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| 环形喷嘴预混无焰燃烧的数值模拟(英文) | |
| 引用本文： | 米建春,李鹏飞,郑楚光. 环形喷嘴预混无焰燃烧的数值模拟(英文)[J]. 中国化学工程学报, 2010, 18(1): 10-17. DOI: 10.1016/S1004-9541(08)60316-X |
| 作者姓名： | 米建春 李鹏飞 郑楚光 |
| 作者单位： | |
| 摘 要： | This paper reports an investigation of Computational Fluid Dynamics (CFD) on the influence of injection momentum rate of premixed air and fuel on the flameless Moderate or Intense Low oxygen Dilution (MILD) combustion in a recuperative furnace. Details of the furnace flow velocity, temperature, O2, CO2 and NOx concentrations are provided. Results obtained suggest that the flue gas recirculation plays a vital role in establishing the premixed MILD combustion. It is also revealed that there is a critical mo-mentum rate of the fuel-air mixture below which MILD combustion does not occur. Moreover, the momentum rate appears to have less significant influence on conventional global combustion than on MILD combustion. |
| 关 键 词： | flameless oxidation premixed combustion numerical simulation |
| 收稿时间： | 2009-09-11 |
| 修稿时间： | 2009-9-11 |
Numerical simulation of flameless premixed combustion with an annular nozzle in a recuperative furnace |
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| MI Jianchun,LI Pengfei,ZHENG Chuguang. Numerical simulation of flameless premixed combustion with an annular nozzle in a recuperative furnace[J]. Chinese Journal of Chemical Engineering, 2010, 18(1): 10-17. DOI: 10.1016/S1004-9541(08)60316-X | |
| Authors: | MI Jianchun LI Pengfei ZHENG Chuguang |
| Affiliation: | State Key Laboratory of Turbulence and Complex Systems, Department of Energy &; Resources Engineering, College of Engineer-ing, Peking University, Beijing 100871, China State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China |
| Abstract: | This paper reports an investigation of Computational Fluid Dynamics (CFD) on the influence of injec-tion momentum rate of premixed air and fuel on the flameless Moderate or Intense Low oxygen Dilution (MILD) combustion in a recuperative furnace.Details of the furnace flow velocity, temperature, O_2, CO_2 and NO_x concen-trations are provided.Results obtained suggest that the flue gas recirculation plays a vital role in establishing the premixed MILD combustion.It is also revealed that there is a critical momentum rate of the fuel-air mixture below which MILD combustion does not occur.Moreover, the momentum rate appears to have less significant influence on conventional global combustion than on MILD combustion. |
| Keywords: | flameless oxidation premixed combustion numerical simulation |
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