NONEQUILIBRIUM FLOW AND KINETICS OF CHEMICAL REACTIONS IN CHAR ZONE

被引：2

作者：

APRIL, GC

PIKE, RW

DELVALLE, EG

机构：

[1] Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana

来源：

JOURNAL OF MACROMOLECULAR SCIENCE-CHEMISTRY | 1969年 / A 3卷 / 04期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1080/10601326908053836

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In the temperature range of 500–2500°F, nonequilibrium flow analysis predicted only a small change in pyrolysis gas composition as the gases flow through the char zone. Essentially all of the reactions took place in the temperature range of 2000–2500°F. Comparing nonequilibrium flow with the two limiting cases, the energy absorbed in the char zone for frozen flow was two-thirds that of nonequilibrium flow, and equilibrium flow was about four times that of nonequilibrium flow at the 2500°F level. Experimental results were obtained simulating the char zone during ablation in the temperature range of 700-1650°F using the char zone thermal environment simulator. The data showed that the flow was essentially frozen, and this was accurately predicted by the nonequilibrium flow analysis. The limiting case of equilibrium flow incorrectly predicted significant changes in the pyrolysis gas composition over the temperature range investigated. © 1969, Taylor & Francis Group, LLC. All rights reserved

引用

页码：685 / &

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