Study on the Calculation of Boron Combustion in Different Oxidizing Atmospheres

Xiao Yu Ding; Xing Jin; Peng Zhang

doi:10.4028/www.scientific.net/AMM.651-653.103

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 651-653Study on the Calculation of Boron Combustion in...

Study on the Calculation of Boron Combustion in Different Oxidizing Atmospheres

Abstract:

The calculations of thermal equilibrium of B/O and B/C/H/O/N system were done based on the principle of Gibbs minimum free energy by HSC Chemistry software. The results indicated that in B/O system when B/O mole ratio is kept at 2:3, the main gas phase boron contained products transform from B₂O₃(g) to BO(g) and BO₂(g) with increase of temperature. Improving the environmental pressure is beneficial to increase the heat release of boron combustion. As to B/C/H/O/N system, B/C/H/O/N mole ratio is settled to be 2:1:2:6:1. The main combustion products are N₂(g), HBO₂(g), CO₂(g), H₂O and B₂O₃(g) when the environmental temperature is relatively low in the case that the heat release of fuel can be obtained enough. When the environmental temperature rises, the major combustion products are CO(g), BO(g) and so on. It shows that high temperature is not beneficial for heat release of boron combustion. Like B/O system, improving the environmental pressure helps to increase the heat release of B/C/H/O/N system combustion.

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Periodical:

Applied Mechanics and Materials (Volumes 651-653)

Pages:

103-106

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.651-653.103

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Online since:

September 2014

Authors:

Xiao Yu Ding*, Xing Jin, Peng Zhang

Keywords:

Boron Combustion, HSC Chemistry, Pressure, Temperature, Thermal Equilibrium

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