Over the past years, in order to improve the thermal performance of building elements, rules of construction have been issued and new limits of respect have been enforced. An example is the value of the thermal trasmittance U, that producers of building elements have to declare and that must stay below prescribed thresholds. European standards propose two methods to calculate U. One of this method is simple, but its use is not always allowed, the other requires timeconsuming numerical simulations. In this paper we present the result of a numerical study aimed to propose simple correlations that avoid the need of numerical simulations to compute the thermal trasmittance of precast concrete panels.
Metodo di calcolo delle trasmittanze lineiche in pannelli prefabbricati in calcestruzzo alleggeriti
LUSCIETTI, Davide;LEZZI, Adriano Maria
2012-01-01
Abstract
Over the past years, in order to improve the thermal performance of building elements, rules of construction have been issued and new limits of respect have been enforced. An example is the value of the thermal trasmittance U, that producers of building elements have to declare and that must stay below prescribed thresholds. European standards propose two methods to calculate U. One of this method is simple, but its use is not always allowed, the other requires timeconsuming numerical simulations. In this paper we present the result of a numerical study aimed to propose simple correlations that avoid the need of numerical simulations to compute the thermal trasmittance of precast concrete panels.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
