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

• Autorzy: Kosowska-Golachowska M. , Gajewski W. , Musiał T.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

effective thermal conductivity; effective thermal diffusivity; specific heat; laser flash method; hard coal; brown coal; anthracite

PL

przewodność cieplna efektywna; dyfuzja cieplna; ciepło właściwe; laserowa metoda impulsowa; węgiel kamienny; węgiel brunatny; antracyt

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2014
• Tom: Vol. 35, no. 3
• Strony: 3--16
• Opis fizyczny: Bibliogr. 22 poz., il.

Twórcy

autor

Kosowska-Golachowska M.

• Czestochowa University of Technology, Institute of Thermal Machinery, Armii Krajowej 21, 42-201 Częstochowa, Poland

autor

Gajewski W.

• Czestochowa University of Technology, Institute of Thermal Machinery, Armii Krajowej 21, 42-201 Częstochowa, Poland

autor

Musiał T.

• Czestochowa University of Technology, Institute of Thermal Machinery, Armii Krajowej 21, 42-201 Częstochowa, Poland

Bibliografia

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Uwagi

EN

This work was financially supported by the National Science Centre (Poland) under grant No. N N512 457940. The support is gratefully acknowledged.