给出并比较了一个3:1比例的模型房间的测量污染物和散热效率数据，该模型房间代表一个具有二维气流模式的吸烟室、休息室或酒吧。在实验中，从一个源同时引入热量和示踪气体，以模拟原型吸烟室。研究了高侧墙和置换通风方案，后者采用了两种不同类型的天花板扩散器:低速槽和低速格栅。结果表明，在各种运行条件下，每种通风方案的热能去除效率都与污染物去除效率密切相关。 平均热去除效率和污染物去除效率在±20%以内。局部污染物去除效率范围从高壁槽扩散器的80%低到带置换通风的低速天花板扩散器的200%以上。送风和室内空气之间的温差在0.2°C（0.36°F）和41.0°C（73.8°F）之间，在入口条件下，通风气流速率在每小时9.2到36.8次换气之间。对于送风和排风之间的小温差，所有三种通风方案都表明，送风扩散器入口附近的污染物去除效率提高，排气出口附近的值降低。 对于高侧壁槽扩散器，其效率在入口附近高达140%，在排气附近高达100%，但对于第二置换方案（低速格栅），其效率在入口附近高达200%，在排气附近高达110%。本文还显示了一个50人容量的吸烟休息室的冷负荷可能会显著降低，该休息室利用空对空热/能量交换器从排气中回收热量/能量。单位:双引证:研讨会，ASHRAE交易，1998年，第104卷，第2部分，多伦多

Measured contaminant and heat removal effectiveness data are presented and compared for a 3:1 scale model room, which represents a smoking room, lounge, or bar with a two-dimensional airflow pattern. In the experiments, heat and tracer gases were introduced simultaneously from a source to simulate a prototype smoking room. High-side-wall and displacement ventilation schemes were investigated, and the latter employed two different types of ceiling diffuser, low-velocity slot and low-velocity grille.Results show that thermal energy removal effectiveness closely follows contaminant removal effectiveness for each of the ventilation schemes throughout a wide range of operating conditions. The average mean thermal and contaminant removal effectiveness agreed within ±20%. Local contaminant removal effectiveness ranged from a low of 80% for a high-wall slot diffuser to more than 200% for a low-velocity ceiling diffuser with displacement ventilation. Temperature differences between the supply and the indoor air were between 0.2°C (0.36°F) and 41.0°C (73.8 °F) and ventilation airflow rates ranged from 9.2 to 36.8 air changes per hour at inlet conditions. For small temperature differences between supply and exhaust air, all three ventilation schemes showed increased contaminant removal effectiveness near the supply diffuser inlet with decreasing values toward the exhaust outlet. For the high-side-wall slot diffuser, effectiveness was up to 140% near the inlet and 100% near the exhaust, but for the second displacement scheme (low-velocity grille) the effectiveness was more than 200% near the inlet and 110% near the exhaust.This paper also shows a potential significant reduction in cooling load for a 50-person-capacity smoking lounge that utilizes an air-to-air heat/energy exchanger to recover heat/energy from the exhaust air.Units: Dual