基于实测与问卷调研的高温天地铁车站空气运行温度优化
Optimization of air operating temperature in subway stations in high temperature days based on actual measurement and questionnaire
摘要：
提出了高温天基于相对热指标（RWI）确定地铁车站空气运行温度的方法。在上海市某地铁车站现场测试热环境参数，同时同步在车站站厅及站台发放热舒适调研问卷，选取乘客热感觉为舒适的问卷，根据室外与站厅、站厅与站台RWI差值的最小值来确定站厅及站台的推荐空气运行温度。结果表明：在车站相对湿度为40%～70%的条件下，当室外温度为35.0～36.0 ℃时，站厅及站台推荐空气运行温度分别可达到32.6、31.1 ℃；当室外温度为36.0～37.0 ℃时，站厅及站台推荐空气运行温度分别可达到33.3、31.9 ℃。本文推荐的车站空气运行温度满足乘客从室外进入站厅、站厅进入站台“短暂舒适”的需求，同时较高车站空气运行温度对空调系统的节能意义重大。
Abstract：
This paper presents a method for calculating the air operating temperature of subway stations based on the relative warmth index (RWI) in high temperature days. While testing the thermal environment parameters in a subway station in Shanghai, the thermal comfort survey questionnaires are simultaneously distributed in the station hall and platform. The questionnaires with comfortable thermal sensation are selected to determine the recommended air operating temperatures of the station hall and platform according to the minimum difference of RWI between the outdoor and the station hall, and between the station hall and the platform. The results show that when the relative humidity of the station is 40% to 70%, the recommended air operating temperature of the station hall and platform can reach 32.6 ℃ and 31.1 ℃ respectively when the outdoor temperature is 35.0 ℃ to 36.0 ℃, and 33.3 ℃ and 31.9 ℃ respectively when the outdoor temperature is 36.0 ℃ to 37.0 ℃. This article recommends that the air operating temperature of the station meets the needs of passengers entering the station hall from the outside and entering the station platform from the station hall for “short-term comfort”. At the same time, higher station air operating temperature is of great significance to the energy saving of the air conditioning system.
Keywords:relative warmth index (RWI); station air operating temperature; field measurement; questionnaire; high temperature day; subway station