散体热导率的实验研究  

Experimental Investigation of Thermal Conductivity of Particulate Materials

作　　者：陈福[1] 徐志明[1] 杨善让[1] 

机构地区：[1]东北电力学院动力工程系

出　　处：《东北电力学院学报》1997年第2期1-5,共5页Journal of Northeast China Institute of Electric Power Engineering

基　　金：国家自然科学基金

摘　　要：在实验室内用球体法测量了四种尺寸分布自然堆积煤灰的热导率，考察了温度、颗粒尺寸对热导率的影响。结果表明煤灰在自然堆积状态下的热导率随温度的升高和颗粒尺寸的增大而增加。The thermal conductivities of 4 kinds of coal ash piled up in a natural state were measured by the ball method in laboratory.The effects of temperature and particle size on thermal conductivities were analyzed.The experimental data show that the natural piled coal ash thermal conductivity increases with increasing temperature and particle size.

关 键 词：散体 热导率 实验研究 自然堆积煤灰 球体法 

分 类 号：TK121[动力工程及工程热物理—工程热物理]