The oxidation of solid graphite using a 5-kW CO2 laser
| Autor: | E. Saatdjian, P. Caminat |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
General Chemical Engineering
Energy balance General Physics and Astronomy Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Combustion Laser law.invention Fuel Technology Flux (metallurgy) chemistry law Heat transfer Physical chemistry Graphite Laser power scaling Composite material Carbon |
| Zdroj: | Combustion and Flame. 86:249-257 |
| ISSN: | 0010-2180 |
| DOI: | 10.1016/0010-2180(91)90105-k |
| Popis: | The combustion of solid graphite was studied experimentally using a 5-kW CO 2 laser to heat an 8-cm-diameter 4-cm-high cylindrical samples to temperatures of the order of 1200°C. The absence of volatile matter and the large size of the samples used here are main obstacles to the combustion of these very pure graphites. A simple model which takes into account the main heat transfer modes here as well as mass loss was developed and its validity checked against the obtained data. The experimental parameters that were varied were the laser power and flux, the aerodynamics and composition of the oxidizer flow. The contribution of each heat transfer mode to the total energy balance is followed during each run. Under certain conditions, the sample continues to burn even though the laser has been shut off. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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