|本期目录/Table of Contents|

[1]王兆丰,柯巍,马向攀.低温取芯过程热传递方式的数值模拟和实验研究[J].中国安全生产科学技术,2018,14(1):35-41.[doi:10.11731/j.issn.1673-193x.2018.01.006]
　WANG Zhaofeng,KE Wei,MA Xiangpan.Numerical simulation and experimental study on way of heat transfer during low temperature coring process[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(1):35-41.[doi:10.11731/j.issn.1673-193x.2018.01.006]
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低温取芯过程热传递方式的数值模拟和实验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年1期
页码:
35-41
栏目:
学术论著
出版日期:
2018-01-31

文章信息/Info

Title:
Numerical simulation and experimental study on way of heat transfer during low temperature coring process
文章编号:
1673-193X(2018)-01-0035-07
作者:
王兆丰1; 2; 柯巍1; 马向攀1
（1.河南理工大学 安全科学与工程学院，河南 焦作 454000； 2. 煤矿灾害预防与抢险救灾教育部工程研究中心，河南 焦作 454000）
Author(s):
WANG Zhaofeng1; 2;  KE Wei1;  MA Xiangpan1
(1. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China; 2. MOE Engineering Center of Mine Disaster Prevention and Rescue, Jiaozuo Henan 454000, China)
关键词:
低温取芯; 热传递; 数值模拟; 热传导; 煤芯温度
Keywords:
low temperature coring;  heat transfer;  numerical simulation;  heat conduction;  coal core temperature
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2018.01.006
文献标志码:
A
摘要:
为了研究热量在低温取芯过程中传递的方式，以型煤为研究对象，使用自制低温取芯模拟装置，通过实验并结合数值模拟，对低温取芯过程热量传递方式进行研究，进而分析煤芯温度的变化规律。研究结果表明：甲烷的存在降低了煤样的热交换速率，使煤芯温度变化滞后于煤样罐壁温度变化；煤体内部温度分布存在差异，煤样中心轴线不同半径处的圆柱面构成变温过程的等温面，在降温过程，热量沿径向由煤样内部向外部传递，升温过程，热量沿径向由外部向内部传递；低温取芯过程热量传递同时存在3种方式：热传导、热对流，煤体表面与罐体内壁表面之间的热辐射，以热传导方式为主。
Abstract:
In order to study the way of heat transfer in the low temperature coring process, the corresponding experiments were carried out by using the self-made simulation device of low temperature coring with the briquette as the research object and combined with the numerical simulation, thus the change laws of coal core temperature were analyzed. The results showed that the existence of methane decreased the heat exchange rate of coal samples and made the change of coal core temperature lag behind the temperature change of coal sample tank wall. The internal temperature distribution of coal body existed the difference, and the cylindrical surfaces at the positions of different radius from the central axis of coal samples constituted the isothermal surfaces of temperature changing process. During the cooling process, the heat transferred from the interior of coal samples to the outside along the radial direction, and during the heating process, the heat transferred from the outside to the interior along the radial direction. There were three ways of heat transfer in the low temperature coring process at the same time, namely the heat conduction, the heat convection, and the heat radiation between the surface of coal body and the surface of tank internal wall, among which the heat conduction was the main way.

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相似文献/References:

[1]王兆丰,刘勉,韩恩光,等.含瓦斯煤低温取芯过程煤芯温度变化规律实验研究[J].中国安全生产科学技术,2018,14(11):101.[doi:10.11731/j.issn.1673-193x.2018.11.016]
　WANG Zhaofeng,LIU Mian,HAN Enguang,et al.Experimental study on change laws of coal core temperature during low temperature coring process of coal containing gas[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(1):101.[doi:10.11731/j.issn.1673-193x.2018.11.016]

备注/Memo

备注/Memo:
国家自然科学基金项目（51274090）
更新日期/Last Update: 2018-02-12