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一、前言 本文介绍了用激光脉冲法测量煤粉制样的热物性。测量是在有自然对流的条件下进行的,常用的Parker模型已不适用。文中提出两种实验原理和数据处理方法,一种是数值修正法,另一种是参数估计法。对于水利电力部西安热工研究所提供的三个煤种六个试样进行测试,取得了初步结果。文中所用方法对其它材料的热物性测定也有参考价值。
First, the preface This article describes the use of laser pulsed pulverized coal samples to measure the thermal properties. The measurements are made under natural convection conditions. Commonly used Parker models are not applicable. In this paper, two experimental principles and data processing methods are proposed, one is the numerical correction method and the other is the parameter estimation method. Preliminary tests were conducted on six samples of three coal types provided by Xi’an Thermal Research Institute of the Ministry of Water Resources and Electric Power. The preliminary results were obtained. The method used in this paper also has reference value for the determination of thermophysical properties of other materials.