With the increasing size of the waiting hall, the large-area use of transparent envelope materials makes the interior surface temperature of the envelope too high, which puts forward higher requirements for the control of environment and thermal comfort indoors. In this paper, the characteristics of indoor temperature distribution, relative humidity distribution and thermal comfort under the all air system (AAs) and the radiant floor cooling and wall cooling combined with air supply system (RC/ASs) were investigated in the large spaces. The computational fluid dynamics (CFD) method was used, and the performance of the CFD model was validated by comparing the measured results with CFD simulation results in the AAs. The numerical results clearly showed that the temperature and relative humidity indoors could satisfy the design requirement both in the AAs and RC/ASs. The indoor air distribution in most areas under the RC/ASs was more uniform based on the indoor heat and humidity requirements under the cooling load of measured day. In the AAs, the total cooling capacity of air conditioning unit was the highest when indoor thermal comfort was the best, that meant that to achieve the best working condition, the air-conditioning system need high energy consumption. Meanwhile, the RC/ASs addressed the problem that the temperature around the seated passengers in the waiting area was relatively high in the AAs. This paper will provide reference for the air conditioning system design in the similar large spaces in the future.

随着候车厅规模的增大，透明信封材料的大面积使用使得信封的内表面温度过高，对室内环境的控制和热舒适性提出了更高的要求。本文研究了大空间环境下室内温度分布，相对湿度分布和全热系统的舒适性，以及辐射地板冷却和墙体冷却与空气供应系统（RC / ASs）的关系。使用计算流体动力学（CFD）方法，通过将测量结果与AA中的CFD仿真结果进行比较，验证了CFD模型的性能。数值结果清楚地表明，室内温度和相对湿度在AA和RC / AS中都可以满足设计要求。根据在测量日的制冷负荷下室内的热量和湿度要求，RC / ASs下大多数区域的室内空气分布更加均匀。在机管局中，当室内热舒适度最佳时，空调机组的总制冷量最高，这意味着要达到最佳工作状态，空调系统需要消耗大量能量。同时，RC / AS解决了AA中等候区中就座乘客周围温度较高的问题。本文将为以后类似大空间的空调系统设计提供参考。根据在测量日的制冷负荷下室内的热量和湿度要求，RC / ASs下大多数区域的室内空气分布更加均匀。在机管局中，当室内热舒适度最佳时，空调机组的总制冷量最高，这意味着要达到最佳工作状态，空调系统需要消耗大量能量。同时，RC / AS解决了AA中等候区中就座乘客周围温度较高的问题。本文将为以后类似大空间的空调系统设计提供参考。根据在测量日的制冷负荷下室内的热量和湿度要求，RC / ASs下大多数区域的室内空气分布更加均匀。在机管局中，当室内热舒适度最佳时，空调机组的总制冷量最高，这意味着要达到最佳工作状态，空调系统需要消耗大量能量。同时，RC / AS解决了AA中等候区中就座乘客周围温度较高的问题。本文将为以后类似大空间的空调系统设计提供参考。当室内热舒适度最佳时，空调机组的总制冷量最高，这意味着要达到最佳工作状态，空调系统需要消耗大量能量。同时，RC / AS解决了AA中等候区中就座乘客周围温度较高的问题。本文将为以后类似大空间的空调系统设计提供参考。当室内热舒适度最佳时，空调机组的总制冷量最高，这意味着要达到最佳工作状态，空调系统需要消耗大量能量。同时，RC / AS解决了AA中等候区中就座乘客周围温度较高的问题。本文将为以后类似大空间的空调系统设计提供参考。