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Fiber-coupled phosphor thermometry for wall temperature measurements in a full-scale hydrogen gas turbine combustor
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- Nau, Patrick (author)
- German Aerospace Center (DLR)
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- Müller, Andre (author)
- University of Duisburg-Essen
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- Petry, Niklas (author)
- German Aerospace Center (DLR)
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- (creator_code:org_t)
- 2023
- 2023
- English.
- In: Measurement Science and Technology. - 0957-0233. ; 34:10
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Online wall temperatures were measured with fiber-coupled phosphor thermometry in a full-scale gas turbine combustor. The combustor was operated with natural gas and up to 100 vol% hydrogen at engine-relevant conditions. Two phosphors were tested for this application, namely YAG:Dy and YAG:Tm;Li. Although YAG:Tm;Li seemed to be the most promising phosphor for this application, it turned out to be incompatible with the used setup due to a strong interfering signal generated by the laser in the used fiber setup. A strategy to compensate for interferences from flame emissions during natural gas operation was developed. With this strategy it was possible to obtain single-shot temperature measurements at 15 Hz and a precision of 2-7 K for a 1 s average.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- gas turbine
- hydrogen combustion
- phosphor thermometry
- wall temperature
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Richter, Mattias
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- Witzel, Benjamin
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- Lund University
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