对中央送风系统和分布式送风系统进行了模拟，以确定它们在控制室内空气污染物暴露方面的相对性能。采用了两种不同的控制策略:（1）恒定排气流量（连续通风）和（2）调节排气流量以保持排气流中的二氧化碳浓度恒定（按需控制通风）。与连续通风系统相比，按需控制通风系统没有明显的优势。他们减少了对某些污染物的暴露，增加了对其他污染物的暴露。在某些情况下，需求控制通风系统的相对性能在很大程度上取决于使用集中供气还是分布式供气通风。 关键词:计算、性能、通风、二氧化碳、占用率、传感器、性能、暴露、空气污染、室内、连续运行、机械通风、需求控制通风。1991年，第97卷，第2部分

A central-supply ventilation system and a distributed-supply ventilation system were simulated to determine their relative performance in controlling occupant exposure to indoor air pollutants. Two different control strategies were used - (1) constant exhaust flow rates (continuous ventilation) and (2) modulations of the exhaust flow rates to keep the carbon dioxide concentration in the exhaust air stream constant (demand-controlled ventilation). The demand-controlled ventilation systems showed no clear advantage over the continuous ventilation systems. They reduced the exposures to some pollutants and increased the exposures to others. In some cases, the relative performance of the demand-controlled ventilation systems depended strongly on whether central-supply or distributed-supply ventilation was used.KEYWORDS: calculating, performance, ventilation, carbon dioxide, occupancy, sensors, performance, exposure, air pollution, indoor, continuous operation, mechanical ventilation, demand controlled ventilation