文献类型：期刊文献

英文题名：Three-Dimensional Temperature Distribution of Impinging Flames in an Opposed Multiburner Gasifier

作者：Gong, Yan[1];Guo, Qinghua[1];Liang, Qinfeng[1];Zhou, Zhijie[1];Yu, Guangsuo[1]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R China

年份：2012

卷号：51

期号：22

起止页码：7828

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20122415106604);WOS:【SCI-EXPANDED(收录号:WOS:000304837500044)】；

基金：This work is financially supported by the National Nature Science Foundation of China (20876048) and the National Key State Basic Research Development Program of China (973 Program, 2010CB227004).

语种：英文

外文关键词：Refractory materials - Gasification - Charge coupled devices - Image reconstruction - Thermocouples

摘要：Based on the bench-scale opposed multiburner (OMB) gasifier, a new combination of the optical sectioning tomography (OST) and two-color method has been proposed and applied to reconstruct the three-dimensional (3-D) temperature distribution of the gasifier by employing a single charge-coupled device (CCD) camera installed on the top of the gasifier. The reconstruction method is first applied in diesel gasification and the reconstructed results are validated by calibrated thermocouples and a side imaging system; thus the 3-D temperature distribution of coal-water slurry (CWS) gasification is reconstructed. The results show that the temperature distribution is more spatially homogeneous and the average temperature is higher with blurry contours of flame than that of diesel. The overall temperature of the gasifier rises with the increase of oxygen to carbon ratio, and the high temperature region which ranges from 1700 to 2200 K remains in the axis of the gasifier steadily and remains a safe distance from the refractory wall, which makes the temperature of the refractory wall below 1550 K and makes the participating medium maintain a stable condition for gasification.