Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure

Lee Weller; Priyav Shah; Anthony Giles; Francesca De Domenico; Steve Morris; Benjamin A.O. Williams; Simone Hochgreb

doi:10.1115/GT2023-101185

Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure

Lee Weller^*, Priyav Shah, Anthony Giles, Francesca De Domenico, Steve Morris, Benjamin A.O. Williams, Simone Hochgreb

^*Corresponding author for this work

Flight Performance and Propulsion

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

Laser-Induced Grating Spectroscopy (LIGS) was applied in a high-pressure combustion facility. Instantaneous (sub-μs), spatially resolved (within 5 mm) measurements of temperature and molar fractions of water were obtained using thermal and electrostrictive LIGS signals. Temperatures up to 1800 K and water molar fractions between 0.01 and 0.12 were measured. A new analytic approach was developed to extract temperature from the frequencies of the measured signal within the flame brush region, where mixtures contain both burnt and unburnt gases. Mean product temperatures are shown to be 8% lower than the adiabatic temperatures for the nominal equivalence ratio, and 14% higher than measurements made with a thermocouple, uncorrected for radiation losses. This work represents the first application of LIGS to a high-pressure, turbulent swirling flame, opening up the potential for future uses in other real world applications. Challenges associated with the deployment of the technique are described, as are potential measures to overcome these difficulties.

Original language	English
Title of host publication	Controls, Diagnostics, and Instrumentation
Publisher	The American Society of Mechanical Engineers (ASME)
Number of pages	11
ISBN (Electronic)	9780791886977
DOIs	https://doi.org/10.1115/GT2023-101185
Publication status	Published - 2023
Event	ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023 - Boston, United States Duration: 26 Jun 2023 → 30 Jun 2023

Publication series

Name	Proceedings of the ASME Turbo Expo
Volume	4

Conference

Conference	ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023
Country/Territory	United States
City	Boston
Period	26/06/23 → 30/06/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Electrostrictive
High-pressure combustion
LIGS
Spatial
Temperature
Thermal
Water

Access to Document

10.1115/GT2023-101185

FMANU-GTP-23-1338Final published version, 1.34 MB

Cite this

Weller, L., Shah, P., Giles, A., De Domenico, F., Morris, S., Williams, B. A. O., & Hochgreb, S. (2023). Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure. In Controls, Diagnostics, and Instrumentation Article GTP-23-1338 (Proceedings of the ASME Turbo Expo; Vol. 4). The American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/GT2023-101185

@inproceedings{3a51189f1ccf45578a863b207ba79c38,

title = "Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure",

abstract = "Laser-Induced Grating Spectroscopy (LIGS) was applied in a high-pressure combustion facility. Instantaneous (sub-μs), spatially resolved (within 5 mm) measurements of temperature and molar fractions of water were obtained using thermal and electrostrictive LIGS signals. Temperatures up to 1800 K and water molar fractions between 0.01 and 0.12 were measured. A new analytic approach was developed to extract temperature from the frequencies of the measured signal within the flame brush region, where mixtures contain both burnt and unburnt gases. Mean product temperatures are shown to be 8% lower than the adiabatic temperatures for the nominal equivalence ratio, and 14% higher than measurements made with a thermocouple, uncorrected for radiation losses. This work represents the first application of LIGS to a high-pressure, turbulent swirling flame, opening up the potential for future uses in other real world applications. Challenges associated with the deployment of the technique are described, as are potential measures to overcome these difficulties.",

keywords = "Electrostrictive, High-pressure combustion, LIGS, Spatial, Temperature, Thermal, Water",

author = "Lee Weller and Priyav Shah and Anthony Giles and {De Domenico}, Francesca and Steve Morris and Williams, {Benjamin A.O.} and Simone Hochgreb",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ; ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023 ; Conference date: 26-06-2023 Through 30-06-2023",

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doi = "10.1115/GT2023-101185",

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Weller, L, Shah, P, Giles, A, De Domenico, F, Morris, S, Williams, BAO & Hochgreb, S 2023, Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure. in Controls, Diagnostics, and Instrumentation., GTP-23-1338, Proceedings of the ASME Turbo Expo, vol. 4, The American Society of Mechanical Engineers (ASME), ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023, Boston, United States, 26/06/23. https://doi.org/10.1115/GT2023-101185

Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure. / Weller, Lee; Shah, Priyav; Giles, Anthony et al.
Controls, Diagnostics, and Instrumentation. The American Society of Mechanical Engineers (ASME), 2023. GTP-23-1338 (Proceedings of the ASME Turbo Expo; Vol. 4).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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T1 - Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure

AU - Weller, Lee

AU - Shah, Priyav

AU - Giles, Anthony

AU - De Domenico, Francesca

AU - Morris, Steve

AU - Williams, Benjamin A.O.

AU - Hochgreb, Simone

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2023

Y1 - 2023

N2 - Laser-Induced Grating Spectroscopy (LIGS) was applied in a high-pressure combustion facility. Instantaneous (sub-μs), spatially resolved (within 5 mm) measurements of temperature and molar fractions of water were obtained using thermal and electrostrictive LIGS signals. Temperatures up to 1800 K and water molar fractions between 0.01 and 0.12 were measured. A new analytic approach was developed to extract temperature from the frequencies of the measured signal within the flame brush region, where mixtures contain both burnt and unburnt gases. Mean product temperatures are shown to be 8% lower than the adiabatic temperatures for the nominal equivalence ratio, and 14% higher than measurements made with a thermocouple, uncorrected for radiation losses. This work represents the first application of LIGS to a high-pressure, turbulent swirling flame, opening up the potential for future uses in other real world applications. Challenges associated with the deployment of the technique are described, as are potential measures to overcome these difficulties.

AB - Laser-Induced Grating Spectroscopy (LIGS) was applied in a high-pressure combustion facility. Instantaneous (sub-μs), spatially resolved (within 5 mm) measurements of temperature and molar fractions of water were obtained using thermal and electrostrictive LIGS signals. Temperatures up to 1800 K and water molar fractions between 0.01 and 0.12 were measured. A new analytic approach was developed to extract temperature from the frequencies of the measured signal within the flame brush region, where mixtures contain both burnt and unburnt gases. Mean product temperatures are shown to be 8% lower than the adiabatic temperatures for the nominal equivalence ratio, and 14% higher than measurements made with a thermocouple, uncorrected for radiation losses. This work represents the first application of LIGS to a high-pressure, turbulent swirling flame, opening up the potential for future uses in other real world applications. Challenges associated with the deployment of the technique are described, as are potential measures to overcome these difficulties.

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BT - Controls, Diagnostics, and Instrumentation

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Weller L, Shah P, Giles A, De Domenico F, Morris S, Williams BAO et al. Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure. In Controls, Diagnostics, and Instrumentation. The American Society of Mechanical Engineers (ASME). 2023. GTP-23-1338. (Proceedings of the ASME Turbo Expo). doi: 10.1115/GT2023-101185

Spatial Temperature and Water Molar Concentration Measurements Using Thermal and Electrostrictive Ligs During Operation of a Swirl Burner at Pressure

Abstract

Publication series

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Bibliographical note

Keywords

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