This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Heat Exchanger Fouling Detection in Aircraft Environmental Control Systems
Technical Paper
2012-01-2107
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The operating environment of aircraft causes accumulation and build-up of contamination on both the narrowest passages of the ECS (Environmental Control System) i.e: the heat exchangers. Accumulated contamination may lead to reduction of performance over time, and in some case to failures causing AOG (Aircraft on Ground), customer dissatisfaction and elevated repair costs. Airframers/airlines eschew fixed maintenance cleaning intervals because of the high cost of removing and cleaning these devices preferring instead to rely on on-condition maintenance. In addition, on-wing cleaning is t impractical because of installation constrains.
Hence, it is desirable to have a contamination monitoring that could alert the maintenance crew in advance to prepare and minimize disruption when contamination levels exceed acceptable thresholds. Two methods are proposed to achieve this task, The effectiveness of these methods are demonstrated using analytical and computational tools.
Recommended Content
| Technical Paper | Calculation of Temperature and Energy Losses in PCA Ducting |
| Technical Paper | Laboratory Test Means Scalable to the Test |
| Technical Paper | Advanced Technology Servoactuator |
Authors
Citation
Fellague, K., Nwadiogbu, E., Menon, S., Borghese, J. et al., "Heat Exchanger Fouling Detection in Aircraft Environmental Control Systems," SAE Technical Paper 2012-01-2107, 2012, https://doi.org/10.4271/2012-01-2107.Also In
References
- Jonsson, Gudmundur R. et al. “Use of extended Kalman filtering in detecting fouling in heat exchangers” International Journal of Heat and Mass Transfer 50 2007 2643 2655
- Taborek, J. et al. “Fouling: The Major Unresolved Problem in Heat Transfer” Chemical Engineering Progress 68 2 Feb. 1972
- Shah, Shoaib Liu, Guangjun Greatrix, David R. “On-line Fouling Detection of Aircraft Control System Cross Flow Heat Exchangers” Proceedings of the 2009 IEEE International Conference on Mechatronics and Automation 2940 2945 Changchun, China
- Wright, S. Andrews, G. Sabir, H. “A review of Heat Exchanger Fouling in the context of Air-Conditioning Systems, and the Potential for Electrostatic Filtering” Applied Thermal engineering 29 2009 2596 2609
- Kay, J M Nedderman, R M 1985 Fluid Mechanics and Transfer Processes Cambridge University Press
- Incropera, F. P. DeWitt, D. P. Bergman, T. L. Lavine, A. S. 2006 Fundamentals of Heat and Mass Transfer 6th John Wiley & Sons US
- Navidi, W. Statistics for Engineers and Scientists McGraw-Hill International Edition New York, USA 2006