摘要
使用STAR-CCM+建立数值模型,模拟计算城市地下综合管廊通风降温,分别以排风口和管廊内几个点为通风停止温度控制点。分析对比各温度控制点下,管廊温度场分布和通风效果。分析表明:单位时间通风量低时,管廊空气温度分布均匀性虽较好,但是排热效率很差;选用管廊内一点作为温度控制点时,空气温度分布均匀性和排热效率均优于以排风口温度为控制点。
Using the STAR-CCM+to establish a numerical model to simulate and calculate the cooling of the urban utility tunnel.The exhaust outlet and the a few points in utility tunnel are used as the ventilation stop temperature control points.Analyzing and comparing the temperature field distribution and ventilation effects of them.Analyzing the simulation results,the air temperature distribution uniformity of utility tunnel is good when the ventilation quantity of per unit time is low,but the heat removal efficiency is very poor;when choose one point in utility tunnel as the temperature control point,the air temperature distribution uniformity and the heat removal efficiency are better than the exhaust outlet temperature is the control point.
作者
李粤川
邓志辉
Li Yuechuan;Deng Zhihui(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031)
出处
《制冷与空调（四川）》
2020年第5期549-553,共5页
Refrigeration and Air Conditioning
关键词
数值模拟
综合管廊
通风散热
运行优化
numerical simulation
utility tunnel
ventilation and heat dissipation
operation optimization
