Acoustic Wave Attenuation Characteristics of Particle-laden Dissipative Media in Furnaces

REN Guohui; JIANG Genshan; LIU Yuechao; XU Weilong

doi:10.19805/j.cnki.jcspe.2025.230626

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Acoustic Wave Attenuation Characteristics of Particle-laden Dissipative Media in Furnaces

更新时间：2026-02-05

- Acoustic Wave Attenuation Characteristics of Particle-laden Dissipative Media in Furnaces
- Chinese Journal of Power Engineering Vol. 45, Issue 1, Pages: 19-27(2025)
- 作者机构：
  
  1. 华北电力大学数理学院,北京,102206
  2. 华北电力大学数理系,河北,保定,071003
  3. 中国舰船研究设计中心,湖北,武汉,430064
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.230626
  CLC： TM621.2
- Online First：15 January 2025，
  
  Published：2025
- 稿件说明：
移动端阅览
任国辉,姜根山,刘月超,许伟龙. 炉内含颗粒耗散介质中的声波衰减特性研究动力工程学报, 2025, 45(1): 19-27 https://doi.

org/10.19805/j.cnki.jcspe.2025.230626
任国辉,姜根山,刘月超,许伟龙. 炉内含颗粒耗散介质中的声波衰减特性研究动力工程学报, 2025, 45(1): 19-27 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.230626.

org/10.19805/j.cnki.jcspe.2025.230626 DOI：

摘要

为了研究含颗粒耗散介质对可听声波的衰减机理

以电站锅炉炉膛为研究对象

在比较边界层厚度与颗粒半径的基础上

给出了不同边界层厚度下的声衰减计算公式。根据边界层理论进行数值分析

讨论了不同边界层厚度下声衰减系数随颗粒体积分数、声频率、颗粒粒径、烟气温度和烟气密度的变化规律。结果表明:薄边界层下的声衰减主要源于烟气媒质吸收和散射衰减

中边界层和厚边界层下的声衰减主要源于颗粒介质表面边界层的能量损失;声衰减系数随着颗粒体积分数、声频率和烟气温度的增大而增大

但随着烟气密度的增大而减小

该研究为粉尘浓度的在线监测提供了理论基础。

Abstract

To investigate the attenuation mechanism of audible acoustic waves by particle-laden dissipative media

the acoustic attenuation equations with different boundary layer thicknesses were derived by comparing the boundary layer thickness with the particle radius when the furnace of utility boiler was considered as the research subject. Numerical analysis was performed according to the boundary layer theory. The variation of acoustic attenuation coefficient with particle volume fraction

acoustic frequency

particle size

flue gas temperature

and flue gas density was elucidated under different boundary layer thicknesses. Results show that the acoustic attenuation within the thin boundary layers is primarily attributed to the absorption and scattering attenuation of the flue gas medium

whereas the acoustic attenuation within the medium and thick boundary layers is predominantly due to energy dissipation in the boundary layer of particulate medium surface. The acoustic attenuation coefficient is positively correlated with particle volume fraction

acoustic frequency

and flue gas temperature

but inversely correlated with flue gas density

which provides a theoretical foundation for the real-time monitoring of dust concentration.

关键词

Keywords

references

LIU Yuechao, JIANG Genshan, YANG Yanfeng, et al. Numerical simulation on acoustic streaming characteristics in boiler tube array[J]. International Journal of Heat and Mass Transfer, 2022, 193: 122834.

XU Weilong, JIANG Genshan, AN Liansuo, et al. Numerical and experimental study of acoustically enhanced heat transfer from a single particle in flue gas[J]. Combustion Science and Technology, 2018, 190(7): 1158-1177.

姜根山, 许伟龙, 安连锁. 声波在电站锅炉含颗粒介质气体中的衰减特性[J]. 动力工程学报, 2017, 37(2): 126-133. JIANG Genshan, XU Weilong, AN Liansuo. Attenuation characteristics of acoustic waves in boiler flue gas containing solid particles[J]. Journal of Chinese Society of Power Engineering, 2017, 37(2): 126-133.

许伟龙, 姜根山, 安连锁, 等. 强声波作用下烟气夹带单颗粒煤粉传热特性的数值研究[J]. 动力工程学报, 2017, 37(10): 788-795. XU Weilong, JIANG Genshan, AN Liansuo, et al. Heat transfer characteristics around single coal particles entrained by flue gas under the action of high intensity acoustic field[J]. Journal of Chinese Society of Power Engineering, 2017, 37(10): 788-795.

