Počet záznamov: 1
Computing the 2D temperature distribution in logs stored for a long time in an open warehouse in winter and during subsequent autoclave steaming
SYS 0109927 LBL 00000naa^^22^^^^^^^^450 005 20210426152013.6 017 70
$a 10.17423/afx.2021.63.1.05 $2 DOI 100 $a 20210426a m y0sloy0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Computing the 2D temperature distribution in logs stored for a long time in an open warehouse in winter and during subsequent autoclave steaming $f Nenčo S. Delijski ...[et al.] 215 $c Graf., tab. 320 $a Lit. 330 $a An approach to computing and research on the 2D non-stationary temperature distribution in horizontally situated logs in an open warehouse under the influence of periodically changing atmospheric temperature in winter and during their subsequent steaming in autoclaves is described in the paper. Mathematical descriptions of the changing atmospheric temperature and also of the temperature of the steaming medium in the autoclaves and of the conditioning air medium after steaming are introduced as boundary conditions in own mutually connected 2D non-linear mathematical models of the log freezing and defrosting processes. Numerical solutions of the coupled models in the calculation environment of Visual FORTRAN Professional are given as an application of the suggested approach. The results from a simulative investigation of the change in the 2D temperature field and average mass temperature of beech (Fagus sylvatica L.) logs with a diameter of 0.4 m, length of 0.8 m, and moisture content of 0.6 kg∙kg-1 during their 5 dayand night-long continuous alternating freezing and defrosting at sinusoidal change of the air temperature with different initial values below and equal to 0 °C and with different amplitudes, and also during steaming of such frozen logs with different initial temperature in an autoclave and their subsequent conditioning are graphically presented and analysed. 463 -1
$1 001 sldk_un_cat*0109573 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Vol. 63, no. 1 (2021), s. 49-62 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2021 610 1-
$9 sldk_un_auth*h013157 $a autoklávy $X autoclaves 610 1-
$9 sldk_un_auth*h002809 $a parenie dreva $X steaming of wood 610 1-
$9 sldk_un_auth*h015565 $a bukové výrezy $X beech logs 610 1-
$9 sldk_un_auth*0056688 $a 2D modely $X 2D models 610 1-
$9 sldk_un_auth*0056689 $a atmosférická teplota $X atmospheric temperature 610 1-
$9 sldk_un_auth*0006764 $a zamrznuté drevo $X frozen wood 610 1-
$9 sldk_un_auth*0026925 $a rozmrazovanie dreva $X wood defrosting 610 1-
$9 sldk_un_auth*0053741 $a riadenie podľa modelu $X model based control 675 $a 630*846 $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*p0016139 $a Dzurenda $b Ladislav $f 1955- $p TUZDFOD $4 070 $T Katedra obrábania dreva 701 -1
$3 sldk_un_auth*p0026872 $a Niemz $b Peter $4 070 701 -1
$3 sldk_un_auth*0037974 $a Angelski $b Dimitar $4 070 701 -1
$3 sldk_un_auth*0037972 $a Tumbarkova $b Natalia $4 070 801 -0
$a SK $b ZV001 $c 20210426 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/05-01-21.pdf
Počet záznamov: 1