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Determination of transient two-dimensional heat transfer in ventilated lightweight low sloped roof using Fourier series
Černe, Boštjan (Avtor), Medved, Sašo (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1016/j.buildenv.2006.04.022 Povezava se odpre v novem oknu

Izvleček
In this paper, the analysis of transient two-dimensional (2D) heat transfer inlow sloped roof with forced ventilated cavity made from lightweight buildingelements (LBE) is presented. For the heat transfer analysis the 2D numerical model, which was verified with experiments, was used. Forced ventilated cavity was configured in two different ways. In the first case the cavity was configured with coloured thin metal sheet and in the second case with thin metal sheet with added layer of thermal insulation and radiation barrier. Beside the influence of the ventilated cavity configuration on the transient 2D heat transfer in the LBE and on the cavity outlet air temperaturealso the influence of the LBE thickness, specific air flow rate through the cavity, inner air temperature and wind velocity was analysed. Multi-parametric equations for determination of Fourier series coefficients were formed. These coefficients were used for evaluation of transient 2D heat transfer on the inner side of the roof and cavity outlet air temperature for a clear day.

Jezik:Angleški jezik
Ključne besede:prenos toplote, zgradve, toplotne obremenitve, prezračevanje, numerični modeli, analize prenosa, lightweight roof, ventilated cavity, two-dimensional heat transfer, Fourier series
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2007
Št. strani:str. 2279-2288
Številčenje:Letn. 42, št. 6
UDK:536.24:697
ISSN pri članku:0360-1323
COBISS.SI-ID:9916699 Povezava se odpre v novem oknu
Število ogledov:664
Število prenosov:311
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:Building and environment
Skrajšan naslov:Build. environ.
Založnik:Elsevier
ISSN:0360-1323
COBISS.SI-ID:4318474 Povezava se odpre v novem oknu

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