干湿两种烟气再循环方式下富氧燃烧循环流化床锅炉烟气辐射特性分析

被引：20

作者：

高大明

陈鸿伟

杨建蒙

谷俊杰

机构：

[1] 华北电力大学动力工程系

来源：

中国电机工程学报 | 2019年 / 39卷 / 04期

关键词：

富氧燃烧; 循环流化床锅炉; 烟气辐射; 宽带k累积分布模型; 烟气再循环;

D O I：

暂无

中图分类号：

X773 [电力工业];

学科分类号：

080707 [能源环境工程];

摘要：

在考虑谱线压力增宽效应的基础上,建立基于谱带通用无量纲吸收系数累积分布函数的辐射性气体宽带k累积分布模型,依据最新的气体辐射特性高分辨率光谱数据库,基于多项式对H2O和CO2不同温度下的谱带特征参数计算式进行拟合;通过对H2O和CO2混合气体中存在重叠的各谱带进行合并处理,建立适用于谱带通用无量纲吸收系数累积分布函数的各合并谱带等效谱带特征参数计算模型,可以直接对高浓度H2O和CO2混合气体重叠谱带的谱带吸收系数进行计算。在此基础上,结合富氧燃烧循环流化床锅炉不同烟气再循环方式下烟气中H2O和CO2动态计算模型,分析干、湿烟气再循环方式下烟气再循环过程、炉膛温度变化和氧气浓度变化对烟气辐射特性的影响。

引用

页码：1086 / 1097

页数：12

共 14 条

[1]

Radiative heat transfer in strongly forward scattering media of circulating fluidized bed combustors.[J].Cihan Ates;Guzide Ozen;Nevin Selçuk;Gorkem Kulah.Journal of Quantitative Spectroscopy and Radiative Transfer.2016,

[2]

A review of oxy-fuel combustion in fluidized bed reactors [J].

Mathekga, H. I. ;

Oboirien, B. O. ;

North, B. C. .

INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2016, 40 (07) :878-902

[3]

Radiative Heat Transfer in the Dilute Zone of an Air-Fired Circulating Fluidized Bed Combustor and Its Oxy-Fired Retrofit [J].

Ozen, G. ;

Aydin, F. ;

Selcuk, N. .

COMBUSTION SCIENCE AND TECHNOLOGY, 2016, 188 (4-5) :730-744

[4]

Heat transfer in a 4–MW th circulating fluidized bed furnace operated under oxy-fired and air-fired conditions: Modeling and measurements.[J].Sadegh Seddighi Khavidak;David Pallarès;Fredrik Normann;Filip Johnsson;Ville Ylä-Outinen.International Journal of Greenhouse Gas Control.2015,

[5]

Validation of HITEMP-2010 for carbon dioxide and water vapour at high temperatures and atmospheric pressures in 450–7600<ce:hsp sp="0.25"/>cm −1 spectral range.[J].Michael Alberti;Roman Weber;Marco Mancini;Alexander Fateev;Sønnik Clausen.Journal of Quantitative Spectroscopy and Radiative Transfer.2015,

[6]

CDSD-296; high resolution carbon dioxide spectroscopic databank: Version for atmospheric applications.[J].S.A. Tashkun;V.I. Perevalov;R.R. Gamache;J. Lamouroux.Journal of Quantitative Spectroscopy and Radiative Transfer.2015,

[7]

Coupling of a radiative heat transfer model and a three-dimensional combustion model for a circulating fluidized bed furnace.[J].Mohammad Hadi Bordbar;Kari Myöhänen;Timo Hyppänen.Applied Thermal Engineering.2015,

[8]

Oxy-fuel combustion in circulating fluidized bed boilers.[J].Bo Leckner;Alberto Gómez-Barea.Applied Energy.2014,

[9]

Heat transfer in the external heat exchanger of oxy-fuel fluidized bed boilers [J].