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Operation of a SOFC CHP system with wood gas from a fixed-bed updraft gasifier

: Weißensteiner, Stefan; Hauth, Martin; Seidl, Michael; Soukup, Nikolaus; Sallai, Christopher; Obernberger, Ingwald; Brunner, Thomas; Ramerstorfer, Christian; Megel, Stefan; Schnetter, Jens


Eguchi, K. ; Electrochemical Society -ECS-:
Solid Oxide Fuel Cells 16 : September 8, 2019 - September 13, 2019, Kyoto, Japan
Pennington, NJ: ECS, 2019 (ECS transactions 91)
ISBN: 978-1-60768-874-7
ISBN: 978-1-62332-575-6
International Symposium on Solid Oxide Fuel Cells (SOFC) <16, 2019, Kyoto>
European Commission EC
H2020; 641229; FlexiFuel-SOFC
Development of a new and highly efficient micro-scale CHP system based on fuel-flexible gasification and a SOFC
Conference Paper
Fraunhofer IKTS ()
biomass gasifier; updraft gasifier; simulation software; SOFC system; product gas; high dynamic; electrical efficiency; dynamic operations; software testing; solid oxide fuel cells (SOFCs)

This paper will show the results of operating an SOFC system with the product gas from a biomass gasifier for more than 200 hours under constant and dynamic operation. The SOFC system was operated at different load cases, 50 % and 100 % load, and achieved a gross electrical efficiency of 42 %. It shows a high dynamic behavior, so that electric load changes could be performed within a few seconds from full load to part load. Furthermore, AVL developed a simulation software by which a SOFC stack model can be simulated dynamically. A comparison of the measured and simulated values of the stack module will be presented. By using the results of the test runs the software could be validated successfully.