高压高浓度CO<sub>2</sub>烟气辐射换热特性分析与计算

李皓宇; 阎维平; 孙俊威; 董静兰

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高压高浓度CO₂烟气辐射换热特性分析与计算

更新时间：2025-05-08

- 高压高浓度CO₂烟气辐射换热特性分析与计算
- Analysis and Calculation on Radiative Heat Transfer of Flue Gas at High Pressure and Carbon Dioxide Concentration
- 西安交通大学学报 2011年45卷第5期页码：17-22+126
- 作者机构：
  
  华北电力大学能源动力与机械工程学院,河北,保定,071003
- 作者简介：
- 基金信息：
  
  : 2010-09-12. 作者简介: 李皓宇(1985-),男,博士生;阎维平(联系人),男,教授,博士生导师. 基金项目: 国家高技术研究发展计划资助项目(2009AA05Z310);中央高校基本科研业务费专项资金资助项目(10QX38)
- DOI：
  中图分类号： TK224.1
- 网络首发：2011-05-10，
  
  纸质出版：2011
- 稿件说明：
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李皓宇, 阎维平, 孙俊威, 等. 高压高浓度CO₂烟气辐射换热特性分析与计算[J]. 西安交通大学学报, 2011,45(5):17-22+126.

Analysis and Calculation on Radiative Heat Transfer of Flue Gas at High Pressure and Carbon Dioxide Concentration[J]. 2011, 45(5): 17-22+126.
李皓宇, 阎维平, 孙俊威, 等. 高压高浓度CO₂烟气辐射换热特性分析与计算[J]. 西安交通大学学报, 2011,45(5):17-22+126. DOI：

Analysis and Calculation on Radiative Heat Transfer of Flue Gas at High Pressure and Carbon Dioxide Concentration[J]. 2011, 45(5): 17-22+126. DOI：

摘要

针对高压O

/CO

燃烧方式下高浓度CO

和水蒸气混合气体烟气的辐射换热问题

建立了一种新的宽带关联k分布模型.为了验证模型的有效性

以O

/CO

燃烧方式下炉内CO

和水蒸气生成状况为例

采用该模型与离散坐标法相结合的方法计算了不同温度(1 000～2 500 K)和压力(0.1～1.5 MPa)下一维无限大平行平板间混合气体的辐射强度和CO

4.3 μm谱带累积分布函数

并与逐线计算、全光谱关联k分布模型和基于指数的宽带关联k模型的计算结果进行了比较.结果表明:随着压力的增加

所提出的宽带关联k分布模型与逐线计算的结果吻合较好

与文献报导的两个模型相比

不仅计算精度有所提高

而且对混合气体的处理更加简便灵活

因此更适于高压下烟气辐射特性的计算.

Abstract

A new wide band correlated-k distribution model was proposed to calculate the radiative heat transfer of the water vapor and carbon dioxide gas mixture at high pressure and concentration under pressurized O

/CO

combustion mode. The radiation intensity and carbon dioxide 4.3 μm band cumulative distribution function between two cold and black parallel plates were calculated to verify the present model by combination of the present model and the discrete ordinate method at 1 000-2 500 K and 0.1-1.5 MPa in the furnace of a coal-fired boiler. The comparison shows that the results from the present model are more reasonably consistent with those by the line-by-line method with an increase in pressure. Moreover

the acc

uracy of the present model is higher than that of the full-spectrum correlated-k distribution model or the wide band correlated-k distribution model based on the exponent in literature. It seems that this new wide band correlated-k model is suitable to the radiative heat transfer of flue gas at high pressure.

关键词

Keywords

references

阎维平.洁净煤发电技术[M]. 2版. 北京:中国电力出版社,2008:217-222.

JONGSUP H, RANDALL F, MARCO G, et al. Operating pressure dependence of the pressurized oxy-fuel combustion power cycle[J].Energy,2010,35(12):5391-5399.

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尹雪梅,刘林华,李炳熙.水蒸气和CO2混合气体辐射特性宽带k分布模型[J]. 中国电机工程学报,2008,28(5):63-68.

YIN Xuemei, LIU Linhua, LI Bingxi. A wide band k-distribution model for the radiative property of water vapor and carbon dioxide gas mixture[J]. Proceedings of the CSEE,2008, 28(5):63-68.

米翠丽,阎维平.增压富氧燃烧烟气辐射特性宽带关联k模型[J].中国电机工程学报,2010,30(29):62-68.

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HE J, CHENG W L, BUCKIUS R O. Wide band cumulative absorption coefficient distribution model for overlapping absorption in H2O and CO2 mixtures [J]. International Journal of Heat and Mass Transfer, 2008, 51(5): 1115-1129.

JING H, RICHARD O, BUCKIUS R O. Improved band parameters for a simplified wide band cumulative absorption coefficient distribution model for H2O and CO2[J]. International Journal of Heat and Mass Transfer, 2008, 51(5): 1467-1474.

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高压高浓度CO2烟气辐射换热特性分析与计算

Analysis and Calculation on Radiative Heat Transfer of Flue Gas at High Pressure and Carbon Dioxide Concentration

DOI：

摘要

Abstract

关键词

Keywords

references

高压高浓度CO₂烟气辐射换热特性分析与计算