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Author
Walton, G. N.
Title
Calculation of Inter-Room Air Movement for Multi-Room Building Energy Analyais.
Coporate
National Bureau of Standards, Gaithersburg, MD
Sponsor
Department of Energy, Washington, DC
Report
NBSIR 81-2404, November 1981, 37 p.
Distribution
Available from National Technical Information Service
Keywords
air flow | fluid mechanics
Abstract
A model is presented for computing the infiltration and air flow between rooms of a multi-room building in terms of basic principles of fluid mechanics. This model has been incorporated into a comrehensive loads-predicting computer program. Air flows, room temperatures, and heating loads for a typical townhouse under different conditions of environment and with various construction features are computed. These calculations show the feasibility of detailed multi-room air movement analysis. They also indicate that when the inter-room openings of a low-rise structure are large compared to the envelope opening, the infiltration and total load can be accurately, and more quickly, computed by assuming no resistance to air flow between rooms. This property will also allow simplified calculations for high-rise building with many rooms. Methods are proposed for handling more complex air flow phenomena.