Influence of the uncertainties of combustion product radiative properties on the accuracy of radiative heat transfer calculation in furnaces

被引：0

作者：

Liu, Linhua ^{[1
]}

Yu, Qizheng ^{[1
]}

Yuan, Liming ^{[1
]}

Tan, Heping ^{[1
]}

机构：

[1] Harbin Inst of Technology, Harbin, China

来源：

Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology | 1998年 / 4卷 / 01期

关键词：

Coal combustion - Computer simulation - Heat radiation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The process of radiative heat transfer in a three-dimension rectangular furnace was simulated by using discrete-ordinates method, and the corresponding computer code was compiled. With the code, the influence of the uncertainties of media absorption and scattering coefficients, phase function, spectral properties and emissivities of ash deposits on the accuracy of gas temperature and heat flux predictions in rectangular furnace was analyzed. It was found that the accuracy of gas temperature and heat flux predictions is limited mostly by the accuracy of radiative properties of combustion products, especially by the emissivities of ash deposits, and scattering can not be omitted in coal-fired furnaces.

引用

页码：104 / 111