【摘要】 本文测试了广州地铁三号线车厢内部的热环境,对其进行了分析,并利用不均匀系数与热环境评价指标对地铁热环境舒适度进行了评价。结果表明,在目前的送风方式下,载客量对温度分布影响明显,载人工况下,客室高度方向温度分层较为严重,且容易形成回风短路;现有空调设计不能满足满员工况需求,在客室站立密度为2人/m~2时,热环境不满意率最低。更多还原

【Abstract】 The thermal environment of metro line No.3 in Guangzhou was tested and analyzed, and the human thermal comfort was evaluated based on nonuniformity coefficient and PMV-PPD(Predicted Mean Vote-Predicted Percentage Dissatisfied). The result shows that, the metro capacity has a significant influence on the temperature distribution under the current air-supply mode conditions. In manned condition, there is an obvious thermal stratification along the height direction, and the air-return short circuit is easy to form. The current air-condition design cannot satisfy the requirements of full working conditions, and the dissatisfaction rate of thermal environment is lowest when density of passenger in vehicle is 2 persons per square meter.更多还原