摘要
分析北方地铁屏蔽门系统节能效果,确定可有效利用活塞风的节能改造方案。采用EnergyPlus能耗模拟软件综合评价北方城市不同地铁环控方案,并利用Airpak模拟站台温度场和速度场预测改造后的效果。比较发现屏蔽门系统与安全门系统相比仅节能2%,在北方城市节能效果不明显。分析发现屏蔽门系统通风尤其是站台下排风能耗过高,过渡季节和冬季的活塞风是解决这一问题的关键。屏蔽门增加可调节的风口,可在过渡季节和冬季有效利用活塞风,引入站台可补充新风量,节省机械通风耗能,夏季关闭风口仍保留其节能优势,全年能耗可再减少30%,节能效果明显。
To analyze the influence of the platform screen doors （PSD） on energy consumption of subway environmental control systems in northern cities and to make good use of piston wind, EnergyPlus, an energy analysis and thermal load simulation program, is used to evaluate such systems in northern cities. A computational fluid dynamics （CFD） simulation is made to model the velocity and temperature field of a subway station and to predict the effect on PSD reconstruction using Airpak. Compared to a system with automatic platform gates, a PSD system has 2 % lower energy consumption. Thus, PSDs are inefficient for saving energy in northern cities. Because electricity consumption by ventilation equipment increases notably when PSDs are used, particularly by under platform exhaust fans, little difference exists in the overall energy consumption with or without PSD. More thoroughly using piston wind in transition seasons and the winter is the key to solving the high energy consumption problem. The energy analysis and CFD simulation results show that the adjustable vents in PSD can use the piston process to introduce outside air, thereby reducing ventilation energy consumption notably. Because the vents can be closed, PSDs also can save energy in the summer. Using these recommendations can reduced annual energy consumption 30%.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第2期218-222,共5页
Journal of Chongqing University
基金
天津市科学技术委员会社会发展资助项目(033112911)
关键词
屏蔽门
安全门
活塞风
地铁通风
节能
计算流体力学
能耗分析
platform screen doors
automatic platform gates
piston wind
subway ventilation
energy saving
computational fluid dynamics
energy consumption analysis
