Počet záznamov: 1
Mathematical description of the wood thermal conductivity above the hygroscopic range during wood freezing
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$a 10.17423/afx.2015.57.2.03 $2 DOI 100 $a 20151019a m y0sloy0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Mathematical description of the wood thermal conductivity above the hygroscopic range during wood freezing $f Nenčo S. Delijski ...[et al.] 215 $c Obr. 320 $a Lit. 330 $a A mathematical description of the wood thermal conductivity l of wood above the hygroscopic range during freezing of wood has been suggested. The description takes into account the physics of the freezing process of both the free and the hygroscopically bound water in wood. It reflects also the influence of the fiber saturation point of wood species on the value of their l during wood freezing and the influence of the temperature on the fiber saturation point of the wood during its freezing. A software program has been prepared for the computation of l according to the suggested mathematical description, which has been input in the calculation environment of Visual Fortran Professional. With the help of the program, computations have been done for the determination of the thermal conductivity in radial direction of often used in veneer and plywood production beech and poplar wood with moisture content 0.4 kg∙kg‒1 ≤ u ≤ 1.2 kg∙kg‒1 at the temperature range between 0 oC and –60 oC during freezing of the wood. The obtained results can be used for modeling of the wood freezing process and for technological analysis of processes of thermal and hydrothermal treatment of frozen wood materials, as well as in software of systems for model based automatic control of such treatment. 463 -1
$1 001 sldk_un_cat*0080583 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 57, č. 2 (2015), s. 27-37 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2015 610 1-
$9 sldk_un_auth*h000221 $a drevo $X wood 610 1-
$9 sldk_un_auth*0022899 $a matematický popis $X mathematical description 610 1-
$9 sldk_un_auth*h012403 $a tepelná vodivosť $X thermal conductivity 610 1-
$9 sldk_un_auth*h017047 $a zmrazovanie dreva $X wood freezing 610 1-
$9 sldk_un_auth*0020342 $a voľné napúčanie $X free swelling 610 1-
$9 sldk_un_auth*h016180 $a viazaná voda $X bound water 675 $a 630*81 $v 1. stred. $z slo 675 $a 674 $v 1. stred. $z slo 701 -1
$3 sldk_un_auth*p0039304 $a Delijski $b Nenčo S. $f 1945- $4 070 701 -1
$3 sldk_un_auth*0037972 $a Tumbarkova $b Natalia $4 070 701 -1
$3 sldk_un_auth*p0016139 $a Dzurenda $b Ladislav $f 1955- $p TUZDFOD $4 070 $T Katedra obrábania dreva 701 -1
$3 sldk_un_auth*p0043419 $a Brezin $b Veselin $4 070 801 -0
$a SK $b ZV001 $c 20151019 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/03-02-15_0.pdf
Počet záznamov: 1