正丁烷催化燃烧数值模拟及影响因素分析
收稿日期: 2016-12-29
修回日期: 2017-01-22
网络出版日期: 2017-02-28
基金资助
国家自然科学基金面上项目（51276096）
Numerical Simulation of Catalytic Combustion of n-Butane and Analysis of Influencing Factors
Received date: 2016-12-29
Revised date: 2017-01-22
Online published: 2017-02-28
于亚薇 , 钟北京 . 正丁烷催化燃烧数值模拟及影响因素分析[J]. 新能源进展, 2017 , 5(1) : 1 -7 . DOI: 10.3969/j.issn.2095-560X.2017.01.001
The catalytic combustion characteristics of n-butane/air mixture were investigated numerically by using Fluent with detailed surface reaction mechanism. This work is mainly focused on the effect of combustor wall thickness, thermal conductivity and convection heat transfer coefficient on combustion characteristic and flame stability. The results show that wall thickness will benefit horizontal heat transfer, leading to a more uniform temperature. Thermal conductivity has a significant effect on temperature uniformity and the convection heat transfer coefficient is the dominant factor on the heat loss. Large thermal conductivity is helpful for preheating the mixture and resulting in easier reaction. However, the increasing horizontal heat loss that comes along is against the combustion stability.
Key words： n-butane; catalytic combustion; heat transfer parameter; heat loss; flammable limit
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