INFLUENCE OF INCIDENCE ANGLE CHANGE IN GASIFICATION NOZZLE UPON FLOW FIELD AND CONCENTRATION FIELD IN THE FURNACE

ZHOU Zhijun; HU Yingchao; YANG Jian; ZHOU Junhu; LIU Jianzhong; CEN Kefa State-level Key Laboratory of Clean Energy Utilization

English

您当前的位置：

首页 >

文章列表页 >

INFLUENCE OF INCIDENCE ANGLE CHANGE IN GASIFICATION NOZZLE UPON FLOW FIELD AND CONCENTRATION FIELD IN THE FURNACE

Thermal Power Generation Vol. 40, Issue 7, Pages: 32-36(2011)

更新时间：2025-09-28

- INFLUENCE OF INCIDENCE ANGLE CHANGE IN GASIFICATION NOZZLE UPON FLOW FIELD AND CONCENTRATION FIELD IN THE FURNACE
- 作者机构：
  
  1. 浙江大学能源清洁利用国家重点实验室
  2. 浙江大学能源清洁利用国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ545
- Published：2011
- 稿件说明：
移动端阅览
ZHOU Zhijun, HU Yingchao, YANG Jian, et al. INFLUENCE OF INCIDENCE ANGLE CHANGE IN GASIFICATION NOZZLE UPON FLOW FIELD AND CONCENTRATION FIELD IN THE FURNACE[J]. Thermal Power Generation, 2011, 40(7): 32-36.
DOI：

ZHOU Zhijun, HU Yingchao, YANG Jian, et al. INFLUENCE OF INCIDENCE ANGLE CHANGE IN GASIFICATION NOZZLE UPON FLOW FIELD AND CONCENTRATION FIELD IN THE FURNACE[J]. Thermal Power Generation, 2011, 40(7): 32-36. DOI：

摘要

在高2 680mm、直径440mm的煤气化冷态试验炉内

对最外层通道入射角α分别为30°和32°的新型5通道气化喷嘴进行了流场和示踪气体CO浓度分布情况的试验

分析了两种入射角对流场分布、回流量变化及示踪气体浓度分布的影响规律。结果显示:入射角α=32°的喷嘴产生的回流区及回流量大于入射角α=30°的喷嘴产生的回流区及回流量;入射角不同对气体浓度分布影响较小

2种喷嘴均在高径比大于2.07时进入充分混合区域;入射角α=32°的喷嘴比入射角α=30°的喷嘴更有利于气化过程的有效进行。

Abstract

In a cold-state test furnace with height of 2680 mm and diameter of 440 mm

a test of flow field and concentration distribution of tracer gas CO has been carried out for two gasification nozzles of new type with five channels and in the outer most channel the incidence angle α is 30° and 32 ° respectively

the regularity of incidence angle's influence upon the flow field distribution

the change of back flow rate

and the concentration distribution of tracer gas being analysed.Results show that the back flow region and the back flow rate produced by the nozzle with incidence angle α=32° all are greater than that produced by nozzle with incidence angle α=30°;the influence of different incidence angles upon the gas concentration distribution is smaller

the tow kinds of nozzle all entered into fully mixed region at height/diameter ratio is equal to 2.07.The nozzle with incidence angle of 32° is more advantageous for effectively carrying out the gasification process.

关键词

Keywords

references

Views

172

下载量

CSCD

Alert me when the article has been cited

提交

Publicity Resources

ANALYSIS OF NATURAL VENTILATION DESIGN FOR MAIN BUILDING IN THERMAL POWER PLANT

CFD SIMULATION STUDY ON FLOW FIELD INSIDE THE SOLAR POWER CHIMNEY

A SUMMARY AND PROSPECTS OF STUDY ON START-UP PROCESS FOR GAS TURBINES

APPLICATION OF TECHNOLOGY FOR CHANGING 410 t/h OIL-FIRED BOILER TO BURN COAL-WATER SLURRY IN MAOMING THERMAL POWER PLANT

A NEW METHOD FOR DETERMINING THE CRITICAL SHEAR RATE IN RHEDLOGICAL MODEL OF COAL-WATER SLURRY

Related Author

GUAN Yan-ling

LI An-gui

ZHOU Xin-ping

YANG Jia-kuan

XIAO Bo

MA Wen-tong

YU Nan-hua

SU Ming

Related Institution

Xi'an University of Architecture and Technology

Huazhong University of Science and Technology

Shanghai Jiao Tong University

Maoming Thermal Power Plant

AI问答

⁰