Determination of the effective thermal conductivity of solid fuels by the laser flash method

Archives of Thermodynamics

W?adys?aw GajewskiCzestochowa University of Technology, Institute of Thermal Machinery, Armii Krajowej 21, 42-201 Cz?stochowa, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Tomasz Musia?Czestochowa University of Technology, Institute of Thermal Machinery, Armii Krajowej 21, 42-201 Cz?stochowa, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Monika Kosowska-GolachowskaCorresponding authorCzestochowa University of Technology, Institute of Thermal Machinery, Armii Krajowej 21, 42-201 Cz?stochowa, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Czestochowa University of Technology, Institute of Thermal Machinery, Armii Krajowej 21, 42-201 Cz?stochowa, Poland

关键词: Keywords: Effective thermal conductivity;    Effective thermal diffusivity;    Specific heat;    Laser flash method;    Hard coal;    Brown coal;    Anthracite;   

DOI  :  10.2478/aoter-2014-0018

学科分类：能源（综合）

来源: Polska Akademia Nauk * Oddzial w Gdansku, Instytut Maszyn Przeplywowych / Polish Academy of Sciences, Institute of Fluid-Flow Machinery

【 摘 要 】

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 0.23W/(mK) 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.

【 授权许可】

Unknown