Influence of Pressure on the Effective Thermal Conductivity and Electrical Resistivity of Coke

被引：0

作者：

Panov, E. N. ^{[1
]}

Vasilchenko, G. N. ^{[1
]}

Konstantinov, S. M. ^{[1
]}

Chirka, T. V. ^{[1
]}

机构：

[1] Kiev Polytech Inst, Kiev, Ukraine

来源：

COKE AND CHEMISTRY | 2014年 / 57卷 / 03期

关键词：

thermal conductivity; electrical resistivity; coke; fraction; temperature; pressure;

D O I：

10.3103/S1068364X14030077

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The influence of pressure on the effective thermal conductivity and electrical resistivity of coke is investigated. The scope of the investigation includes analysis of the relevant literature; measurement of the thermal conductivity and electrical resistivity of coke with different granulometric composition as a function of the temperature, at different pressures; and the derivation of regression equations for the experimental results. The temperature dependence of the coke's thermal conductivity is measured by the standard coaxial-cylinder method. The electrical resistivity of coke is measured by a two-probe potentiometric method. Coke of the <= 2 mm and 6-8 mm classes is used in the thermal tests, with a temperature range of 200-1000 degrees C, at pressures of 0-68 kPa. Coke of the 0-10 mm class is used in the electrical tests, with a temperature range of 30-800 degrees C, at pressures of 1.5-40 kPa. A second-order polynomial for the temperature, mean particle size, and pressure is derived as the regression equation for the thermal conductivity. A polynomial formula is derived for the electrical resistivity of coke at pressures of 13-40 kPa.

引用

页码：112 / 116

页数：5