N2 - In this study, a new laser flash system was proposed for the determination of the thermal conductivity of brown coal, hard coal and anthracite. The main objective of the investigation was to determine the effect of coal rank, composition, physical structure and temperature on thermal conductivity. The solid fuels tested were medium conductors of heat whose determined thermal conductivities were in the range of 0.09 to 0.23 W/(m K) at room temperature. The thermal conductivity of the solid fuels tested typically increased with the rank of coal and the measurement temperature. The results of this study show that the physical structure of solid fuels and temperature have a dominant effect on the fuels' thermal conductivity. L1 - http://www.czasopisma.pan.pl/Content/94561/PDF/01_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/94561 PY - 2014 IS - No 3 September EP - 16 DO - 10.2478/aoter-2014-0018 KW - effective thermal conductivity KW - effective thermal diffusivity KW - specific heat KW - laser flash method KW - hard coal KW - brown coal anthracite A1 - Kosowska-Golachowska, Monika A1 - Gajewski, Władysław A1 - Musiał, Tomasz PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences DA - 2014 T1 - Determination of the effective thermal conductivity of solid fuels by the laser flash method SP - 3 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/94561 T2 - Archives of Thermodynamics