The Effect of Initial Conditions on the Laminar Burning Characteristics of Natural Gas Diluted by CO2
| Autor: | Peng Wang, Zinong Zuo, Dongjian Zeng, Kun Liang, Zhiqiang Han, Zhennan Zhu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Control and Optimization
Materials science 020209 energy Energy Engineering and Power Technology Thermodynamics 02 engineering and technology Kinetic energy lcsh:Technology Diluent Instability concentration of radicals Physics::Fluid Dynamics 020401 chemical engineering Natural gas 0202 electrical engineering electronic engineering information engineering Physics::Chemical Physics 0204 chemical engineering Electrical and Electronic Engineering diluent gas Engineering (miscellaneous) lcsh:T Renewable Energy Sustainability and the Environment business.industry Laminar flow Dilution natural gas Volume (thermodynamics) laminar burning velocity business flame instability Energy (miscellaneous) |
| Zdroj: | Energies Volume 12 Issue 15 Energies, Vol 12, Iss 15, p 2892 (2019) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en12152892 |
| Popis: | The initial conditions such as temperature, pressure and dilution rate can have an effect on the laminar burning velocity of natural gas. It is acknowledged that there is an equivalent effect on the laminar burning velocity between any two initial conditions. The effects of initial temperatures (323 K&ndash 423 K), initial pressures (0.1 MPa&ndash 0.3 MPa) and dilution rate (0&ndash 16%, CO2 as diluent gas) on the laminar burning velocity and the flame instability were investigated at a series of equivalence ratios (0.7&ndash 1.2) in a constant volume chamber. A chemical kinetic simulation was also conducted to calculate the laminar burning velocity and essential radicals&rsquo concentrations under the same initial conditions. The results show that the laminar burning velocity of natural gas increases with initial temperature but decreases with initial pressure and dilution rate. The maximum concentrations of H, O and OH increase with initial temperature but decrease with initial pressure and dilution rate. Laminar burning velocity is highly correlated with the sum of the maximum concentration of H and OH. |
| Databáze: | OpenAIRE |
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