高速列车运行时车体传热系数K值研究  

Study on the Carbody Heat Transfer Coefficient K Value for Operation of High-speed Train

作　　者：吴靖阳 匡骁 王彦鲁 刘忠庆 孙德世 WU Jingyang;KUANG Xiao;WANG Yanlu;LIU Zhongqing;SUN Deshi(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China;Shenzhen Xiaoyang Engineering Consultancy Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266031 [2]深圳市骁阳工程咨询有限公司,广东深圳518000

出　　处：《铁道车辆》2024年第1期114-119,共6页Rolling Stock

摘　　要：车体传热系数K值是轨道车辆热工性能的重要指标,是高速列车空调系统能耗的重要影响参数。文章主要采用数值计算的方式,研究了高速列车车体传热系数K值。通过计算高速列车中间车的静止车体传热系数K值及运行条件下的车体传热系数K值,分析了不同运行速度时高速列车中间车车体传热系数K值的变化规律。计算结果表明:列车运行速度越高,车体传热系数K值越大,但增加幅度越来越小。此外,文章还分析了车体传热系数K值的变化对整车空调系统能耗的影响:高速列车以时速380 km运行时,相对于静止状态,由车体传热系数K值增大引起的整车空调系统能耗增加值不大。在设计高速列车时,相对于车体传热系数K值,更应注重列车高速运行时车体气密性。虽然车体传热系数K值增大引起的整车空调系统能耗增加值不大,但通过车体传入车内的热量仍较大,高速列车车体传热系数K值仍需控制在合理的范围内。The carbody heat transfer coefficient K value is an important index of the thermal performance of rail vehicles and an important influencing parameter of energy consumption of the air conditioning system of high-speed train.This article mainly studies the carbody heat transfer coefficient K value of high-speed train by means of numerical calculation.By calculating the K value of the static carbody of intermediate cars of a highspeed train and the K value in running conditions,the article analyzes the change rule of K value of intermediate cars of a high-speed train at different running speeds.The calculation result shows the following:the higher the running speed of the train is,the larger the K value is,but its increase amplitude is smaller and smaller.In addition,the article analyzes the impact of the change of K value on the energy consumption of the air conditioning system of the whole train:comparing the high-speed train running at 380 km/h and the same train in static status,it turns out that the increase of energy consumption of the air conditioning system of the whole train caused by the increase of K value is not important.When designing a high-speed train,the attention shall be paid more to the air tightness of carbody during high-speed operation of the train than to the K value.Although the increase of energy consumption of the air conditioning system of the whole train caused by the increase of K value is not important,the quantity of heat transferred into the train through the carbody is still large,so the K value of high-speed train shall be controlled within a reasonable range.

关 键 词：高速列车 车体传热系数K值 计算 能耗 空调 

分 类 号：U270.383[机械工程—车辆工程]