- Author
- Persily, A. K.
- Title
- Air Flow Calibration of Building Pressurization Devices.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
- NBSIR 84-2849, April 1984,
- Distribution
- Available from National Technical Information Service
- Keywords
- buildings; air flow; air circulation; doors; calibration; pressurizing
- Abstract
- Whole building pressurization devices, or blower doors, have been used to quantify building air-tightness and to determine compliance with air tightness standards. Using pressurization testing in air-tightness standards requires knowledge of the accuracy of the air flow rate measurement techniques employed by blower doors. The quantitative accuracy of existing air flow calibrations are not known and have been questioned. The blower doors considered in this report employ calibration formula relating the air flow rate through the door to the fan speed and the pressure difference across the door. Such fan speed calibrations must be done accurately over a wide range of fan speed/pressure difference combinations and in a physical setting that closely approximates the manner in which the blower doors are used in the field.