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Title: Ageing of integrated-planar solid Oxide Fuel Cells
Author: Almutairi, Ghzzai
ISNI:       0000 0004 2741 625X
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2013
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The ageing of Solid Oxide Fuel Cells (SOFCs) is a key problem because of the requirement of 50,000 hours to their lifetime in many applications. At present, such performance is still not attainable because degradation occurs at more than 1% per thousand hours under practical test conditions. In this thesis, the ageing of the Rolls Royce Fuel Cell Systems (RRFCS)Integrated Planar Solid Oxide Fuel Cell (IP-SOFC) was studied under different operating conditions, especially by accelerated degradation testing (ADT), in order to investigate the fuel cell stability and degradation behaviour under non-steady operating conditions for further improvement of the systems. This work demonstrates that the long-term durability of the IP-SOFC is very good when pure hydrogen is used as fuel. However, the introducing of even a small amount of methane in fuel has demonstrated the capacity to damage the IP-SOFC through the formation of carbon deposits on the anode surface. Future work is therefore required to identify viable alternative materials and optimal operating conditions.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: TJ Mechanical engineering and machinery ; TP Chemical technology