Abstract
This work is aimed to quantify burn times and temperatures of boron particles as a function of their size. 95% pure amorphous boron powder with particles ranging from 0.04 to 40 μm was injected axially into premixed air-acetylene flames with varying equivalence ratios. The particle size distributions were determined using scanning electron microscopy images of captured particles that passed through the injection system in the absence of the flame. Particle sizes were corrected accounting for the fractal dimensions of the observed agglomerates. Results indicated that the burn time of boron particles, tb is correlated with the particle diameter, d as tb ∼ dn with n≈0.75. The combustion temperature exceeds 2600 K and is not affected by the particle size.
Original language | English (US) |
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State | Published - 2016 |
Event | 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016 - Princeton, United States Duration: Mar 13 2016 → Mar 16 2016 |
Other
Other | 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016 |
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Country/Territory | United States |
City | Princeton |
Period | 3/13/16 → 3/16/16 |
All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Physical and Theoretical Chemistry
- General Chemical Engineering