Počet záznamov: 1
Determination of charring rate of oak wood
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$a 10.17423/afx.2023.65.2.03 $2 DOI 100 $a 20240109a m y0sloy0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Determination of charring rate of oak wood $f Alena Párničanová ... [et al.] 215 $c Graf., obr., tab. 320 $a Lit. 330 $a This paper deals with the determination of selected fire properties of oak wood, i.e., charring rate, which is used in practice to model and investigate the fire causes. Thermal loading was carried out using a measuring apparatus described in Utility Model No. 9373 registered by the Industrial Property Office of the Slovak Republic. Oak wood samples with dimensions of 40 × 50 × 50 mm (l × w × t) were thermally loaded by a heat flux of 15, 20, 25 and 30 kW·m-2, using a ceramic infrared heater. Two methods of determination of the charring rate, based on reaching the temperature of 300 ⁰C in individual depths in a specific time and according to the thickness of the charred layer formed in a time interval of 1800 s measured using a caliper were compared. Both methods confirmed that the charring rate is increasing with increasing thermal loading. The charring rate determined based on the temperature of 300 ⁰C ranged from 0.65 to 0.88 mm·min-1. According to the second method, the charring rate reached values from 0.41 to 0.86 mm·min-1. More accurate results were achieved by applying the method of determination of the charring rate based on the charred layer measured by a caliper. However, the method of determination of the charring rate using thermocouples can be considered less subjective because the temperature is measured automatically, using thermocouples compared to manual measurement using a caliper. The obtained results can be used as input data for computer- supported modeling of indoor fires. 463 -1
$1 001 sldk_un_cat*0122304 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Vol. 65, no. 2 (2023), s. 25-33 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2023 610 1-
$9 sldk_un_auth*h006549 $a dubové drevo $X oak wood 610 1-
$9 sldk_un_auth*h036745 $a tepelné zaťaženie dreva $X thermal load of wood 610 1-
$9 sldk_un_auth*h017559 $a rýchlosť odhorievania $X charring rate 610 1-
$9 sldk_un_auth*h014597 $a zuhoľnatené vrstvy $X carbonized layers 610 1-
$9 sldk_un_auth*h014981 $a zuhoľňovanie $X charring rate 675 $a 630*81 $v 1. stred. $z slo 675 $a 630*812.145 $v 1. stred. $z slo 701 -1
$3 sldk_un_auth*0055904 $a Párničanová $b Alena $f 1998- $p TUZDFPO $4 070 $T Katedra protipožiarnej ochrany 701 -1
$3 sldk_un_auth*p0050468 $a Zachar $b Martin $f 1981- $p TUZDFPO $4 070 $T Katedra protipožiarnej ochrany 701 -1
$3 sldk_un_auth*p0017624 $a Baloghová $b Danica $f 1964- $p TUZFECHT $4 070 $T Katedra chémie 701 -1
$3 sldk_un_auth*0057035 $a Zacharová $b Lucia $4 070 801 -0
$a SK $b ZV001 $c 20240109 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/03-02-23.pdf
Počet záznamov: 1