Using the heat flow plate method for determining thermal conductivity of building materials

International Conference on Applied Sciences 2016

Flori, M.^1 ; Puan, V.^1 ; Vîlceanu, L.^1

Politehnica University of Timisoara, Engineering and Management Department, Vasile Parvan str., no. 1-2, Timisoara

300223, Romania^1

关键词: Calorimetric chambers;    Constant heat flux;    Experimental techniques;    Insulating foams;    Reference material;    Steady state;    Temperature differences;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/163/1/012018/pdf
DOI  :  10.1088/1757-899X/163/1/012018

来源: IOP

【 摘 要 】

The heat flow plate method is used to determine thermal conductivity of a building material sample made of Rohacell (insulating foam). Experimental technique consists in placing the sample with a reference material on top (polystyrene sample) in a calorimetric chamber and heating from underside. Considering that the heat flux which passes through the two layers is constant and knowing thermal conductivity of the reference material, the sample thermal conductivity is determined. The temperature difference between the two opposite sample's sides is recorded only when the steady state is achieved (constant heat flux).