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In this article the air infiltration through the envelope of a naturally ventilated building, located in Bra?ov (Romania) is studied. The paper presents the study of the factors which influence the air infiltration ? wind effect and stack effect ? and the modeling of air change rate (ACH) inside the building, by Multiple Linear Regression (MLR) modeling. It has been found that ?T can be a good predictor of ACH because of its high physically correlation with this. Another conclusion of the study is that although wi...

The paper presents the experimental analysis of a small scale building model (1:30), tested into a wind tunnel with atmospheric boundary layer. The objective of the study is to determine the wind influence on the ventilation of a double skin fa?ade channel (DSF). It was achieved by conceiving and implementation of an experimental program using a wind tunnel. During the experimental work the wind effect over the ventilation of the vertical channels of double skin fa?ades is evaluated for multiple velocities. For ob...