北方旅客站房自然通风降温潜力分析

Analysis of the Cooling Potential of a Passenger Lounge under Natural Ventilation in Northern China

研究目的：为最大限度的利用当地气候资源，降低通风空调能耗，在对北方地区旅客站房自然通风降温潜力区域的划分及对北方铁路客站自然通风条件下的热舒适评价标准的基础上，利用EnergyPlus软件对旅客站房自然通风降温潜力进行分析。研究结论：通过计算分析，可以把北方地区旅客站房自然通风降温潜力分为四个区域，即：（1）自然通风降温潜力很高区——Ⅰ区，自然通风利用小时数〉90％；（2）自然通风降温潜力高区——Ⅱ区，自然通风利用小时数〉85％；（3）自然通风降温潜力中区——Ⅲ区，自然通风利用小时数在60％～85％之间；（4）自然通风降温潜力低区——Ⅳ区，自然通风利用小时数〈68％；（5）该研究成果可以优化旅客站房自然通风设计，为实际工程设计提供理论依据。

Research purposes： In order to use the local climate resources maximally and reduce energy consumption of ventilation and air conditioning, on the base of the division of the cooling potential regions of the passenger lounge using natural ventilation in Northern China and evaluation criterion of thermal comfort in northern railway station under natural ventilation, Energy Plus soft is used to analyze the cooling potential of natural ventilation in the passenger lounge. Research conclusions： Results show that the passenger lounge in Northern China can be divided into four cooling potential regions under natural ventilation： （1）The cooling potential under natural ventilation is very high in Region I, and the utilization time of natural ventilation is more than 90%. （2） The cooling potential is also high in Region II, while the utilization time of natural ventilation is more than 85%. （3） The utilization time of natural ventilation is between 60% and 85% in the medium cooling potential Region III. （4） The utilization time of natural ventilation is less than 68% in the low cooling potential Region IV. （5） The results can optimize in the design of passenger station building natural ventilation and provide theoretical basis for practical engineering design.