Experimental study of the combustion of natural gas and high-hydrogen content syngases in a radiant porous media burner
| Autor: | Andrés Amell, Alex M. García, Carlos E. Arrieta |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Hydrogen Base (chemistry) Renewable Energy Sustainability and the Environment Chemistry business.industry 020209 energy 05 social sciences Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Condensed Matter Physics Combustion Fuel Technology Chemical engineering Natural gas 0502 economics and business Thermal 0202 electrical engineering electronic engineering information engineering Combustor 050207 economics business Porous medium NOx |
| Zdroj: | International Journal of Hydrogen Energy. 42:12669-12680 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2017.03.078 |
| Popis: | The primary objective of this work is to study the blending of natural gas in equimolar proportions with three high hydrogen content syngases in a radiant porous media burner. We examined the effects of the composition of the syngases, the fuel-to-air ratio and the thermal input on the flame stability, the radiation efficiency and the pollutant emissions (CO and NOx). In this study, we emulated the syngases with H2–CO mixtures, in which the H2 to CO ratio was varied between 1.5 and 3. Additionally, pure natural gas was also used as a base fuel for comparison. The thermal inputs evaluated in this study correspond to two values (300 and 500 kW/m2) found in practical applications. The results indicate that the thermal input and the fuel-to-air ratio significantly influenced the temperature profile in the radiant porous media burner, the radiation efficiency, and the pollutant emissions. On the other hand, contrary to what was observed in other studies for lower hydrogen concentrations, we found that substituting natural gas with high hydrogen content syngases (up to 50%) affected the flame stability limits. Significant differences were also observed for the radiation efficiencies and pollutant emissions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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