Theoretical aspects of an electrostatic aerosol filter for civilian turbofan engines

The paper addresses the problem of aerosol filtration in turbofan engines. The current problem of very fine aerosol admission is the impossibility for mechanical filtration; another aspect of the problem is the high mass flow of air to be filtered. Non-attended, the aerosol admission can -and usuall...

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Bibliographic Details
Published in:INCAS bulletin 2012-01, Vol.4 (1), p.23-30
Main Author: Dragan, Valeriu
Format: Article
Language:English
Subjects:
aerosol kinematics
Aerosols
Aircraft safety
dust admission
Dust collectors
electrostatic filtering
Electrostatics
Filtration
Mathematical analysis
Turbines
turbofan engine
Turbofan engines
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Summary:The paper addresses the problem of aerosol filtration in turbofan engines. The current problem of very fine aerosol admission is the impossibility for mechanical filtration; another aspect of the problem is the high mass flow of air to be filtered. Non-attended, the aerosol admission can -and usually does- lead to clogging of turbine cooling passages and can damage the engine completely. The approach is theoretical and relies on the principles of electrostatic dust collectors known in other industries. An estimative equation is deduced in order to quantify the electrical charge required to obtain the desired filtration. Although the device still needs more theoretical and experimental work, it could one day be used as a means of increasing the safety of airplanes passing trough an aerosol laden mass of air. [PUBLICATION ABSTRACT]
ISSN:2066-8201
2247-4528
DOI:10.13111/2066-8201.2012.4.1.3