光谱学与光谱分析 |
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The Reconstruction of Two-Dimensional Distributions of Gas Concentration in the Flat Flame Based on Tunable Laser Absorption Spectroscopy |
JIANG Zhi-shen, WANG Fei*, XING Da-wei, XU Ting, YAN Jian-hua, CEN Ke-fa |
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China |
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Abstract The experimental method by using the tunable diode laser absorption spectroscopy combined with the model and algorithm was studied to reconstruct the two-dimensional distribution of gas concentration. The feasibility of the reconstruction program was verified by numerical simulation. A diagnostic system consisting of 24 lasers was built for the measurement of H2O in the methane/air premixed flame. The two-dimensional distribution of H2O concentration in the flame was reconstructed, showing that the reconstruction results reflect the real two-dimensional distribution of H2O concentration in the flame. This diagnostic scheme provides a promising solution for combustion control.
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Received: 2012-03-21
Accepted: 2012-06-20
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Corresponding Authors:
WANG Fei
E-mail: wangfei@zju.edu.cn
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