Air Infiltration Measurements on the NBS Experimental Building; LOCATION = North America;

In the early stages of the project on thermal performance of our experimental masonry building, measurements were made to determine the magnitude of air exchange between the building and the surrounding chamber during the process of cyclic temperature changes. Since wind forces were negligible during the testing period,the major driving force influencing the change of air was the thermal difference between the air inside of the building and that of the surrounding air in the chamber.