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Research Article

Numerical modeling of particle deposition in the environmental control systems of commercial airliners on ground

Yudi Liu1Qing Cao1Wei Liu1,4Chao-Hsin Lin2Daniel Wei3Steven Baughcum2Zhengwei Long1Xiong Shen1( )Qingyan Chen4,1
Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
The Boeing Company, Seattle, USA
Boeing Research & Technology—China, Beijing, China
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
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Abstract

The environmental control system (ECS) of a commercial airplane supplies air to the cabin in order to maintain a safe, comfortable, and healthy environment for passengers and crew members. Because about half of the air supplied to the cabin is outside air, atmosphere particles could deposit in the ECS before entering the cabin. This investigation developed a model to calculate the particle deposition rates in the ECS for different particle sizes on the basis of a set of empirical equations from the literature. The model was used to predict particle deposition in five types of commercial airplanes (a regional jet, Boeing 737-800, Airbus 319, Airbus 320, and MD-82). The predicted results were compared with data measured in-flight or during operation on the ground and agreed well with the measured data. Both the simulated and measured results showed that almost all the large particles (dp ≥ 5.0 μm) and 75% of small particles (dp = 0.3–5.0 μm) were deposited in the ECS. Most of the particle deposition occurred near the entrance to the ECS where the geometry was the most complex.

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Building Simulation
Pages 265-275
Cite this article:
Liu Y, Cao Q, Liu W, et al. Numerical modeling of particle deposition in the environmental control systems of commercial airliners on ground. Building Simulation, 2017, 10(2): 265-275. https://doi.org/10.1007/s12273-016-0323-2

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Received: 29 April 2016
Revised: 24 July 2016
Accepted: 05 August 2016
Published: 20 September 2016
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2016
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