Ion Sensor-Based Measurement Systems: Application to Combustion Monitoring in Gas Turbines

Addabbo, Tommaso; Fort, Ada; Mugnaini, Marco; Parri, Lorenzo; Allegorico, Maddalena; Ruggiero, Marco; Cioncolini, Stefano

doi:10.1109/tim.2019.2961483

Cited by 10 publications

(10 citation statements)

References 20 publications

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“…Preliminary research on electrical properties of a burner flame [13][14][15] has been conducted to determine its characteristics, including ion density and distribution, flame location and oscillation frequency. A negatively biased conducting plate or sensing probe that uses the burner as a reference electrode has been used to measure the ion density and its distribution in a flame [13].…”

Section: Introductionmentioning

confidence: 99%

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Flame Boundary Measurement Using an Electrostatic Sensor Array

Yan

et al. 2021

IEEE Trans. Instrum. Meas.

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Section: Introductionmentioning

confidence: 99%

“…A negatively biased conducting plate or sensing probe that uses the burner as a reference electrode has been used to measure the ion density and its distribution in a flame [13]. Ion-current sensors have been adopted for the measurement of the oscillation frequency of a burner flame [14].…”

Section: Introductionmentioning

confidence: 99%

Flame Boundary Measurement Using an Electrostatic Sensor Array

Yan

et al. 2021

IEEE Trans. Instrum. Meas.

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“…Electrostatic sensors have also been used to investigate the electrification of wind-blown sand to prevent damage to air traffic [158]. Significant research has been undertaken on the use of active ion current probes for flame detection or monitoring where the electrodes are biased using an external voltage source [69], [70], [159]- [162]. However, limited research has been conducted to utilise passive electrostatic sensors to monitor the flame characteristics [71], [72].…”

Section: F Further Development Of Current Applications and Possible mentioning

confidence: 99%

Electrostatic sensors – Their principles and applications

Yan

Wang

et al. 2021

Measurement

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“…Earlier studies of burner flames [1][2][3][4] are concerned mostly with optical and thermoacoustic properties of flames and little on their electrical properties. Chemical reactions in a flame produce charged species such as free electrons, ions, and soot particles [5][6][7][8]. The charge density and its spatial distribution in a flame are directly related to the chemical reactions, containing important information on the combustion processes [9].…”

Section: Introductionmentioning

confidence: 99%

Measurement of Charge Density in Methane Fired Diffusion and Premixed Flames Using Electrostatic Probes

Yan

2021

IEEE Sensors J.

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The charge density in a flame contains important information about the combustion processes that is difficult to obtain due to fast, complex, and highly exothermic reactions. This paper presents a study of using electrostatic probes to measure the charge density in methane fired diffusion and premixed flames. The sensing principle, practical design, and performance assessment of the electrostatic probe are presented.Comparative experimental studies with a reference ion-current sensor carried out on a combustion test rig indicate that the fluctuation of the signal from the electrostatic probe arises from the variation in the charge density in a flame. A dimensionless index, combining the average of local peak values in the electrostatic signal with the flame oscillation frequency, is adopted as an indicator of the charge density. Experimental results demonstrate that the charge density in a methane diffusion flame has an increasing trend with the fuel flowrate varying from 0.80 L/min to 1.20 L/min. The charge density in a methane-air premixed flame yields a decreasing trend with the equivalence ratio ranging from 0.54 to 0.75, then increases and reaches a local peak at the equivalence ratio of 1.03, and continues to increase when the equivalence ratio varies from 1.03 to 3.50. The charge density in the inner cone is higher than that in the outer cone for diffusion and premixed flames. The results obtained suggest that the developed electrostatic probe and the index can be used to indicate the charge density in diffusion and premixed flames.

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Ion Sensor-Based Measurement Systems: Application to Combustion Monitoring in Gas Turbines

Cited by 10 publications

References 20 publications

Flame Boundary Measurement Using an Electrostatic Sensor Array

Flame Boundary Measurement Using an Electrostatic Sensor Array

Electrostatic sensors – Their principles and applications

Measurement of Charge Density in Methane Fired Diffusion and Premixed Flames Using Electrostatic Probes

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