文献类型：期刊文献

英文题名：Numerical simulation of flow, combustion and NO emission of a fuel-staged industrial gas burner

作者：Liu, Bo[1];Bao, Binbin[1];Wang, Yuanhua[1];Xu, Hong[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：90

期号：3

起止页码：441

外文期刊名：JOURNAL OF THE ENERGY INSTITUTE

收录：;EI(收录号：20171703601873);WOS:【SCI-EXPANDED(收录号:WOS:000401394400011)】；

语种：英文

外文关键词：Numerical simulation; Fuel-staged burner; Chemical flame height; NO emission

摘要：Three dimensional numerical simulations were performed to optimize the geometrical parameters of a fuel-staged low NOx gas burner. The effect of the primary gas injection angle (alpha), the staged gas injection angle (beta) and position of the staged gun (H) on flame size and NO emission was analyzed based on the contours of temperature, stoichiometric mixture fraction, rate of thermal NO and the global NO emission. The predicted results were validated with the experimental measurements of the full scale burner (1.4 MW) at different excess air factors. The results indicate that H is the most important factors affecting the NO emission, followed by beta and alpha respectively. The chemical flame heights increase with the increase of beta and the decrease of H but the effect of alpha is negligible. Finally, alpha = 70, beta = 30 and H = 36 mm are recommended as the optimized results. (C) 2016 Energy Institute. Published by Elsevier Ltd. All rights reserved.