收稿日期: 2015-03-13
修回日期: 2015-07-07
网络出版日期: 2016-03-15
基金资助
国家自然科学基金(61320106004,61374018)和中国科学院战略性先导科技专项(A类)(XDA07030100)资助
CPFD simulation of gas-solids flow in annular combustion chamber of large-scale circulating fluidized bed
Received date: 2015-03-13
Revised date: 2015-07-07
Online published: 2016-03-15
邱桂芝 , 叶佳敏 , 王海刚 , 王小芳 , 王法军 , 孙运凯 , 聂立 . 大型循环流化床环形炉膛中气固流动特性的CPFD数值模拟[J]. 中国科学院大学学报, 2016 , 33(2) : 218 -222 . DOI: 10.7523/j.issn.2095-6134.2016.02.011
Annular combustion chamber was designed for large-scale circulating fluidized bed(CFB) to improve the secondary air penetration and increase the enclosing heat transfer surface. In this study, the gas-solids flow in a large-scale CFB with annular combustion chamber is investigated based on CPFD simulation. The results show that the pressure distribution and solids flux predicted by the numerical simulation are in good agreement with experimental results. The gas-solids flow behavior and non-uniformity characteristics of gas and solids mass fluxes at combustion chamber outlets are analyzed. The results can be used as valuable information for the optimum design of annular combustion chamber.
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