Vpliv vlažnosti na toplotno prevodnost opažnih plošč : diplomski projekt

Lušin, Marko (author), Gorišek, Željko (mentor), Straže, Aleš (reviewer)

Opažne plošče imajo poleg svoje osnovne funkcije lahko tudi vlogo toplotnega izolatorja. Proučevali smo vpliv vlažnosti, gostote in premaznega sistema na hitrost segrevanja, termično difuzivnost in toplotno prevodnost standardnih smrekovih opažnih plošč debeline 26 mm. Variabilnost proučevanih parametrov je bila zelo velika, zato značilnih statističnih razlik in vplivov nismo uspeli potrditi, povprečne vrednosti pa nakazujejo, da je toplotna izolativnost plošč brez premazov izolacijsko ugodnejša od plošč z malaminskim premazom, z višanjem gostote se toplotna prevodnost nekoliko povečuje, slabšo izolativnost pa izkazujejo tudi plošče z višjo vlažnostjo.

• Language: Slovenian
• Keywords: les, opažne plošče, toplotna prevodnost, termična difuzivnost, vlažnost, gostota
• Work type: Diploma project paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [M. Lušin]
• Year: 2013
• Number of pages: VI, 28 f.
• PID: 20.500.12556/RUL-117612
• UDC: 630*812.141:862
• COBISS.SI-ID: 2167945
• Publication date in RUL: 17.07.2020

LUŠIN, Marko, 2013, Vpliv vlažnosti na toplotno prevodnost opažnih plošč : diplomski projekt [online]. Bachelor’s thesis. Ljubljana : M. Lušin. [Accessed 1 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=117612

Secondary language

• Language: English
• Title: Impact of moisture content on thermal conductivity of plywood boards

Abstract

In addition to their basic function playwood boards can be used also as a heat insulator . We studied the effect of moisture, density and coating system on the rate of heating, on the thermal diffusivity and on the thermal conductivity. Playwood boards were constructed from three layers of spruce wood with total thickness of 26 mm. Variability of the examined parameters was very large therefore we were not able to confirm the statistical differences. In average the playwood board without coating had slightly better thermal insulation than boards whit melamine coating. With higher density thermal conductivity slightly increases by Boards with melamine coating exhibited somewhat dependency from density and moisture content.

• Keywords: wood, plywood, thermal conductivity, thermal diffusivity, moisture content, density