Projects per year
Abstract
Exhaust gas temperature (EGT) is a key parameter in diagnosing the health of gas turbine engines (GTEs). In this article, we propose a model-driven spectroscopic network with strong generalizability to monitor the EGT rapidly and accurately. The proposed network relies on data obtained from a well-proven temperature measurement technique, i.e., wavelength modulation spectroscopy (WMS), with the novelty of introducing an underlying physical absorption model and building a hybrid dataset from simulation and experiment. This hybrid model-driven (HMD) network enables strong noise resistance of the neural network against real-world experimental data. The proposed network is assessed by in situ measurements of EGT on an aero-GTE at millisecond-level temporal response. Experimental results indicate that the proposed network substantially outperforms previous neural-network methods in terms of accuracy and precision of the measured EGT when the GTE is steadily loaded.
| Original language | English |
|---|---|
| Article number | 2531710 |
| Pages (from-to) | 1-10 |
| Number of pages | 1 |
| Journal | IEEE Transactions on Instrumentation and Measurement |
| Volume | 72 |
| Early online date | 27 Oct 2023 |
| DOIs | |
| Publication status | E-pub ahead of print - 27 Oct 2023 |
Keywords / Materials (for Non-textual outputs)
- Temperature measurement
- Measurement by laser beam
- Absorption
- Gas lasers
- Fitting
- Data models
- Spectroscopy
- signal processing
- wavelength modulation spectroscopy (WMS)
- Deep neural network (DNN)
- gas turbine engine (GTE)
- exhaust gas temperature (EGT)
Fingerprint
Dive into the research topics of 'Hybrid Model-Driven Spectroscopic Network for Rapid Retrieval of Turbine Exhaust Temperature'. Together they form a unique fingerprint.Projects
- 2 Finished
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Laser Imaging of Turbine Engine Combustion Species (LITECS)
Mccann, H. (Principal Investigator), Liu, C. (Co-investigator) & Polydorides, N. (Co-investigator)
1/09/20 → 31/08/24
Project: Research
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In-situ Chemical Measurement and Imaging Diagnostics for Energy Process Engineering
Mccann, H. (Principal Investigator), Jia, J. (Co-investigator), Linne, M. (Co-investigator), Peterson, B. (Co-investigator) & Polydorides, N. (Co-investigator)
1/10/16 → 30/09/21
Project: Research