用相对热指标确定成都地铁环控设计中的温度设计标准

Design Temperature Criteria of Environment Control System of Chengdu Metro Set by RWI

在地铁环境控制系统设计标准的各设计参数之中 ,与热环境 (热舒适性 )密切相关的温度标准对环控系统的设计和运营费用的影响最大。本文以美国供暖制冷空调工程师学会 (ASHRAE)提出的相对热指标(RWI)作为衡量人体热舒适性的标准 ,对国内外部分已建及待建地铁系统的温度标准进行比较、分析 ,通过计算 ,初步确定成都市待建地铁系统温度设计标准为站厅 2 9℃ ,站台 2 8℃ ,并在此设计标准上分析了乘客由进站至出站整个过程中RWI值和热舒适感的变化规律 。

Among the design criteria of environment c on trol system of metro, the temperature criteria, which is closely related to ther mal comforts, has major impact on the design of the system and the cost of opera tion. Relative Warmth Index ( RWI ) is used to evaluate the thermal comfort of passengers. Compared with the design criteria of some system in use or under co nstruction in China and abroad, the temperature criteria of the environment cont rol system of Chengdu metro is set initially, i e. 29℃ in the station lobby an d 28°C at the platform. Based on this criterion, the variation of RWI and the t hermal sensation of passenger were analyzed during his trip in the station. This is a good reference for China′s metro environment control system design.