[1]蔡海峰,熊源泉,周海军,等.双组分高压密相煤粉气力输送数值模拟[J].东南大学学报(自然科学版),2018,48(3):449-454.[doi:10.3969/j.issn.1001-0505.2018.03.011]
 Cai Haifeng,Xiong Yuanquan,Zhou Haijun,et al.Numerical simulation on two-component high pressure dense-phase pneumatic conveying of pulverized coal[J].Journal of Southeast University (Natural Science Edition),2018,48(3):449-454.[doi:10.3969/j.issn.1001-0505.2018.03.011]
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双组分高压密相煤粉气力输送数值模拟()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第3期
页码:
449-454
栏目:
能源与动力工程
出版日期:
2018-05-20

文章信息/Info

Title:
Numerical simulation on two-component high pressure dense-phase pneumatic conveying of pulverized coal
作者:
蔡海峰熊源泉周海军裴宇
东南大学能源热转换及其过程测控教育部重点实验室, 南京 210096
Author(s):
Cai Haifeng Xiong Yuanquan Zhou Haijun Pei Yu
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
双组分 气力输送 数值模拟 压降
Keywords:
two-components pneumatic conveying numerical simulation pressure drop
分类号:
TK121
DOI:
10.3969/j.issn.1001-0505.2018.03.011
摘要:
采用基于Euler/Euler双流体模型的单组分气固两相流动力模型对高压密相气力输送进行了数值模拟和分析.并在该模型的基础上进行修正,建立了双组分气固多相流动力模型.同时应用双组分模型对高压密相气力输送进行数值模拟,并结合单组分的模拟结果进行了对比分析,获得了不同粒径的煤粉颗粒在高压密相气力输送过程中的流动特性.模拟结果发现:2种模型模拟所得的各管段流型相似,均能与试验ECT图结果相吻合,但采用双组分模型能更精确地计算水平管段和垂直管段的压降.与单组分模型相比,双组分模型计算精度提高了3%~4%.
Abstract:
A single component gas-solid two-phase flow model based on Euler/Euler two fluid model was used to simulate and analyze high-pressure dense-phase pneumatic conveying. Based on the model, a two-component gas-solid multiphase flow dynamic model was established. The model was used to simulate and analyze the flow characteristics of two-component particle flow in high pressure dense-phase pneumatic conveying. The flow characteristics of pulverized coal particles with different particle sizes in high pressure dense-phase pneumatic conveying were obtained by comparing and analyzing the simulation results of single component. The simulation results show that the flow patterns obtained by the two models are similar and are in agreement with the experimental electrical capacitance tomography(ECT)diagram, but the two-component model can more accurately calculate the pressure drop of horizontal and vertical pipes. Compared with the single component model, the calculation accuracy of two-component model is increased by 3% to 4%.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2017-11-03.
作者简介: 蔡海峰(1993—),男,硕士生;熊源泉(联系人),男,博士,教授,博士生导师,yqxiong@seu.edu.cn.
基金项目: “十二五”国家科技支撑计划资助项目(2014BAA05B01).
引用本文: 蔡海峰,熊源泉,周海军,等.双组分高压密相煤粉气力输送数值模拟[J].东南大学学报(自然科学版),2018,48(3):449-454. DOI:10.3969/j.issn.1001-0505.2018.03.011.
更新日期/Last Update: 2018-05-20