不同煤粉颗粒辐射模型对600 MW超临界对冲燃烧锅炉辐射传热的影响研究

周东阳; 郑小刚; 张骁; 唐贝; 毕胜山

doi:10.19666/j.rlfd.202507004

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不同煤粉颗粒辐射模型对600 MW超临界对冲燃烧锅炉辐射传热的影响研究

发电技术论坛 | 更新时间：2026-06-12

- 不同煤粉颗粒辐射模型对600 MW超临界对冲燃烧锅炉辐射传热的影响研究
- 不同煤粉颗粒辐射模型对600 MW超临界对冲燃烧锅炉辐射传热的影响研究
- 热力发电 2026年55卷第4期页码：104-115
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院热流科学与工程教育部重点实验室
  2. 西安热工研究院有限公司
  3. 高效灵活煤电及碳捕集利用封存全国重点实验室
- 作者简介：
- 基金信息：
  
  国家重点研发计划项目（2022YFB4100703）;中国华能集团有限公司总部科技项目（HNKJ22-H19）~~
- DOI：10.19666/j.rlfd.202507004
  中图分类号： TM621.2
- 纸质出版：2026
- 稿件说明：
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[1]周东阳,郑小刚,张骁,等.不同煤粉颗粒辐射模型对600 MW超临界对冲燃烧锅炉辐射传热的影响研究[J].热力发电,2026,55(04):104-115.
[1]周东阳,郑小刚,张骁,等.不同煤粉颗粒辐射模型对600 MW超临界对冲燃烧锅炉辐射传热的影响研究[J].热力发电,2026,55(04):104-115. DOI： 10.19666/j.rlfd.202507004.

DOI：10.19666/j.rlfd.202507004.

摘要

在煤粉炉中，传热过程主要以辐射为主导，且随着炉膛尺寸的增大，煤粉颗粒的辐射贡献更为显著。值得注意的是，煤粉颗粒的燃尽率对其辐射特性具有重要影响，但现有多数数值模拟研究往往忽略此效应，将颗粒发射率与散射系数设为常数。为此，以600 MW超临界对冲燃烧锅炉为研究对象，采用计算流体动力学（CFD）方法对比了三类辐射特性模型对辐射传热预测结果的影响，具体包括常数模型（发射率和散射系数恒定）、线性模型（辐射特性随颗粒燃尽率呈线性变化）、普朗克平均系数模型（基于普朗克平均发射率和散射系数）。研究结果表明：相较于同时计入气体与颗粒辐射的情况，忽略颗粒辐射会使炉膛峰值温度高估约300 K。在计入颗粒辐射的前提下，与普朗克平均系数模型相比，常数模型对燃烧器区域螺旋膜式壁传热量的估算偏低约9%，对壁面平均热流密度峰值的估算也偏低约12.5%；而线性模型则会高估该峰值。上述发现可为煤粉燃烧数值模拟中辐射特性模型的合理选取提供参考。

Abstract

In pulverized coal-fired furnaces

the heat transfer process is dominated by radiation. With the increase in furnace size

the radiative contribution of pulverized coal particles becomes increasingly prominent. Notably

the burnout ratio of pulverized coal particles exerts a critical influence on their radiative properties. However

most existing numerical simulation studies tend to overlook this effect and set the particle emissivity and scattering coefficient as constants. To address this issue

this study takes a 600 MW supercritical opposed-fired boiler as the research object and employs computational fluid dynamics(CFD) to analyze the effects of three types of radiative property models on the prediction results of radiative heat transfer. These models include the constant model(emissivity and scattering coefficient remain constant)

the linear model(radiative properties vary linearly with particle burnout ratio)

and the Planck mean coefficient model(based on Planck mean emissivity and scattering coefficient). The results indicate that compared with the scenario where both gas and particle radiation are considered

neglecting particle radiation leads to an overestimation of the furnace peak temperature by approximately 300 K. When particle radiation is taken into account

compared with the Planck mean coefficient model

the constant model underestimates the heat transfer rate of the spiral membrane wall in the burner region by about 9% and the peak value of the average wall heat flux by 12.5%

while the linear model results in an overestimation of the peak value. These findings can provide a reference for the reasonable selection of radiative property models in the numerical simulation of pulverized coal combustion.

