The influence of chips species on particleboard thermal insulation

Namen diplomskega dela je ugotoviti vpliv velikosti ivernih delcev na toplotno izolacijske lastnosti iverne plošče. Izdelali smo tri iverne plošče velikosti 200x200 mm. Vsaka vzorčna plošča je bila izdelana iz ivernih delcev različnih velikosti. Prva vzorčna plošča je bila izdelana iz majhnih delcev iveri velikosti 1,27 mm, 1 mm, 0,6 mm ter 0,237 mm. Druga vzorčna plošča je bila izdelana iz srednjih delcev iveri velikosti 2 mm in 1,5 mm. Tretja vzorčna plošča pa je bila izdelana iz velikih delcev iveri velikosti 4 mm in 6,14 mm. Prehod temperature smo merili z dvema termočlenoma, ki sta bila nameščena na zgornjo in spodnjo stran vzorčne plošče, tretji termočlen pa je meril temperaturo okolice. Ugotovili smo, da velikost delcev zelo vpliva na prehod toplote. Od pripravljenih ivernih plošč je imela najboljše izolacijske lastnosti plošča, ki je bila izdelana iz velikih delcev iveri.The purpose of this graduation thesis is to analyze the influence of particles\u27 size on chipboard thermal insulation. For this purpose three different boards (size: 200x200mm) were prepared. Every board was composed of partices of different sizes. The first board was composed of small particles of the size 1,27mm, 1mm, 0,6mm and 0,23mm. The second board was composed of medium particles of the size 2mm and 1,5mm. The third board was composed of large particles of the size 4mm and 6,14mm. Thermal conductivity was measured by two thermocouples that were positioned on the upper and underside of the board. A third thermocouple was used to record the ambient temperature. The conclusion was reached that particles size affects thermal conductivity. The chipboard composed of large size particles proved to have the best insulation properties