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Title: Air exchange measurements in army buildings
Authors: Flanders, Stephen N.
Keywords: Air change rate
Army bases
Cold regions
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: CRREL report ; 94-8.
Description: CRREL Report
Abstract: Air exchange measurements in buildings are important for testing the effectiveness of the ventilation system and for characterizing air leakage in the building envelope when the ventilation is off. This report discusses such measurements in nine Army buildings- administrative, maintenance, barracks, hospital and laboratory buildings- using a tracer gas method that entails releasing a tracer gas in an initial well-mixed concentration and then monitoring its concentration over time. The faster the tracer gas dilutes, the greater is the air change rate. ASTM Standard E741 offers techniques for tracer gas measurements in single-zone enclosures, but most Army buildings are multiple-zone enclosures. This study, looking at whether such buildings could approximate single-zone enclosures for tracer gas measurements, found that this is difficult. In addition, a number of buildings were detected in which the mechanical ventilation system was working at a fraction of design capacity.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:CRREL Report

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