Air leakage in Catalan dwellings: Developing an airtightness model and leakage airflow predictions
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10.1016/j.buildenv.2009.12.009
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/7179
Tipus de documentArticle
Data publicació2009-12
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
In this study we estimate the air leakage distribution of single-family dwellings in Catalonia and use
a statistical analysis of an airtightness database for single-family dwellings in France to identify the
building characteristics that have the greatest influence on airtightness. The most significant variables
are found to be the structure type, the floor area, the age of the building, the number of stories and the
insulation type. A multiple linear regression technique is then applied to establish a predictive model for
deriving an estimated value of airtightness from these characteristics. To estimate the infiltration airflow,
a stochastic simulation of the building characteristics was performed per census tract using real data on
the distributions of building variables taken from the census information. The model is then applied to
determine the power law coefficient and the airtightness distribution. The predicted flow coefficients are
combined with the AIM-2 model and given meteorological conditions to determine the infiltration
airflow. Two sets of meteorological conditions are considered: average conditions and extreme conditions
for each season.
CitacióMontoya, M.I. [et al.]. Air leakage in Catalan dwellings: Developing an airtightness model and leakage airflow predictions. "Building and environment", Desembre 2009, vol. 45, núm. 6, p. 1458-1469.
ISSN0360-1323
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leakage.pdf | 1,066Mb | Visualitza/Obre |