本研究集中于不同的整栋建筑稀释通风系统对不同外部空气源和通风空气空间分布的现场影响。该项目涉及全氟碳示踪气体（PFT）测试在两个未占用的，单一家庭，独立的家庭在泰勒，TX，被建造为实验室的家在德克萨斯大学-泰勒。与送风和平衡通风系统相比，排风系统的室外空气交换率均匀性最低。中央空气分配系统的定时室内空气再循环有助于改善排气系统吸入的通风空气的分配。排气系统也显示，大部分外部空气源不是直接来自外部，而是从阁楼通过天花板。相比之下，供应和平衡通风系统表明，从已知的外部空气位置吸入外部空气，并充分分配该空气，具有显著的好处。 引文:ASHRAE论文CD:2014 ASHRAE年会，华盛顿州西雅图

This study focused on the in-situ impacts of various whole-building dilution ventilation systems relating to differing sources of outside air and the spatial distribution of ventilation air. The project involved perfluorocarbon tracer gas (PFT) testing at two unoccupied, single-family, detached homes in Tyler, TX that were constructed as lab homes at the University of Texas–Tyler. Compared to the supply and balanced ventilation systems, exhaust ventilation showed the lowest uniformity of outdoor air exchange rate among living space zones. Timed indoor air recirculation by a central air distribution system helped improve the distribution of ventilation air drawn in by the exhaust system. It was also shown for the exhaust system that much of the source of outside air was not directly from outside as much of it came through the ceiling from the attic. In contrast, the supply and balanced ventilation systems showed that there is a significant benefit to drawing outside air from a known outside air location, and fully distributing that air.