城轨车辆综合传热系数快速算法及软件开发  

A fast algorithm and its software development for comprehensive heat transfer coefficient of urban rail vehicle

作　　者：谷胜军[1] 刘蔚巍[1,2] 黄文杰 龚继如 Gu Shengjun;L iu T eiwei;Huang Wenjie;Gong Jiru(Central South University;Collaborative Innovation Center of Building Energy Conservation & Environmental Control of Hunan Province;CRRC Nanjing Puzhen Co., Ltd.)

机构地区：[1]中南大学 [2]湖南省建筑节能与环境控制关键技术协同创新中心 [3]中车南京浦镇车辆有限公司

出　　处：《制冷与空调》2016年第6期22-26,共5页Refrigeration and Air-Conditioning

基　　金：中国南车集团科研项目(2012);中南大学升华育英计划资助课题(2012)

摘　　要：车体综合传热系数是反映车体隔热性能的重要指标,城轨车辆车体存在的复杂热桥结构使得目前尚无理论公式可对其综合传热系数进行直接计算。本文建立车体热桥结构物理模型,对车体稳态传热进行模拟;基于模拟结果,对整车车体传热特征和车体热桥单元导热性能进行分析,最终建立城轨车辆综合传热系数快速算法,并开发相应的计算软件。该快速算法计算简便、结果合理可靠,对于城轨车辆空调系统设计与车体隔热性能优化有着重要的指导作用。Comprehensive heat transfer coefficient is the main index to reflect the heatinsulation of vehicle body. No theoretical formula can be used to directly calculate its comprehensiveheat transfer coefficient due to its complicated thermal bridge construction invehicle body of urban rail. One physical model of thermal bridge construction of vehiclebody is set u p , to perform the simulation on steady-state heat transfer. Based on the simulationresults, the heat transfer characteristics of the whole vehicle body and the heat-conductingproperties of vehicle body^s thermal bridge units are analyzed. U ltim ately, thefast algorithm for comprehensive heat transfer coefficient of urban rail vehicle is establishedand the corresponding calculation software is developed. The fast algorithm is simple in com putation, high in reliability and reasonability, and plays an important role inguiding the design of air-conditioning system of urban rail vehicle and the performance optimization of vehicle body.

关 键 词：城轨车辆 综合传热系数 热桥 车体隔热 

分 类 号：U270.1[机械工程—车辆工程]