Using measured data for solar radiation, for atmospheric infrared radiation and for outside air temperature, by means of a physical model, the UNI TS 11300-1/2008 procedure was verified, for the calculation of loss of infrared radiation between the building shell and the external environment. In particular, with reference to winter and summer periods, and to both opaque and glazed surfaces, the performance of the model which depends on infrared thermal exchanges both from external heat transfer coefficient and from extra heat flow towards the sky is investigated.
Utilizzando dati misurati di irraggiamento solare, di irraggiamento infrarosso atmosferico e di temperatura dell’aria esterna, mediante un modello fisico è sottoposta a verifica la procedura della UNI TS 11300-1/2008, per il calcolo delle perdite per irraggiamento infrarosso tra l’involucro edilizio e l’ambiente esterno. In particolare, con riferimento al periodo invernale ed estivo, e a superfici opache e vetrate, è indagata la bontà del modello che fa dipendere gli scambi termici nell’infrarosso in parte dall’adduttanza superficiale esterna e in parte dall’extra flusso verso il cielo.
UNA VERIFICA DEL METODO DI CALCOLO DELLE PERDITE TERMICHE NELL’INVOLUCRO EDILIZIO PRODOTTE DALL’EXTRA FLUSSO PER IRRAGGIAMENTO INFRAROSSO VERSO IL CIELO
DE SIMONE, Marilena;OLIVETI, Giuseppe Antonio;ARCURI, Natale;BRUNO R.
2009-01-01
Abstract
Using measured data for solar radiation, for atmospheric infrared radiation and for outside air temperature, by means of a physical model, the UNI TS 11300-1/2008 procedure was verified, for the calculation of loss of infrared radiation between the building shell and the external environment. In particular, with reference to winter and summer periods, and to both opaque and glazed surfaces, the performance of the model which depends on infrared thermal exchanges both from external heat transfer coefficient and from extra heat flow towards the sky is investigated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.