Fiber-coupled phosphor thermometry for wall temperature measurements in a full-scale hydrogen gas turbine combustor
(2023) In Measurement Science and Technology 34(10).- Abstract
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... (More)
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.
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- author
- Nau, Patrick ; Müller, Andre ; Petry, Niklas ; Nilsson, Sebastian LU ; Endres, Torsten ; Richter, Mattias LU and Witzel, Benjamin
- organization
- publishing date
- 2023-10
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- gas turbine, hydrogen combustion, phosphor thermometry, wall temperature
- in
- Measurement Science and Technology
- volume
- 34
- issue
- 10
- article number
- 104003
- publisher
- IOP Publishing
- external identifiers
-
- scopus:85165717677
- ISSN
- 0957-0233
- DOI
- 10.1088/1361-6501/ace542
- language
- English
- LU publication?
- yes
- id
- bc32365d-dfaf-4e37-b210-2783f19880d0
- date added to LUP
- 2023-09-20 10:46:50
- date last changed
- 2023-11-07 10:38:48
@article{bc32365d-dfaf-4e37-b210-2783f19880d0, abstract = {{<p>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.</p>}}, author = {{Nau, Patrick and Müller, Andre and Petry, Niklas and Nilsson, Sebastian and Endres, Torsten and Richter, Mattias and Witzel, Benjamin}}, issn = {{0957-0233}}, keywords = {{gas turbine; hydrogen combustion; phosphor thermometry; wall temperature}}, language = {{eng}}, number = {{10}}, publisher = {{IOP Publishing}}, series = {{Measurement Science and Technology}}, title = {{Fiber-coupled phosphor thermometry for wall temperature measurements in a full-scale hydrogen gas turbine combustor}}, url = {{http://dx.doi.org/10.1088/1361-6501/ace542}}, doi = {{10.1088/1361-6501/ace542}}, volume = {{34}}, year = {{2023}}, }