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Comparsion of the activation energy required for spontaneous and flash point of the Norway spruce wood and thermowood specimens
Názov Comparsion of the activation energy required for spontaneous and flash point of the Norway spruce wood and thermowood specimens Aut.údaje Martin Zachar ...[et al.] Spoluautori Zachar Martin TUZDFPO - Katedra protipožiarnej ochrany Majlingová Andrea TUZDFPO - Katedra protipožiarnej ochrany Šišulák Stanislav Baksa Ján Zdroj.dok. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. Roč. 59, č. 2 (2017), s. 79-90. - Zvolen : Technická univerzita vo Zvolene, 2017 Poznámky Lit. Jazyk dok. angličtina Krajina Slovenská republika Systematika 630*174.7 630*812.14 Heslá indukčná perióda - induction period * smrek obyčajný - Norway spruce - Picea abies L. Karst. * termodrevo - thermowood * Arrheniova rovnica - Arrhenius`s equation * indukčná perióda - induction period Anotácia The important fire characteristics include also the data related to the material activation energy, which determination enhances the understanding of the combustion process, reasons of fire initiation and the typical behaviour of specific materials in thei r thermal degradation process. They can be also used as input parameters when modelling the dynamics of fires, on which base can be assessed existing fire safety measures and further proposed new one, more efficient, encompassing also the suitable design o f building construction, especially of wooden buildings. Except the sophisticated procedures to determine the activation energy of materials, using e.g. the cone calorimeter, there are still in use the mathematical models, which often represent simplified procedures to determine them without any need to have such an expensive equipment. In the paper, there are described the particular procedures to determine the activation energy of the spontaneous ignition / flash point of the Norway spruce wood and Norway spruce Thermowood specimens tested. The specimens were represented by the prisms with dimensions of 20 × 20 × 10 mm. The calculation of the spontaneous ignition / flash point activation energy of the two types of specimens tested was carried out in accord ance to the analogy of the equation of Arrhenius for calculating the activation energy. Spontaneous ignition / flash ignition induction periods of the specimens, tested at various temperatures, were determined by the Setchkin Furnace test, in accordance to the STN ISO 871 standard. Finally, the resulting values of the spontaneous ignition / flash point activation energy for Norway spruce wood and Thermowood were compared. There was found that higher spontaneous ignition / flash point activation energy was n ecessary to be added to Norway spruce wood specimens and lower one to the Thermowood specimens. However, the differences in the activation energy values are not so much significant as expected . URL https://df.tuzvo.sk/sites/default/files/08-02-17_0_0_0_0_0_0.pdf Kategória publikačnej činnosti ADN Báza dát xcla - ČLÁNKY Druh dok. RZB - rozpis článkov zo zborníkov Odkazy PERIODIKÁ-Súborný záznam periodika Zväzky 2017: 1-2 
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Počet záznamov: 1