کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6340146 | 1620382 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Source apportionment of airborne particles in commercial aircraft cabin environment: Contributions from outside and inside of cabin
ترجمه فارسی عنوان
تقسیم منبع ذرات هوائی در محیط کابین هواپیما تجاری: مقادیر خارج از داخل و داخل کابین
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کلمات کلیدی
کابین هواپیما، غلظت ذرات، توزیع اندازه، نرخ جریان هوا، تقسیم بندی منبع،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
چکیده انگلیسی
Airborne particles are an important type of air pollutants in aircraft cabin. Finding sources of particles is conducive to taking appropriate measures to remove them. In this study, measurements of concentration and size distribution of particles larger than 0.3 μm (PM>0.3) were made on nine short haul flights from September 2012 to March 2013. Particle counts in supply air and breathing zone air were both obtained. Results indicate that the number concentrations of particles ranged from 3.6 Ã 102 counts Lâ1 to 1.2 Ã 105 counts Lâ1 in supply air and breathing zone air, and they first decreased and then increased in general during the flight duration. Peaks of particle concentration were found at climbing, descending, and cruising phases in several flights. Percentages of particle concentration in breathing zone contributed by the bleed air (originated from outside) and cabin interior sources were calculated. The bleed air ratios, outside airflow rates and total airflow rates were calculated by using carbon dioxide as a ventilation tracer in five of the nine flights. The calculated results indicate that PM>0.3 in breathing zone mainly came from unfiltered bleed air, especially for particle sizes from 0.3 to 2.0 μm. And for particles larger than 2.0 μm, contributions from the bleed air and cabin interior were both important. The results would be useful for developing better cabin air quality control strategies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 89, June 2014, Pages 119-128
Journal: Atmospheric Environment - Volume 89, June 2014, Pages 119-128
نویسندگان
Zheng Li, Jun Guan, Xudong Yang Xudong Yang, Chao-Hsin Lin,