Mathematical modelling of NO formation in a power station boiler

被引：10

作者：

Coelho, PJ

Carvalho, MG

机构：

[1] Instituto Superior Técnico, Mechanical Engineering Department, Technical University of Lisbon, 1096, Lisboa Codex, Av. Rovisco Pais

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1995年 / 108卷 / 4-6期

关键词：

combustion in practical systems; furnaces; environmental combustion; NOx;

D O I：

10.1080/00102209508960407

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reports the application of a full three-dimensional mathematical model to a fuel-oil fired power station boiler of the Portuguese Electricity Utility. Special emphasis is placed on the formation of nitric oxide. Models for thermal and fuel-NO formation are included and several variants of the models are employed. The predicted results are compared with measurements. Concentrations of O-2, CO2 and CO are in good agreement with the data whereas the temperature, although in qualitative agreement, is underestimated along the profile crossing the flame region. It is shown that fuel NO is an important source of the total NO formed. Nevertheless, the NO mole fraction is underestimated. Several hypotheses were checked to identify the source of discrepancy and the most probable ones are the temperature underestimation in the flame region and the experimental uncertainties.

引用

页码：363 / 382

页数：20

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