The window condensation prediction can be included among the most critical issues affecting the design and the maintenance of a building since the 1D temperature approximation turns out to be inadequate. Thus, the numerical approach is almost mandatory wishing to model temperature multidimensional profiles which are essentially due to the coupling of glass and frame. In this connection, the present study aims to introduce an approximate yet accurate analytical model in order to predict longitudinal temperature profiles along the glass, which are of interest for detecting the threshold for condensation. The one-dimensional model is built-up on the parameters featuring the thermal characteristics of the glazing profiles as established by the international standard ISO 10077-2:2012. Moreover, the meaning of the linear thermal transmittance is fully elucidated. Preliminary results show that quite good agreement can be attained between the temperature profiles proposed in the present study and the one arising from the corresponding CFD study.
AN APPROXIMATE SOLUTION FOR THE INNER-GLASS LONGITUDINAL TEMPERATURE PROFILE IN DOUBLE GLAZED WINDOWS
CUCCURULLO, Gennaro;FIORE, PIERFRANCESCO
2014-01-01
Abstract
The window condensation prediction can be included among the most critical issues affecting the design and the maintenance of a building since the 1D temperature approximation turns out to be inadequate. Thus, the numerical approach is almost mandatory wishing to model temperature multidimensional profiles which are essentially due to the coupling of glass and frame. In this connection, the present study aims to introduce an approximate yet accurate analytical model in order to predict longitudinal temperature profiles along the glass, which are of interest for detecting the threshold for condensation. The one-dimensional model is built-up on the parameters featuring the thermal characteristics of the glazing profiles as established by the international standard ISO 10077-2:2012. Moreover, the meaning of the linear thermal transmittance is fully elucidated. Preliminary results show that quite good agreement can be attained between the temperature profiles proposed in the present study and the one arising from the corresponding CFD study.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
