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Formation Mechanism Analysis and Detection of Charged Particles in an Aero-engine Gas Path
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 Title & Authors
Formation Mechanism Analysis and Detection of Charged Particles in an Aero-engine Gas Path
Wen, Zhenhua; Hou, Junxing; Jiang, ZhiQiang;
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 Abstract
The components of an aero-engine gas path cannot be monitored in a timely way due to a lack of real-time monitoring technologies. As an attempt to address this problem, we have conducted research on a condition monitoring technology based on the charging characteristics of particles in an aero-engine gas path, and emphatically analyze the formation of particles in an aero-engine gas path, the charging mechanism of carbon particles and the factors that influence the charge quantity and polarity. The verification experiments are performed on the simulated experiment platform and a turbo-shaft engine test bench. The results show the carbon particles` carry charge, and an obvious change in the total electrostatic charge level in the aero-engine gas path due to the increased carbon particles produced by burning or abnormal metal particles; the charge number is related to the size of particles, and the bigger carbon particles carry a negative charge and metal particles carry a positive charge; the change in engine power can lead to an obvious change in the level of electrostatic charge in the gas path, and the change in electrostatic charge results from the extra carbon particles formed in the rich-oil burning process. The research provides a reference for establishing the baseline of electrostatic charge while the engine runs on different power. The study also demonstrates the validity of the electrostatic monitoring technology and establishes a base for developing the application of electrostatic monitoring technology in aero-engines.
 Keywords
Aero-Engine;Electrostatic Monitoring;Condition Monitoring;Charging Particles;
 Language
English
 Cited by
 References
1.
Carter T J., "Common failures in gas turbine blades", Engineering Failure Analysis, Vol. 12, No. 2, 2005, pp. 237-247. crossref(new window)

2.
Balthasar M, Mauss F, and Wang H., "A computational study of the thermal ionization of soot particles and its effect on their growth in laminar premixed flames", Combustion and Flame, Vol. 129, No. 1-2, 2002, pp. 204-216. crossref(new window)

3.
Robert P. Couch., "Detecting Abnormal Turbine Engine Deterioration Using Electrostatic Methods", Journal of Aircraft, Vol. 15, No. 10, 1978, pp. 692-695. crossref(new window)

4.
Novis A, Powrie H, and Novis A., "PHM Sensor Implementation in the Real World - a Status Report", IEEE Aerospace Conference Proceedings, 2006, pp. 1-9.

5.
Wen Zhenhua, Zuo Hongfu, Pecht, M.G., "Electrostatic monitoring of gas path debris for aero-engines", IEEE Transactions on Reliability, Vol. 60, No. 1, 2011, pp. 33-40. crossref(new window)

6.
Wen Zhenhua, Zuo Hongfu, and Li Yaohua., "Gas path debris electrostatic monitoring technology and experiment", Journal of Aerospace Power, Vol. 23, No. 12, 2008, pp. 2321-2326.

7.
Wen Zhenhua, Zuo Hongfu, and Wang Hua, et al., "Characters of sensor for aero engine gas path electrostatic monitoring", Transducer and Micro-system Technologies, Vol. 27, No. 11, 2008, pp. 28-31.

8.
Wen Zhenhua, and Zuo Hongfu., "Electrostatic Monitoring Signal Processing Method for Aero-engines Gas Path Based on ICA", Mechanical Science and Technology for Aerospace Engineering, Vol. 30, No. 11, 2011, pp. 1872-1876.

9.
Wen Zhenhua, Zuo Hongfu, and Li Yaohua., "New method for aero engine gas path monitoring", Journal of Nanjing University of Aeronautics & Astronautics, Vol. 41, No. 2, 2009, pp. 248-252.

10.
Li Yaohua, Zuo Hongfu, and Liu Pengpeng., "Gas path electrostatic monitoring of turbo-shaft engine: an exploratory experiment", Acta Aeronautica et Astronautica Sinica, Vol. 31, No. 11, 2012, pp. 2174-2181.

11.
Yan Chuanjun, and Fan Wei., Combustion theory, Northwestern Polytechnical University Press, Xi'an, 2005.

12.
Sorokin A, Vancassel X, and Mirabel P., "Emission of ions and charged soot particles by aircraft engines", "Atmospheric Chemistry and Physics", Vol. 3, No. 2, 2003, pp. 325-334. crossref(new window)

13.
Sorokin, A, and Arnold, F., "Organic positive ions in aircraft gas-turbine engine exhaust", Atmospheric Environment, Vol. 40, No. 32, 2006, pp. 6077-6087. crossref(new window)

14.
Sorokin, A, and Arnold, F., "Electrically charged small soot particles in the exhaust of an aircraft gas-turbine engine combustor: comparison of model and experiment", Atmospheric Environment, Vol. 37, No. 17, 2004, pp. 2611-2618.

15.
Powrie H, and Novis A., "Gas path debris monitoring for F-35 joint strike fighter propulsion system PHM", Proceeding of Proceedings of IEEE Aerospace Conference. Montana, USA, 2006, pp. 1-8.

16.
Ren Jun, Shen Jian, and Lu Shouci, Particle dispersion Science and Technology, Chemical Industry Press, Beijing, 2005, pp. 124-129.