Simulating air distribution and occupants' thermal comfort of three ventilation schemes for subway platform
Simulating air distribution and occupants' thermal comfort of three ventilation schemes for subway platform
复制标题
地铁站台三种通风方案空气分布及乘员热舒适度模拟
DOI：
10.1016/j.buildenv.2017.08.036
复制
发表时间：
2017-11
影响因子：
7.4
通讯作者：
Zhang WR
中科院分区：
文献类型：
--
作者：
Liu CP;Li AG;Yang CQ;Zhang WR
在地铁车站等人员密集的区域，良好的气流组织是获得舒适环境不可缺少的因素。本研究通过对某地铁站台采用三种不同送风方案(混合通风、分层送风和风幕通风)的送风效果进行评价。在考虑风速、气温、空气年龄和相对温暖指数的情况下，对模拟结果进行了详细的讨论。结果表明，风幕通风具有适宜的速度和温度分布，为室内环境的健康舒适提供了有利条件。以风幕通风方案为研究对象，考察了四种情况下被占用区域的风速和温度分布情况。结果表明，最高速度和最低温度均出现在离地面0.2m的高度。本文提出了不同送风速度下的无量纲风速。本研究适用于适合地铁站台的风幕通风设计。
Excellent air distribution is an indispensable factor to acquire comfortable environment in high density occupant areas, such as subway stations. This study assesses the air distribution by adopting three different air supply schemes (mixing ventilation, stratified air ventilation and air curtain ventilation) for a subway platform. The simulation results are discussed in detail by considering air velocity, air temperature, age of air and Relative Warmth Index (RWI). It was demonstrated that air curtain ventilation presented an appropriate velocity and temperature distribution, which provides a healthy and comfortable environment. Focusing on the air curtain ventilation scheme, four cases were investigated to indicate the air velocity and temperature distribution in the occupied region. It is indicated that the highest velocities and the lowest temperatures were both achieved at the height of 0.2 m above the floor. Dimensionless velocity with different air supply velocity was proposed in this paper. This research is applicable for air curtain ventilation design appropriate for subway platform.
登录
查看更多内容
影响因子：
6.4
作者：
F. Ampofo;G. Maidment;J. Missenden
通讯作者：
F. Ampofo;G. Maidment;J. Missenden
影响因子：
1.3
作者：
M. Khanlari;Y. Daneshbod;H. Shaterzadeh Yazdi;S. Shirian;S. Negahban;A. Aledavood;A. Oryan;B. Khademi;K. Daneshbod;A. Field
通讯作者：
M. Khanlari;Y. Daneshbod;H. Shaterzadeh Yazdi;S. Shirian;S. Negahban;A. Aledavood;A. Oryan;B. Khademi;K. Daneshbod;A. Field
DOI：
--
发表时间：
2005
期刊：
Journal of Southwest Jiaotong University
影响因子：
--
作者：
Yuan Feng
通讯作者：
Yuan Feng
影响因子：
6.7
作者：
R. Zhao;Shufeng Sun;Rongyi Ding
通讯作者：
R. Zhao;Shufeng Sun;Rongyi Ding
DOI：
--
发表时间：
2007
期刊：
--
影响因子：
--
作者：
K. Misawa;J. Nakano;S. Tanabe
通讯作者：
K. Misawa;J. Nakano;S. Tanabe