuel cell technology and the long-standing experience of DMT GmbH with prototyping of innovative products. The functional enclosure designed by Tricon Design AG offers a 12 V power socket. The compact (400x180x400mm) air-cooled system with minimal peripheral energy consumption posses an integrated hydrogen cartridge with snap closing. It offers a power of ca. 330 Wh with a nominal power of 300 W with a weight of ca. 12 kg including storage.
 
Booth No. G32/1
 

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