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Št. zadetkov: 3
Full-scale experimental study on the critical Rayleigh number for the onset of internal natural convection inside a horizontal insulation layer of blown glass wool
Hicham Johra, Pierre Léard, Martin Veit, Rasmus Lund Jensen
Izvirni znanstveni članek
Oznake: notranja konvekcija;prenos toplote;porozen izolacijski material;poskusi v polnem merilu;internal convection;heat transfer;porous insulation material;full-scale experiments;
Glass wool is a common high-performance insulation material employed in buildings. The effective thermal conductivity of such materials with large open-pore structures can drastically increase if internal natural convection takes place inside the latter. This can occur in the case of a thick insulat ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Experimental investigations of internal macro-scale convection in the loose-fill wood fiber insulation layer of a full-scale wall element
Martin Veit, Hicham Johra, Nikolaj Rask, Simon M. Roesgaard, Rasmus Lund Jensen
Izvirni znanstveni članek
Oznake: thermal performance;internal convection;performance gap;insulation materials;
With increasing restrictions on the energy efficiency of buildings, thicker insulation layers are installed in new and refurbished buildings to reduce heat losses. Previous studies have indicated that internal macro-scale convection cells can occur in thick porous insulation layers, decreasing the t ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
50 years of gas-phase velocity measurements in fire science
Martin Veit, Andrea Lucherini, Friderik Knez, Rasmus Lund Jensen, Grunde Jomaas, Bart Merci
Izvirni znanstveni članek
Oznake: negotovost;plinska faza;hitrost zraka;diagnostika požara;uncertainty;gas-phase;air velocity;fire diagnostics;
The bidirectional velocity probe, developed by McCaffrey and Heskestad in 1976, remains one of the most widely used instruments for gas-phase velocity measurements in fire research. Despite its extensive use, the original calibration methodology lacks a rigorous uncertainty quantification, and subse ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Št. zadetkov: 3
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