《Probabilistic analysis of air infiltration in low-rise buildings》.pdf

ARTICLE IN PRESS Building and Environment 43 (2008) 537–549 /locate/buildenv Probabilistic analysis of air infiltration in low-rise buildings Krystyna Pietrzyk, Carl-Eric Hagentoft Department of Civil and Environmental Engineering, Building Technology, Chalmers University of Technology, 412 96 Gothenburg, Sweden Received 1 July 2003; received in revised form 3 January 2005; accepted 15 January 2007 Abstract The probabilistic model (PROMO) applied to the problem of air infiltration in low-rise buildings is presented. The model allows estimation of the effect of variations of climatic conditions on air exchange in a building. Probabilistic output in the form of probability density function of air change rate forms a ground for reliability analysis of adequate ventilation. PROMO model is applied to analyse the air exchange caused by air infiltration in a house situated near Gothenburg. The model is validated on the basis of the results of measurements obtained for that house. r 2007 Elsevier Ltd. All rights reserved. Keywords: Air infiltration; Air change rate; Wind; Temperature; Probabilistic modelling; Reliability analysis; FORM 1. Introduction ventilation calculations is given by Orme M [6]. All of them are deterministic models using deterministic parameters of Uncertainty associated with the influence of climate on the structure and short-term (eight models) or long-term the performance of a building in the aspect of air exchange (seve