Journal of University of Science and Technology of China ›› 2010, Vol. 40 ›› Issue (4): 374-379.DOI: 10.3969/j.issn.0253-2778.2010.04.008
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HE Xianzhao
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Abstract: Porous medium was added to the central area of a conventional scale Swiss-roll combustor, and an experiment research was conducted. The starting process of the combustor under different conditions and its lean flammability characteristics were analyzed by monitoring the combustors temperature development and the transformation of the combustion products. The experimental results show that, ignition at the central area takes a shorter time for complete combustion compared with that at the entering point and the temperature distribution of the porous media is more uniform; the porous media properties and that the pre-mixed gas flow rate have great influence on the startup characteristics. Furthermore, when the temperature of the combustor center is between 950 K and 1 200 K, it can burn 13% natural gas/air premixed gas, indicating that porous medium built-in Swiss-roll combustor can expand the fuels lean flammability, and is well applicable to low-calorific gases.
Key words: Swiss-roll combustor, porous media, startup characteristics, combustion characteristics
HE Xianzhao, XIE Hongzhan, LI Yongling, MA Peiyong, LIN Qizhao. Startup and combustible limit of porous medium built-in Swiss-roll burner[J]. Journal of University of Science and Technology of China, 2010, 40(4): 374-379.
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URL: http://just-cn.ustc.edu.cn/EN/10.3969/j.issn.0253-2778.2010.04.008
http://just-cn.ustc.edu.cn/EN/Y2010/V40/I4/374