Počet záznamov: 1
The influence of the combustion temperature of the non-volatile combustible wood matter of deciduous trees upon ash production and its properties
SYS 0082562 LBL 00000naa^^22^^^^^^^^450 005 20190401125823.9 017 70
$a 10.17423/afx.2016.58.1.11 $2 DOI 100 $a 20160321d m y0sloc0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a The influence of the combustion temperature of the non-volatile combustible wood matter of deciduous trees upon ash production and its properties $f Ladislav Dzurenda, Ľubomír Pňakovič 215 $c Obr., tab. 320 $a Lit. 330 $a This paper presents the results of determining the influence of combustion temperature (500–1000 °C) of non-volatile wood matter of deciduous trees Aspen poplar (Populus tremuloides Michx.), White birch (Betula verrucosa Ehrh.), European beech (Fagus sylvatica L.), English oak (Quercus robur L.) and Black locust (Robinia pseudoacacia L.) upon the production of ash and the content of calcium Ca, magnesium Mg, potassium K and iron Fe. From the functional dependences between the influence of the combustion temperature of the non-volatile wood matter of the analysed wood species, it follows that the relative decrease in ash content at 1000 ºC compared with a burning temperature of 500 °C is less for quaking Aspen poplar at ΔAd = 44.1 %, for the white birch at ΔAd = 57.8 %, for European beech at ΔAd = 43.2 %, for English oak at ΔAd = 43.1 % and for Black locust at ΔAd = 34.2 %. From determining the concentration of calcium Ca, magnesium Mg, potassium K in ash from the tree species using the ICP AES method, it follows that the highest proportion of ash for combustion temperature T = 500 °C is in the range of calcium values XCa = 221.4–397.6 g·kg-1, magnesium in ash XMg = 25.7–42.3 g·kg-1, potassium XK = 130.5–199.8 g·kg-1 and iron XFe = 1.78–2.88 g·kg-1. The influence of burning temperature is reflected in the increased concentration of calcium, magnesium and iron in ash and the decreased potassium concentrations in the ash. The decrease potassium in the ash is attributed to evaporation and potassium compounds found in non-volatile combustible of fuel wood. The decrease in potassium in the combustion process of non-volatile matter of fuel wood also affects the thermal characteristics of the produced ash and according to the criteria for the evaluation of biofuels from in terms of non-sintering ashes from biofuels (Ca + Mg) / K ≥1, contributes towards the stabilisation the creation of ash in crisp form. 463 -1
$1 001 sldk_un_cat*0082463 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 58, č. 1 (2016), s. 95-104 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2016 610 1-
$9 sldk_un_auth*h001259 $a palivové drevo $X fuelwood 610 1-
$9 sldk_un_auth*h004065 $a spaľovanie $X combustion 610 1-
$9 sldk_un_auth*h008959 $a prchavé organické látky $X volatile organic compounds 610 1-
$9 sldk_un_auth*h017507 $a popol $X ash 610 1-
$9 sldk_un_auth*h014911 $a horenie $X burning 675 $a 630*831 $v 1. stred. $z slo 675 $a 662.61 $v 1. stred. $z slo 675 $a 547 $v 1. stred. $z slo 675 $a 614.841.41 $v 1.stred $z slo 700 -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*0022420 $a Pňakovič $b Ľubomír $f 1988- $p TUZDFOD $4 070 $T Katedra obrábania dreva 801 -0
$a SK $b ZV001 $c 20160321 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/11-01-16_1_0.pdf
Počet záznamov: 1