With the continuous promotion of urbanization, numerous large-scale public buildings appear in cities. With the characteristics of large floor area and high personnel density, creating a thermally comfortable environment is a significant task for large-scale buildings. However, an uneven thermal environment is usually detected in large-scale spaces, indicating that some areas are overcooled while some lack cooling. Meanwhile, this nonuniform environment causes discomfort to occupants. This study proposes an integrated approach to investigating the thermal status of a large-space office based on the PMV-PPD thermal comfort model. This combined method not only provides an insight into the spatial distributions of indoor environmental parameters, such as air temperature, air velocity, and mean radiant temperature, but calculates the spatial distribution of PMV index. The spatial profiles of thermal comfort index reveal that PMV values are lower than −0.5 in the middle area and higher than 0.5 in the side areas. Such spatial distributions of PMV values mean that occupants feel either cold or warm within the target space. Thus, the integrated method offers a comprehensive evaluation approach for the indoor environment of a large-space office. Furthermore, for ways to avoid a nonuniform thermal environment, possible causes of the uneven thermal environment and feasible suggestions are discussed, providing useful guidance for design and operation of HVAC in large-space buildings.

随着城市化进程的不断推进，城市中出现了大量的大型公共建筑。具有大的占地面积和高的人员密度的特征，为大型建筑物创造热舒适的环境是一项重要的任务。但是，通常在大型空间中会检测到不均匀的热环境，这表明某些区域过冷，而有些区域则缺乏冷却。同时，这种不均匀的环境使乘员不舒服。这项研究提出了一种基于PMV-PPD热舒适模型的综合方法，用于研究大型办公室的热状况。这种组合方法不仅可以洞悉室内环境参数（例如气温，风速和平均辐射温度）的空间分布，但计算PMV指数的空间分布。热舒适指数的空间分布表明，PMV值在中间区域低于-0.5，在侧面区域高于0.5。PMV值的这种空间分布意味着乘员在目标空间内感到冷或热。因此，该综合方法为大型办公室的室内环境提供了一种综合的评估方法。此外，为避免热环境不均匀的方法，讨论了热环境不均匀的可能原因和可行的建议，为大空间建筑中的HVAC设计和运行提供了有用的指导。PMV值的这种空间分布意味着乘员在目标空间内感到冷或热。因此，该综合方法为大型办公室的室内环境提供了一种综合的评估方法。此外，为避免热环境不均匀的方法，讨论了热环境不均匀的可能原因和可行的建议，为大空间建筑中的HVAC设计和运行提供了有用的指导。PMV值的这种空间分布意味着乘员在目标空间内感到冷或热。因此，该综合方法为大型办公室的室内环境提供了一种综合的评估方法。此外，为避免热环境不均匀的方法，讨论了热环境不均匀的可能原因和可行的建议，为大空间建筑中的HVAC设计和运行提供了有用的指导。