"Numerical modeling of particle deposition in the environmental control" by Yudi Liu, Qing Cao et al.

Building Simulation: An International Journal

Article Title

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

Authors

Yudi Liu, Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University,
Qing Cao, Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University,
Wei Liu, Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
Chao-Hsin Lin, The Boeing Company, Seattle, USA
Daniel Wei, Boeing Research & Technology—China, Beijing, China
Steven Baughcum, The Boeing Company, Seattle, USA
Zhengwei Long, Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University,
Xiong Shen, Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University,
Qingyan Chen, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University,

Keywords

airplane, environmental control system, air quality, particulate matter, deposition

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 (d _p ≥ 5.0 μm) and 75% of small particles (d _p = 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.

DOI

https://doi.org/10.1007/s12273-016-0323-2

Publisher

Tsinghua University Press

Recommended Citation

Yudi Liu, Qing Cao, Wei Liu et al. Numerical modeling of particle deposition in the environmental control systems of commercial airliners on ground. Build Simul, 2017, 10(2): 265–275.

This document is currently not available here.

Request a Copy

COinS