High Temperature Heat Transfer Property of ZrO2 Fiber Heat-insulating Materials

被引：0

作者：

Wang Guanghai ^{[1
]}

Chen Yufeng ^{[1
]}

Ding, Han ^{[2
]}

Qin, Wang ^{[2
]}

机构：

[1] China Bldg Mat Acad, Beijing 100024, Peoples R China

[2] Sci & Technol Scramjet Lab, Beijing 100074, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2015年 / 44卷

关键词：

fibers heat-insulating materials; genetic alogorithm; radiative heat transfer;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Heat transfer property of ZrO2 fiber heat-insulating materials at high temperature was studied by genetic algorithm. Based on the example of ZrO2 fiber heat-insulating material by Zircar Inc., thermal conductivity and radiative heat flux from 400 degrees C to 1650 degrees C was computed. In addition, radiative attenuation coefficient and fraction of conduction, convection and radiation were studied. The results show that the calculated values and experimental values of thermal conductivity fit well. And convection and radiation increase significantly along with temperature. Particularly, radiation increases more rapidly. At 1650 degrees C, radiative heat transfer accounts for about 41% of the total heat transfer flux.

引用

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页码：761 / 764

页数：4

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