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A platform for research: civil engineering, architecture and urbanism
A numerical study of effect of natural convection on thermal properties of horizontal oriented porous insulation
This paper deals with numerical computations carried out to predict the effect of natural convection on the thermal performance of porous material. The effect of natural convection in a horizontal porous layer on heat transfer will be discussed. The study of this configuration is essential to understanding the performance of insulation of the type commonly used in roofs and attics. The influence of natural convection on the global heat transfer rate for mineral wool, loose-fill and insulation made of small and large polystyrene balls was studied. The results are presented in terms of dimensionless Nusselt and Rayleigh numbers as a function of temperature difference across the insulation. The temperature distribution across the insulation are also plotted.
A numerical study of effect of natural convection on thermal properties of horizontal oriented porous insulation
This paper deals with numerical computations carried out to predict the effect of natural convection on the thermal performance of porous material. The effect of natural convection in a horizontal porous layer on heat transfer will be discussed. The study of this configuration is essential to understanding the performance of insulation of the type commonly used in roofs and attics. The influence of natural convection on the global heat transfer rate for mineral wool, loose-fill and insulation made of small and large polystyrene balls was studied. The results are presented in terms of dimensionless Nusselt and Rayleigh numbers as a function of temperature difference across the insulation. The temperature distribution across the insulation are also plotted.
A numerical study of effect of natural convection on thermal properties of horizontal oriented porous insulation
Eine numerische Untersuchung der Auswirkung der natürlichen Konvektion auf die thermischen Eigenschaften einer porösen Isolierung
Shnakar, V. (author) / Hagentoft, C.E. (author)
Thermal Envelope and Building Science ; 24 ; 155-167
2000
13 Seiten, 13 Bilder, 8 Quellen
Article (Journal)
English