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references

吴国江.电站煤粉锅炉炉膛对流换热的分析[J].上海交通大学学报, 1998(1):121-123.WU Guojiang. Analysis of convection heat transfer in pulverized-fuel boiler furnace[J]. Journal of Shanghai Jiaotong University, 1998(1):121-123.

梁栋,贺振宗,毛军逵,等.散射对高温气体-碳黑颗粒混合物辐射传输的影响[J].南京航空航天大学学报,2020, 52(4):588-597.LIANG Dong, HE Zhenzong, MAO Junkui, et al.Influence of scattering effect of soot on radiative transfer in high temperature gas-soot mixtures[J]. Journal of Nanjing University of Aeronautics&Astronautics, 2020,52(4):588-597.

BAEZ-CASTILLO L, ORTIZ-RASCÓN E, BRUCE N C,et al. Merging Mie solutions and the radiative transport equation to measure optical properties of scattering particles in optical phantoms[J]. Applied Optics, 2020, 59:10591-10598.

BUCKIUS R O, HWANG D C. Radiation properties for polydispersions:application to coal[J]. Journal of Heat Transfer, 1980, 102(1):99-103.

JOHANSSON R. Efficient treatment of non-grey radiative properties of particles and gases in modelling of radiative heat transfer in combustion environments[J]. International Journal of Heat and Mass Transfer, 2017, 108:519-528.

MODEST M F, MAZUMDER S. Radiative heat transfer[M]. 4th ed. San Diego:Academic Press, 2022:31-58.

LI B, MAO S, ZHANG H. Laser attenuation and ranging correction in the coal dust environment based on Mie theory and phase ranging principle[J]. Atmosphere, 2023,14(5):845.

LAUBSCHER R, ROUSSEAU P. Numerical investigation on the impact of variable particle radiation properties on the heat transfer in high ash pulverized coal boiler through co-simulation[J]. Energy, 2020, 195:117006.1-117006.10.

张子贤,常珂,陈文娟,等.随燃尽率变化的燃煤锅炉辐射特性研究[J].燃烧科学与技术, 2025, 31(1):94-103.ZHANG Zixian, CHANG Ke, CHEN Wenjuan, et al.Radiation characteristics of coal fired boiler changing with burnout rate[J]. Combustion Science and Technology,2025, 31(1):94-103.

KOCH M, PIELSTICKER S, TARLINSKI D, et al.Coupling radiative properties with detailed char conversion kinetics[J]. Fuel, 2024, 363:130973.

ASKARIZADEH H, PIELSTICKER S, NICOLAI H, et al. Radiation modelling considering burnout-dependent properties and cellwise non-uniform particle distributions in the numerical simulation of pulverised solid fuel combustion[J]. Fuel, 2025, 381:133338.

SINGH K, PATIL K, KUMAR P. Estimation of thermal emission from mixture of CO2 and H2O gases and fly-ash particles[J]. ASME Journal of Heat and Mass Transfer,2025, 147(4):042801.

ZHANG F, YANG H, NING B S, et al. Reduced-scale experimental validation for the inapplicability of Kirchhoff’s law for thermal radiation at ambient temperatures[J]. 2023. DOI:10.2139/ssrn.4492881.

YIN C. On gas and particle radiation in pulverized fuel combustion furnaces[J]. Applied Energy, 2015, 157:554-561.

GUO J, HU F, JIANG X, et al. Effects of gas and particle radiation on IFRF 2.5 MW swirling flame under oxy-fuel combustion[J]. Fuel, 2020, 263:116634.

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