کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6696805 1428350 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance evaluation of different air distribution systems for removal of concentrated emission contaminants by using vortex flow ventilation system
ترجمه فارسی عنوان
ارزیابی عملکرد سیستم های مختلف توزیع هوا برای حذف آلاینده های انتشاری متمرکز با استفاده از سیستم تهویه جریان گردابی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
An excellent air distribution system is a key factor to maintain indoor air quality, particularly in high-concentration contaminant-released buildings such as industrial halls. This study evaluated the performance of a new type of air distribution system, the vortex flow system, for contaminant removal and compared it with three other commonly used air distribution systems. The airflow fields and distribution of contaminants in large-space buildings with concentrated contaminant sources were studied. In addition, the mean age of air (MAA), air change efficiency, ventilation effectiveness, and mean residence time (MRT) of the contaminants were used to evaluate the four air distribution systems. The results of this study illustrated the significance of the air distribution system on the ventilation performance. Owing to the flow characteristics of the column vortex, the contaminants released from the source in the vortex flow system were limited by the negative pressure gradient near the center of the vortex zone and rapidly moved upward along the vortex core, resulting in a higher ventilation efficiency of contaminant removal with a lower ventilation flow rate. The results demonstrated the application potential of the vortex flow system in large-space buildings with concentrated emission contaminants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Building and Environment - Volume 142, September 2018, Pages 211-220
نویسندگان
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