Numerical investigation on the flow, combustion and NOxemission characteristics in a 10 MW premixed gas burner

作者：Chen, Weibo; Liu, Guixiong

来源：Open Fuels and Energy Science Journal, 2015, 8(1): 1-13.

DOI：10.2174/1876973X01508010001

• Combustion efficiencies
• Combustion intensities
• Combustion qualities
• Combustion temperatures
• Computational Fluid Dynamics software
• Emission characteristics
• Energy
• Numerical investigations

The characteristics of the combustion temperature, flow velocity, CO distribution and NOxemissions of a 10 MW gas burner at different primary to secondary air ratios are numerically studied using computational fluid dynamics software Fluent. The results indicate that the primary to secondary air ratio in gas burner determines the combustion quality through influencing some parameters directly, such as the combustion efficiency, combustion intensity, profile and stability of flame as well as emission of NOx. Then two evaluation indexes of combustion quality are summarized after analyzing the flame structure and characteristics of the flow. The detailed results reported in this paper may provide a useful basis for NOxreduction and premixed gas burner design. Finally some proposals are given to choose the optimal primary to secondary air ratio for a gas burner.

• 出版日期2015
• 单位华南理工大学