姜根山, 许伟龙, 孔倩, 等. 强声波在电站锅炉中传播特性的研究[J]. 动力工程学报, 2016, 36(9): 683-689. JIANG Genshan, XU Weilong, KONG Qian, et al. Propagation characteristics of high-intensity sound in power plant boilers[J]. Journal of Chinese Society of Power Engineering, 2016, 36(9): 683-689.

刘月超, 姜根山, 杨延锋, 等. 驻波声场中圆柱形管道周围颗粒的运动特性[J]. 声学学报, 2023, 48(2): 356-365. LIU Yuechao, JIANG Genshan, YANG Yanfeng, et al. Motion characteristics of particles around the cylindrical tube in a standing wave sound field[J]. Acta Acustica, 2023, 48(2): 356-365.

杨延锋, 姜根山, 刘月超, 等. 声流曳力和声辐射力协同作用下颗粒运动的数值模拟[J]. 动力工程学报, 2020, 40(12): 995-1001. YANG Yanfeng, JIANG Genshan, LIU Yuechao, et al. Numerical simulation on the motion of particles under synergistic action of streaming-induced drag force and acoustic radiation force[J]. Journal of Chinese Society of Power Engineering, 2020, 40(12): 995-1001.

安连锁, 杨文泽, 武国红, 等. 气固两相流介质中声衰减测量方法研究[J]. 声学技术, 2009, 28(1): 6-9. AN Liansuo, YANG Wenze, WU Guohong, et al. A study of acoustical attenuation measurement in gas-solid two-phase flow[J]. Technical Acoustics, 2009, 28(1): 6-9.

杨文泽. 声波在气固两相流介质中传播特性的实验研究[D]. 保定:华北电力大学, 2009.

钱祖文. 浓颗粒介质中的声传播和参数反演[J]. 自然科学进展, 1995, 5(1): 47-54. QIAN Zuwen. Advances in natural science sound propagation and parameter inversion in dense particle media[J]. Progress in Natural Science, 1995, 5(1): 47-54.

刘建斌,吴健. 球形粒子的散射特性分析[J]. 激光杂志, 2004(6): 39-41. LIU Jianbin,WU Jian. Analysis of scattering of spherical particles[J]. Laser Journal, 2004(6): 39-41.

VALVERDE J M. Acoustic streaming in gas-fluidized beds of small particles[J]. Soft Matter, 2013, 9(37): 8792-8814.

关雪丰. 壁面附近声传播规律研究[D]. 郑州: 郑州大学, 2020.

王肖梦. 基于声学的湿蒸汽湿度测量研究[D]. 北京: 华北电力大学, 2021.

ZHANG Guoqiang, YAN Yong, HU Yonghui, et al. On-line size measurement of pneumatically conveyed particles through acoustic emission sensing[J]. Powder Technology, 2019, 353: 195-201.

宋志江, 胡尚锋, 李言钦. 基于定量分析的气固两相流声速模型综述[J]. 应用声学, 2023, 42(1): 182-192. SONG Zhijiang, HU Shangfeng, LI Yanqin. Review on sound speed models in gas-solid two-phase flow based on quantitative comparison[J]. Journal of Applied Acoustics, 2023, 42(1): 182-192.

杜功焕, 朱哲民, 龚秀芬. 声学基础[M]. 南京: 南京大学出版社, 2012.

程建春. 声学原理[M]. 北京: 科学出版社, 2019.

LANDAU L D, LIFSHITZ E M. Fluid mechanics: Landau and Lifshitz: course of theoretical physics, volume 6[M]. New York, USA: Pergamon Press, 1987.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

ZHANG Wenqing

CHEN Eryun

YANG Ailing

XIE Ming

WANG Yuhua

LI Ling

WANG Dongfeng

MENG Yong

Related Institution

School of Energy and Power Engineering, University of Shanghai for Science and Technology

Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering

Key Lab of Intelligent and Green Flexographic Printing, Shanghai Publishing and Printing College

Department of Automation, North China Electric Power University

China Special Equipment Inspection and Research Institute

AI问答

⁰