期刊
OPTICS AND LASERS IN ENGINEERING
卷 90, 期 -, 页码 10-18出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2016.09.005
关键词
Tunable diode laser absorption spectroscopy; Combustion diagnostics; Algebraic reconstruction technique; Tomographic reconstruction in two steps
类别
资金
- Young Scientists Fund of the National Natural Science Foundation of China [61205151]
- National Key Scientific Instrument and Equipment Development Project of China [2014YQ060537]
- National 973 Program [2013CB632803]
We present a system for accurate tomographic reconstruction of the combustion temperature and H2O vapor concentration of a flame based on laser absorption measurements, in combination with an innovative two-step algebraic reconstruction technique. A total of 11 collimated laser beams generated from outputs of fiber-coupled diode lasers formed a two-dimensional 5x6 orthogonal beam grids and measured at two H2O absorption transitions (7154.354/7154.353 cm(-1) and 7467.769 cm(-1)). The measurement system was designed on a rotation platform to achieve a two-folder improvement in spatial resolution. Numerical simulation showed that the proposed two-step algebraic reconstruction technique for temperature and concentration, respectively, greatly improved the reconstruction accuracy of species concentration when compared with a traditional calculation. Experimental results demonstrated the good performances of the measurement system and the two-step reconstruction technique for applications such as flame monitoring and combustion diagnosis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据