Solid oxide fuel cell systems, operating at high temperature, have been the subject of very few optical diagnostic investigations. As a first stage, broadband imaging pyrometry using a visible CCD camera has been demonstrated as a method of locating and quantifying fuel leaks under operating conditions in single development modules. Investigations of methods to gain optical access to complete operating fuel cell systems to carry out near infrared gas phase spectroscopy are on-going and will be discussed.

© 2004 Optical Society of America

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