Optimal Pitch Angle of Jet Fans Based on Air Age Evaluation in Urban Highway Tunnels - Details

Author：

Indexed by：

Abstract：

The　jet　fans　bent　with　an　adequate　pitch　angle　can　reduce　the　loss　of　ventilation　effectiveness　caused　by　the　Coandă　effect.　To　determine　the　optimal　pitch　angle,　the　mean　air　age　(MAA)　calculated　by　the　Computational　Fluid　Dynamics　(CFD)　method　is　employed　to　evaluate　the　ventilation　effectiveness　in　urban　highway　tunnels,　and　the　jet　fans　in　tunnel　are　tested　with　pitch　angles　from　0°　to　12°.　The　results　show　that,　at　the　pitch　angle　of　7°,　the　MAA　is　13.62%　and　20.67%　younger　than　that　of　0°　for　the　full　and　clearance　spaces,　respectively.　Finally,　the　7°　is　determined　as　the　optimal　angle　for　the　jet　fan　to　greatly　improve　ventilation　effectiveness　and　save　installed　power　in　highway　tunnels.　©　2024　18th　Conference　of　the　International　Society　of　Indoor　Air　Quality　and　Climate,　INDOOR　AIR　2024　-　Conference　Program　and　Proceedings.　All　rights　reserved.

Keyword：

Air quality Computational fluid dynamics Indoor air pollution

Author Community：

[ 1 ] [Xie, Jingchao]Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing, China
[ 2 ] [Xie, Jingchao]Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
[ 3 ] [Zhao, Shanshan]Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing, China
[ 4 ] [Zhao, Shanshan]Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
[ 5 ] [Xue, Peng]Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing, China
[ 6 ] [Xue, Peng]Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
[ 7 ] [Zhang, Yanyun]Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing, China
[ 8 ] [Zhang, Yanyun]Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
[ 9 ] [Zhang, Nan]Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing, China
[ 10 ] [Zhang, Nan]Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
[ 11 ] [Liu, Jiaping]Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing, China
[ 12 ] [Liu, Jiaping]Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
[ 13 ] [Chen, Junwei]China Railway Siyuan Survey and Design Group Co., Ltd, Wuhan, China
[ 14 ] [Wang, Shaofeng]China Railway Siyuan Survey and Design Group Co., Ltd, Wuhan, China

Reprint Author's Address：

Email：

Show more details

Related Keywords：

University closure plays a critical role for COVID-19 control
2024，18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024
Measuring the characteristic parameters of VOC emission from paints
2013，Building and Environment
A Primary Study of New Indexes for Air Pollutant
2020，11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019
Is There Any Difference in Indoor Environmental Perceptions between People with and without Respiratory Allergy?
2020，11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019

Source ：

Year： 2024

Language： English

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 9

Affiliated Colleges：

Get Fulltext

Library Discovery Baidu Scholar Search Engineering Village

Type
Departments

All Years Choose Year From to