Ng, L.
, Zimmerman, S.
, Good, J.
, Tool, B.
, Emmerich, S.
and Persily, A.
(2019),
Estimating real-time infiltration for use in residential ventilation control, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.2046
(Accessed December 30, 2024)
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Estimating real-time infiltration for use in residential ventilation control
Published
Author(s)
, , Jeremy Good, Brian Tool, ,
Abstract
Minimum outdoor air ventilation rates specified in standards such as ASHRAE Standard 62.2 are generally based on envelope airtightness, building floor area, geographical location, and number of occupants. To meet ventilation requirements in practice, simple on/off controls and operating schedules are most commonly used to maintain the required ventilation rate. Ideally, minimum outdoor ventilation rates should account for unintentional leakage through the building envelope, or "infiltration." ASHRAE Standard 62.2-2016 allows for an infiltration credit, which reduces the required mechanical ventilation. However, infiltration rates vary based on the indoor-outdoor temperature difference, wind, and system operationCitation
Technical Note (NIST TN) - 2046
Report Number
2046
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
CONTAM, simplified airflow modeling, residential ventilation, real-time infiltration, energy use, exposure factor, ASHRAE Standard 62.2
Citation
Issues
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Created June 17, 2019, Updated March 1, 2021