2022北京冬季奥运会雪车雪橇中心赛道热环境影响分析
Analysis of thermal environment impact on National Sliding Center track of 2022 Beijing Winter Olympics
摘要：
通过对延庆国家雪车雪橇中心场地的气象数据统计和赛道传热机理分析，利用热平衡原理建立了国家雪车雪橇赛道传热模型，分析了赛道各种传热方式传热量的比例。根据国家雪车雪橇中心的选址情况，分别对赛道的遮蔽工况和裸露工况进行了热平衡状况模拟测算，发现将赛道遮蔽可以使赛道与外界的传热量降低37.7%。通过定量的热影响分析，可以为赛道选取适宜的设计策略来减少气候不利因素所带来的能耗损失，实现节能减碳的目的。
Abstract：
Based on the weather data statistics of the Yanqing National Sliding Center (NSC) and the heat transfer mechanism analysis of the track, establishes the heat transfer model of the NSC track using the principle of heat balance, which is used to analyse the proportion of various heat transfer methods on the track. According to the site selection of the NSC, simulates and calculates the thermal balance of the track under the sheltered and exposed conditions, and finds that shielding the track can effectively reduce the heat transfer between the track and the outside by 37.7%. Through quantitative thermal impact analysis, suitable design strategies can be selected for the track to reduce the energy loss caused by unfavorable weather factors and achieve the purpose of energy saving and carbon reduction.
Keywords:Winter Olympics, climate, National Sliding Center, heat balance, radiation