基于Modelica和CFD的高大空间建筑室内热舒适度研究  

Simulation on Indoor Thermal Comfort of High and Large Space Buildings Based on Modelica and CFD

作　　者：陈菡 吴燕 王义凡 张慎[1] 雷雪莲 CHEN Han;WU Yan;WANG Yifan;ZHANG Shen;LEI Xuelian(Central-south Architectural Design Institute Co.,Ltd.,Wuhan 430071,China)

机构地区：[1]中南建筑设计院股份有限公司,武汉430071

出　　处：《建筑节能(中英文)》2025年第2期76-84,110,共10页Building Energy Efficiency

摘　　要：以武汉某办公楼大厅为例,建立了建筑能耗模拟(BES)模型、Modelica暖通空调模型及快速流体动力学(FFD)模型三者之间的数据耦合传递方法,对办公楼建筑、空调及其控制系统、室内热环境进行了模拟分析。基于BES-Modelica模型实现了不同温度控制方案的快速比选,基于BES-Modelica-FFD模型分析了高大空间建筑垂直方向的温度不均的现象。在BES-Modelica-FFD联合仿真的基础上,进一步提出了多测点信息的分区控制方法,通过二次开发增加FFD测点(温度、风速传感器)来约束高大空间建筑不同朝向区域的热舒适度,可以实时复位变风量终端的送风量设定值。将该仿真模型用于分区控温与非分区控温方法的对比,结果表明,相较于非分区控温方法,分区控温方法下的室内温度分布更为均匀,有利于降低建筑能耗。由于多传感器信息融合,所提出的联合仿真方法能够更好地保证室内热舒适性,可以为暖通空调系统的优化设计提供指导方向。This study takes the lobby of an office building in Wuhan as an example to establish a data coupling transfer method between the Building Energy Simulation(BES)model,the Modelica HVAC model and the Fast Fluid Dynamics(FFD)model.The heat gains of the external maintenance structure of the office building,the air conditioning and its control system,and the indoor thermal environment are simulated and analyzed.Based on the BES-Modelica model,the rapid comparison and selection of different temperature control schemes is realized,and the phenomenon of temperature unevenness in the vertical direction of tall space buildings is analyzed based on the BES-Modelica-FFD model.Based on the BES-Modelica-FFD joint simulation,a zoning control method with multi-measurement point information is further proposed,and FFD measurement points(temperature,wind speed sensors)are added through secondary development to constrain the thermal comfort in different orientation areas of tall space buildings,which can reset the air supply volume setting value of the variable air volume terminal in real time.The simulation model is compared with zoned temperature control and non-zoned temperature control methods.The results show that compared with the non-zoned temperature control method,the indoor temperature distribution in each direction under the zoned temperature control method is more uniform,which is beneficial to reducing building energy consumption.Due to the fusion of multi-sensor information,the proposed joint simulation method can better ensure indoor thermal comfort and provide guidance for the optimal design of HVAC systems.

关 键 词：MODELICA 快速流体动力学(FFD) 建筑能耗模拟(BES) DYMOLA ENERGYPLUS 协同仿真 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]