J. For. Sci., 2014, 60(11):451-455 | DOI: 10.17221/70/2014-JFS

Analysis of woodchip heating capacity calculated according to technical standards and measurements of calorific valueOriginal Paper

M. Lieskovsky1, J. Dvořák2, P. Natov2, J. Chojnacki3, K. Rokosz3
1 Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovak Republic
2 Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic
3 Faculty of Mechanical Engineering, Koszalin University of Technology, Koszalin, Poland

Woodchip sampling may be done according to two methodologies, based on the volume or calorific value of the fuel. The paper compares heating values obtained through relative humidity measurements according to Slovak technical standards and through determination of calorific value according to the ISO 1928:2003 Standard. The aim is to compare values obtained by both methods from a selection set and to determine possible reasons in case various values are obtained. Based on the results obtained it may be confirmed that differences between the heating value calculated according to the ISO 1928:2003 Standard and according to the STN 48 0057 (2004) and STN 48 0058 (2004) Standards are statistically significant. The average difference in heating value is 0.629 MJ.kg-1.

Keywords: wood chips; heat capacity; caloric value; relative moisture

Published: November 30, 2014  Show citation

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Lieskovsky M, Dvořák J, Natov P, Chojnacki J, Rokosz K. Analysis of woodchip heating capacity calculated according to technical standards and measurements of calorific value. J. For. Sci. 2014;60(11):451-455. doi: 10.17221/70/2014-JFS.
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    References

    1. Anonymous (2006): Energetická politika SR. [Energy Policy of the Slovak Republic.] Bratislava, Ministerstvo hospodárstva Slovenskej republiky: 18.
    2. Curvers C., Gigler J.K (1996): Characterization of Biomass Fuels, An Inventory of Standard Procedures of Biomass Properties. Petten, ECN: 66.
    3. Chytrý M. (2008): Reálné možnosti využití dřevní biomasy (dendromasy) jako zdroje energie. [Practical Possibilities of Wood Biomass (Dendromass) Utilization as an Energy Source.] In: Význam dřevoprodukční funkce lesa pro životní prostředí. Sborník referátů. Praha, 2. 10. 2008. Kostelec nad Černými lesy, Lesnická práce: 33-36.
    4. Dzurenda L. (2005): Spaľovanie dreva a kôry. [Wood and Bark Burning.] Zvolen, Vydavateľstvo TU vo Zvolene: 124.
    5. Fijałkowska D., Styszko L. (2011): Ciepło spalania biomasy wierzbowej. [Calorific value of willow biomass.] Rocznik Ochrona Środowiska, 13: 875-889.
    6. FINBIO (1998): Quality Assurance Manual for Solid Wood Fuels in Finland, Vol. 7. Jyväskylä, Finbio Publications: 88.
    7. Geffertova J., Geffert A. (2011): Energetický potenciál vybraných odpadov s obsahom biomasy. [Energetic potential of selected types of waste containing biomass.] Acta Facultatis Xylologiae Zvolen, 53: 93-99.
    8. Jandačka J., Malcho M. (2007): Biomasa ako zdroj energie. [Biomass as Energy Source.] Žilina, Vydavateľstvo Juraj Štefun GEORG: 82.
    9. MPO CR (2004): Státní energetická koncepce České republiky. [State Energy Concept of the Czech Republic.] Praha, Ministerstvo průmyslu a obchodu České republiky: 49.
    10. ONORM M7132 1 (1998): Energiewirtschaftliche Nutzung von Holz und Rinde als Brennstoff - Begriffsbestimmungen und Merkmale. Wien, Österreichisches Normungsinstitut: 9.
    11. Puttkamer T. (2005): Charakterisierung biogener Festbrennstoffe. Available at http://elib.uni-stuttgart.de/opus/volltexte/2005/2289/pdf/Druckversion_Diss_von_Puttkamer.pdf
    12. Simanov V. (1993): Dříví jako energetická surovina: Možné způsoby energetického využívání těžebního odpadu a dalších opomíjených zdrojů dříví. [Wood as Energy Resource: Possible Methods of Energetic Utilization of Logging Residues and Other Neglected Wood Sources.] Praha, Agrospoj: 116.
    13. Suchomel J., Gejdoš M. (2012): Vývoj stredoeurópskeho trhu s vybranými palivami na báze dreva. [Development of Central European Market with Selected Wood-based Fuels.] In: Financovanie Lesy - drevo. Medzinárodná vedecká konferencia. Zvolen, 22. 11. 2012. Zvolen, TU vo Zvolene: 53-62.
    14. Sztyma-Horvat M., Styszko L. (2011): Emisja tlenku azotu NOx ze spalania biomasy wierzbowej rocznik. [Nitrogen oxides NOx emissions from combustion of willow biomass.] Ochrona Środowiska, 13: 787-800.
    15. Váňa J. (2003): Biomasa pro energii a technické využití. [Biomass for Energy and Technical Utilization.] Available at http://biom.cz/cz/odborne-clanky/biomasa-pro-energii-atechnicke-vyuziti
    16. Vlk V. (2009): Obnovitelné zdroje energie. [Renewable Energy Sources.] Available at http://biom.cz/cz/odborne-clanky/obnovitelne-zdroje-energie

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