中间辐射体对加热炉内传热过程影响的数值模拟

doi:10.12068/j.issn.1005-3026.2021.07.006

东北大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (7): 947-952.DOI: 10.12068/j.issn.1005-3026.2021.07.006

中间辐射体对加热炉内传热过程影响的数值模拟

姜天驰，张卫军，刘石，王鑫

(东北大学冶金学院，辽宁沈阳110819)

修回日期:2020-11-14 接受日期:2020-11-14 发布日期:2021-07-16
通讯作者: 姜天驰
作者简介:姜天驰(1995-)，男，辽宁鞍山人，东北大学博士研究生; 张卫军(1957-)，男，河北滦县人，东北大学教授.
基金资助:
国家自然科学基金联合基金资助项目(U176010061).

Numerical Simulation of Influence of Intermediate Radiator on Heat Transfer Process in Heating Furnace

JIANG Tian-chi， ZHANG Wei-jun， LIU Shi， WANG Xin

School of Metallurgy， Northeastern University， Shenyang 110819， China.

Revised:2020-11-14 Accepted:2020-11-14 Published:2021-07-16
Contact: ZHANG Wei-jun
About author:-
Supported by:
-

摘要/Abstract

摘要： 针对黑体定向辐射技术节能的机理问题，以实验室规模具有中间辐射体的室状加热炉为研究对象，建立了具有中间辐射体的物理模型，以CFD商业计算软件Fluent建立平台计算黑体定向辐射条件下的气体流动、传热、燃烧的三维耦合数学模型，并根据实验结果对数学模型进行验证.研究结果表明:中间辐射体的加入改变了炉体燃烧室内的流动情况及炉墙对钢坯固体辐射的比表面积，分别从气体辐射及固体辐射角度增强了钢坯表面辐射换热强度，燃烧温度降低20K左右，钢坯加热速度提升16.7%，钢坯表面最高温度提升40K.加热效率的提升带来了更好的节能效果.

关键词: 加热炉;定向辐射;数值模拟;多物理场;节能

Abstract: The energy-saving mechanism of blackbody directional radiation technology was investigated. Based on a chamber heating furnace with an intermediate radiator in a steel plant， a physical model with intermediate radiators was established. A transient 3-D mathematical combustion model coupled with heat transfer and fluid flow in the furnace was developed based on the CFD commercial software Fluent to simulate the combustion and temperature distribution in the furnace. The model was verified according to experimental results. The research results show that the installation of the intermediate radiators changes the flow pattern in the combustion chamber of the furnace and the view factor of the furnace wall to the slab for solid radiation， and enhances the radiant heat transfer intensity of the slab surface for both gas radiation and solid radiation. The combustion temperature is reduced by about 20K， the slab heating speed is increased by 16.7%， and the highest temperature of the slab surface is increased by 40K. The improvement of heating efficiency brings a better energy-saving effect.

Key words: heating furnace; directional radiation; numerical simulation; multi-physics field; energy-saving

中图分类号:

TK175

姜天驰，张卫军，刘石，王鑫. 中间辐射体对加热炉内传热过程影响的数值模拟[J]. 东北大学学报（自然科学版）, 2021, 42(7): 947-952.

JIANG Tian-chi， ZHANG Wei-jun， LIU Shi， WANG Xin. Numerical Simulation of Influence of Intermediate Radiator on Heat Transfer Process in Heating Furnace[J]. Journal of Northeastern University(Natural Science), 2021, 42(7): 947-952.

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中间辐射体对加热炉内传热过程影响的数值模拟

Numerical Simulation of Influence of Intermediate Radiator on Heat Transfer Process in Heating Furnace

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