介绍了在带有机械排气的中庭空间中进行的物理模型研究的初步结果，以及中庭空间条件的实验数据和计算流体力学模型预测之间的比较。还研究了火灾大小和开口位置对中庭条件的影响。结果表明，对于中庭研究，用于排气系统设计的NFPA 92B中的相关性是有效的，并且当排气系统在接近或略低于其设计容量的情况下运行时，它们可以有效地从热层中提取气体，而无需从下层吸入空气。当系统在要求的流速以上运行时，来自下层的新鲜空气进入系统，但热层保持在可接受的高度。 单位:双关键词:1997年，中庭，烟雾通风，性能，计算，测试，机械通风，设计引用:研讨会，ASHRAE交易，第103卷，第2部分，波士顿1997

Presents the initial results of physical model studies performed in an atrium space with mechanical exhaust as well as a comparison between experimental data and computational fluid dynamics model predictions of the conditions in the atrium space. Also investigates the effect of fire size and opening location on the conditions in the atrium. States the results indicate that for the atrium studies, the correlations in NFPA 92B used for the design of exhaust systems are valid, and that when the exhaust systems operate near or just below their design capacity they are effective in extracting gases from the hot layer without drawing in air from the lower layer. When the systems operate well above the required flow rates, fresh air from the lower layer enters the system but the hot layer remains at an acceptable height.Units: DualKEYWORDS: year 1997, Atria, smoke ventilation, performance, calculating, testing, mechanical ventilation, designing