Gas-phase modeling of homogeneous boron/oxygen/hydrogen/carbon combustion

✍ Scribed by Louise Pasternack

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 709 KB
• Volume: 90
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(92)90087-6

✦ Synopsis

Boron has practical applications as an advanced fuel in propulsion systems due to its high energy content. The combustion of boron in the presence of hydrocarbon fuels is a complex problem involving heterogeneous particle oxidation followed by gas-phase kinetics of the volatilized boron species. In this study, we have modeled the high-temperature gas-phase combustion chemistry of the B/O/H/C system. We have examined the effects of recent experimental gas-phase kinetic measurements of several of the critical reaction rates and theoretical thermodynamic and transition state calculations on the previous model of boron combustion. Additional reactions that critically affect the combustion efficiency are identified for future experimental and theoretical study. The role of boron oxyhydrides, which are metastable species, is discussed.