| 利用火焰图像同时重建温度场和浓度场的试验研究 |
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| 引用本文： | 王飞,马增益,严建华,池涌,倪明江,岑可法. 利用火焰图像同时重建温度场和浓度场的试验研究[J]. 动力工程, 2003, 23(3): 2404-2408 |
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| 作者姓名： | 王飞 马增益 严建华 池涌 倪明江 岑可法 |
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| 作者单位： | 浙江大学,热能工程研究所,能源清洁利用与环境工程教育部重点实验室,杭州,310027 |
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| 基金项目： | 国家自然科学基金 5 0 10 60 15，教育部高等学校骨干教师资助计划资助 G70 0 17 |
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| 摘 要： | 煤粉火焰图像是火焰辐射经过发射、衰减和散射等过程后到达摄像机靶面的投影。火焰发射出的辐射强度与火焰自身的温度密切相关，而辐射强度的衰减则取决于弥散介质的特性和浓度。该文首先研究了辐射衰减系数与粒子浓度场的关系，提出了对温度场和浓度场进行同时重建的控制方程。最后，在小型燥粉炉上进行断面温度场和浓度场的重建试验。图ll参l2
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| 关 键 词： | 煤粉 火焰图像 温度场 浓度场 |
| 文章编号： | 1000-6761(2003)03-2404-05 |
Experimental Study of Temperature and Concentration Distribution Measurement Based on Flame Image |
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| WANG Fei,MA Zeng yi,YAN Jan hua,CHI Yong,NI Ming jiang,CEN Ke fa. Experimental Study of Temperature and Concentration Distribution Measurement Based on Flame Image[J]. Power Engineering, 2003, 23(3): 2404-2408 |
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| Authors: | WANG Fei MA Zeng yi YAN Jan hua CHI Yong NI Ming jiang CEN Ke fa |
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| Abstract: | The image is the project of flame on the camera target, after passing through the emission, absorption and scattering. The radiative intensity emitted by the flame is determined by the temperature, while the extinction of the radiation has relation with the properties and the concentration of the diffuse media. This paper studies the link between radiative extinctive coefficient and the particles concentration, the method and algorithm to reconstruct the temperature and the concentration distribution synchronously have been advanced. The tests on a small scale pulverized coal furnace are reviewed. |
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| Keywords: | flame image temperature distribution field particle concentration field |
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