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Vplyv termickej modifikácie smrekového dreva na teplotu vznietenia rozvíreného drevného prachu
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$a Vplyv termickej modifikácie smrekového dreva na teplotu vznietenia rozvíreného drevného prachu $d Influence of thermal modification of spruce wood on the ignition temperature of wood dust cloud $f Jozef Martinka ...[et al.] 215 $c Obr., tab. 320 $a Lit. 330 $a The article deals with the influence of thermal modification and particle size of spruce wood on the ignition temperature of dust cloud assessment. There were used two kinds of samples: thermally unmodified sample and thermally modified sample according to ThermoWood – Thermo-S programme (maximum temperature during the thermal modification was 190 °C). There were investigated three fraction of both unmodified and modified spruce wood: dust with particles size less than 71 μm, dust with particles size from 71 to 150 μm and dust with particles size from 150 to 200 μm. The ignition temperatures of investigated dust clouds were determined by the means and testing procedure according to STN EN 50281-2-1:2002 at three samples mass (0.1, 0.2 and 0.5 g) and three air pressures (20, 30 and 50 kPa). The water content of investigated samples was 0 % wt. The influence of thermal modification and dust particles size on ignition temperature of dust clouds was assessed by Duncan´s test. The results obtained by Duncan´s test show that dust particles size has a significant influence while the thermal modification has only negligible influence on dust cloud ignition temperature. The minimum ignition temperature of both thermally unmodified (420 °C) and thermally modified (410 °C) samples were determined for dust cloud formed by particles with dimensions less than 71 μm at 0.5 g sample mass and 50 kPa air pressure. 330 $a V predloženom článku bol posúdený vplyv veľkosti častíc a termickej modifikácie smrekového dreva na teplotu vznietenia rozvíreného prachu. Na výskum boli použité vzorky prachu z termicky nemodifikovaného smrekového dreva a zo smrekového dreva modifikovaného v atmosfére čistého vzduchu teplotným programom ThermoWood – Thermo-S (maximálna teplota počas termickej modifikácie 190 °C). 463 -1
$1 001 sldk_un_cat*0071542 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 56, č. 1 (2014), s. 87-95 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2014 610 1-
$9 sldk_un_auth*h042410 $a termicky modifikované drevo $X thermally modified wood 610 1-
$9 sldk_un_auth*h005962 $a smrekové drevo $X spruce wood 610 1-
$9 sldk_un_auth*0009783 $a teplota vznietenia $X ignition temperature 610 1-
$9 sldk_un_auth*h010478 $a drevný prach $X wood dust 610 1-
$9 sldk_un_auth*h028058 $a požiarne riziká $X fire risk 675 $a 630*812.14 $v ODT $z cze 675 $a 674.032.475.5 $v 2. stred. $z slo 675 $a 630*839.84 $v 1. stred. $z slo 675 $a 614.841.2 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*0010870 $a Martinka $b Jozef $f 1983- $4 070 701 -1
$3 sldk_un_auth*p0015986 $a Kačíková $b Danica $f 1964- $p TUZDFPO $4 070 $T Katedra protipožiarnej ochrany 701 -1
$3 sldk_un_auth*0016470 $a Rantuch $b Peter $f 1985- $p TUZDFPO $4 070 $T Katedra protipožiarnej ochrany 701 -1
$3 sldk_un_auth*p0001592 $a Balog $b Karol $f 1949- $4 070 801 -0
$a SK $b ZV001 $c 20140331 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/10-1-14-martinka-kacikova-rantuch-balog_1.pdf
Počet záznamov: 1