Numerical study on NO mechanism during high temperature air combustion of natural gas

被引：1

作者：

Su, Yaxin ^{[1
]}

Chen, Cuiwu ^{[1
]}

机构：

[1] Donghua Univ, Sch Environm Sci & Engn, Shanghai 201620, Peoples R China

来源：

DIGITAL MANUFACTURING & AUTOMATION III, PTS 1 AND 2 | 2012年 / 190-191卷

关键词：

High temperature air combustion; industrial furnace; nitric oxide model; numerical simulation; FLAMELESS OXIDATION; SIMULATION; EMISSIONS;

D O I：

10.4028/www.scientific.net/AMM.190-191.609

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A full nitric oxide mechanism including thermal NO, prompt NO, N2O intermediate model and NO reduction model through rebuming was used to calculate the NO formation during high temperature air combustion of natural gas in industrial furnace. The turbulent transportation was simulated by Reynolds stress model (RSM) and a modified Eddy-Break-Up (EBU) combustion model was applied to model the combustion process. A three-step reaction scheme of the natural gas combustion reaction was considered. Experimental data from published literature was adopted to validate the present models. Numerical results showed that thermal NO formation mechanism and rebuming NO reduction mechanism were the dominant NO models. Rebuming NO reduction could not be ignored. Prompt NO gave a small contribution to NO emission and the N2O intermediate model for NO formation was of little importance.

引用

页码：609 / 614

页数：6