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Anode Sub-System Development & Optimisation for SOFC systems

Objective

The high temperature fuel cell technologies have potential for high electrical efficiency, 45-60%, and total efficiency up to 95%. SOFC has the added benefit of offering commercial applications from 1 kW residential to several MW stationary units with high fuel flexibility. Whilst much effort is devoted to cell and stack issues, less attention has been paid to the components and sub-systems required for an operational system. Components and sub-systems such as fuel processing, heat and thermal management, humidification, fluid supply and management and power electronics are as crucial to the successful commercialisation of fuel cell systems as the cell and stack. This project is focused on the development of fuel and water management for SOFC systems. The fuel management, and especially recirculation, is a key question in achieving high electric efficiency and rejecting external water supply. The recirculation increases the fuel utilization rate and can provide the water needed in the reforming of fuels. However, with current SOFC systems the anode circulation has been problematic from controllability and reliability points of view, and hence there is a need to develop the overall solution of the anode subsystem. This project will evaluate different process approaches for fuel and water management, e.g. blower-based approach, ejector-based approach, and water circulation by condensing from the anode off-gas/exhaust gas and evaporating back to the fuel loop. The aspects taken into account in the conceptual analysis are effects on electric efficiency and process simplicity implying easiness of controllability, and requirements on diagnostics accuracy to provide insights into failure mode prevention. In the detailed evaluation, the suitable approaches are analysed more thoroughly in terms of component availability and reliability, achievable diagnostics accuracy, controllability, effects on reformer, mechanical integration feasibility to whole system, cost effects etc.

Field of science

  • /engineering and technology/environmental engineering/water management
  • /engineering and technology/environmental engineering/energy and fuels/fuel cell

Call for proposal

FCH-JU-2008-1
See other projects for this call

Funding Scheme

JTI-CP-FCH - Joint Technology Initiatives - Collaborative Project (FCH)

Coordinator

TEKNOLOGIAN TUTKIMUSKESKUS VTT
Address
Tekniikantie 4 A
02044 VTT Espoo
Finland
Activity type
Research Organisations
EU contribution
€ 270 411,40
Administrative Contact
Jari Kiviaho (Dr.)

Participants (5)

SOLIDPOWER SA
Switzerland
EU contribution
€ 293 025
Address
Avenue Des Sports 26
1400 Yverdon-les-bains
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Olivier Bucheli (Mr.)
EBZ Entwicklungs- und Vertriebsgesellschaft Brennstoffzelle mbH
Germany
EU contribution
€ 356 520,50
Address
Marschnerstraße 26
01307 Dresden
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Eva Spickenheuer (Ms.)
WARTSILA FINLAND OY
Finland
EU contribution
€ 465 046,10
Address
Tarhaajantie 2
65380 Vaasa
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Kim Eklund (Mr.)
HEXIS AG
Switzerland
EU contribution
€ 335 847,50
Address
Zum Park 5
8404 Winterthur
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Martin Liechti (Mr.)
FORSCHUNGSZENTRUM JULICH GMBH
Germany
EU contribution
€ 233 824,50
Address
Wilhelm Johnen Strasse
52428 Julich
Activity type
Research Organisations
Administrative Contact
Anne Bosch (Ms.)