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Problem kontaktne toplotne upornosti pri določevanju stacionarne enoosne toplotne prevodnosti prečno orientiranega lesnega tkiva
ID Bučar, Bojan (Author), ID Merhar, Miran (Author), ID Gospodarič, Bojan (Author)

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MD5: 7C29B3069156ED90B16783F7053E8529
PID: 20.500.12556/rul/da6d4b43-2704-4819-a368-12ff51eb3a82

Abstract
V članku je prikazana analiza vpliva kontaktne toplotne upornosti na toplotno prevodnost slojevitega nevezanega masivnega lesnega kompozita izdelanega iz javorjevega lesa (Acer pseudoplatanus). Uporabljena je bila stacionarna eksperimentalna metoda z možnostjo zvezne nastavitve temperaturne razlike neodvisno od preizkušanca. Med eksperimentom je prišlo v seriji predhodno paralelno uravnovešenih preizkušancev do pojava občutnega vlažnostnega gradienta, kar je izključno posledica Soret-ovega efekta. Neposrednega vpliva nastalega vlažnostnega gradienta na toplotno prevodnost slojevitega kompozita nismo analizirali. Prikazani in pojasnjeni so rezultati opravljenih analiz. Hipoteza o signifikantnem vplivu kontaktne toplotne upornosti se je izkazala za pravilno.

Language:Slovenian
Keywords:toplotna prevodnost lesa, kontaktni toplotni upor, Soretov efekt, termodifuzija
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije
Year:2005
Number of pages:Str. 52-56
Numbering:Let. 57, št. 3
PID:20.500.12556/RUL-60518 This link opens in a new window
UDC:536
ISSN on article:0024-1067
COBISS.SI-ID:1293193 This link opens in a new window
Publication date in RUL:10.07.2015
Views:1200
Downloads:297
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Record is a part of a journal

Title:Les
Shortened title:Les
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze
ISSN:0024-1067
COBISS.SI-ID:13940224 This link opens in a new window

Secondary language

Language:Slovenian
Title:The problem of contact heat resistance in determining statonary monoaxial heat conductivity of transversely oriented wood tissue
Abstract:
The paper presents the analysis of the influence of contact heat resistance inheat conductivity of layered unbound massive wood composite made of maple wood (Acer pseudoplatanus). A stationary experimental method was used, permitting continuous temperature setting independently of the test specimen. During the experiment, a significant humidity gradient occurred in the series of previously conditioned test specimens, which was exclusively the result of the Soret effect. Direct influence of the resulting humidity gradient on heat conductivity of layered composite was not analysed. The results of the analyses performed are presented and clarified. The hypothesis of a significant influence of contact heat resistance has been proven correct.

Keywords:thermal conductivity of wood, contact thermal reistance, Soret effects, thermal-diffusion

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