南方某铁路客运站候车厅分层空调设计与CFD模拟研究

Stratified air⁃conditioning design and CFD study of a southern train station building

本文以某铁路客运站厅为研究对象,对该站厅分层空调负荷组成以及气流组织进行计算,模拟计算了该站厅的温度场和速度场,并对人体模型的舒适度进行综合评价。结果显示,初步设计工况下,候车厅的温度分层效果显著,工作区的平均温度和平均速度均满足相关规范要求,且通过热舒适性指标PMV⁃PPD得出人员工作区域设计工况整体舒适性较高;射流搭接位置略高于工作区高度,可能导致能耗增加,后续研究可对送风参数进行进一步优化。

Taking a train station as the study object,this paper calculated stratified air⁃conditioning load and air distribution in large space building,simulated the air temperature distribution and speed distribution in station,and comprehensively evaluated comfort degree of human model.It was indicated that air⁃temperature⁃stratified effect was obvious under primary design conditions.The average air temperature and average speed in working space could meet the requirements of design specification.Design conditions of personnel working space had good overall comfort from the analysis result of PMV⁃PPD.As the air jet⁃flow contact position was above working space,which might increase energy consumption.Air⁃supply parameters could be further optimized in future study.