TEST STUDY ON IGNITION DISTANCE OF PULVERIZED COAL FLOW IN THE HIGH-TERMPERATURE AIR

NIE Xin1; L Ming1; ZHOU Zhi-jun; ZHOU Jun-hu2; CEN Ke-fa21.College of Mechanical Engineering

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

TEST STUDY ON IGNITION DISTANCE OF PULVERIZED COAL FLOW IN THE HIGH-TERMPERATURE AIR

更新时间：2025-09-28

- TEST STUDY ON IGNITION DISTANCE OF PULVERIZED COAL FLOW IN THE HIGH-TERMPERATURE AIR
- Thermal Power Generation Vol. 39, Issue 3, Pages: 13-18(2010)
- 作者机构：
  
  1. 杭州电子科技大学机械工程学院
  2. 浙江大学能源清洁利用国家重点试验室
  3. 杭州电子科技大学机械工程学院
  4. 浙江大学能源清洁利用国家重点试验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK16
- Published：2010
- 稿件说明：
移动端阅览
NIE Xin1, L Ming1, ZHOU Zhi-jun, et al. TEST STUDY ON IGNITION DISTANCE OF PULVERIZED COAL FLOW IN THE HIGH-TERMPERATURE AIR[J]. Thermal power generation, 2010, 39(3): 13-18.
DOI：

NIE Xin1, L Ming1, ZHOU Zhi-jun, et al. TEST STUDY ON IGNITION DISTANCE OF PULVERIZED COAL FLOW IN THE HIGH-TERMPERATURE AIR[J]. Thermal power generation, 2010, 39(3): 13-18. DOI：

摘要

对煤粉气流在高温空气直接点火燃烧器内部以及其出口区域的煤粉颗粒的着火燃烧过程进行数值模拟

根据所得结果

对各种因素如煤粉浓度、一次风流量、热风温度、热风流量等对煤粉着火距离的影响进行分析。计算结果表明

随着一次风煤粉浓度的减小或一次风流量的增加

煤粉气流在燃烧器内的温度场下降

着火距离增大;一次风流量变化对煤粉着火的影响大于煤粉浓度对着火的影响;着火距离随着热风温度的升高而近似线性缩短

随着热风流量的增大先缩短后还长。

Abstract

The ignition and combustion process of pulverized coal(PC) particles in the PC flow inside the high-temperature air(HTA) direct ignition combustor as well as in outlet area of said combustor

has been simulated.Based on the results obtained from simulation

the effects of working condition parameters

such as the PC concentration

the flow rate of primary air

the temperature of HTA

and the flow rate of HTA etc

have been analyzed.Results of calculation show that:(1)the ignition distance increases as decreasing the temperature field of PC inside the combustor due to decrease of PC concentration in the primary air

or due to increase of the primary air flow rate;(2)the influence of primary air flow rate variation upon the ignition of PC is greater than that of PC concentration;(3)the ignition distance is approximately shortened linearly as the temperature of HTA increases;(4)the ignition distance lengthens firstly and then shortens as flow rate of HTA increases.

关键词

Keywords

references

Views

158

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

TEST STUDY ON CO-GENERATION SCHEME WITH COAL PYROLYSIS COMBUSTION

STUDY ON DETERMINATION METHOD OF HAZARDOUS ELEMENTS IN FUEL COAL AND OTHER SOLID BY-PRODUCTS IN THERMAL POWER PLANTS,THEIR MIGRATION RULES DURING COMBUSTION,AND THEIR INFLUENCE UPON ENVIRONMENT

KEY TECHNOLOGIES FOR OIL-SAVING RETROFIT OF LARGE-SCALE TURBULENT PULVERIZED COAL BURNERS BASED ON NUMERICAL SIMULATION AND APPLICATION STUDY THEREOF

PM_2.5 reduction in furnace during coal combustion

Numerical simulation on NO_x formation characteristics during coalbed methane combustion and the influencing factors

Related Author

LIU Yao-xin1

LI Run-dong1

YANG Tian-hua1

FANG Meng-xiang2

LUO Zhong-yang21.Shenyang Institute of Aeronautical Engineering

DU Xiaoguang1

MA Yun1

WU Yingqing1

Related Institution

Shenyang Institute of Aeronautics and Astronautics

Zhejiang University

Xi'an Thermal Power Research Institute Co., Ltd

Guodian Yongshou Coal Electricity Integration Co., Ltd

State Grid Energy Development Co., Ltd

AI问答

⁰