A new model for evaluation of cavity shape and volume during Underground Coal Gasification process

被引：24

作者：

Jowkar, Amin ^{[1
]}

Sereshki, Farhang ^{[1
]}

Najafi, Mehdi ^{[2
]}

机构：

[1] Shahrood Univ Technol, Dept Min Engn Petr & Geophys, Shahrood, Iran

[2] Yazd Univ, Dept Min & Met Engn, Yazd, Iran

来源：

ENERGY | 2018年 / 148卷

关键词：

Underground coal gasification (UCG); Cavity shape; Cavity volume; Computational fluid dynamics (CFD); COMSOL; GROWTH; SIMULATION;

D O I：

10.1016/j.energy.2018.01.188

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Coal seams are converted to syngas by advanced thermo-chemical processes through Underground Coal Gasification (UCG) method. Inability to predict the shape and volume of the underground cavity is an important scientific gap in UCG method which is the main subject of this paper. For this purpose, firstly, a series of equations are introduced to predict the cavity growth dimensions over time. Subsequently, these equations are extended in numerical simulation of the Computational Fluid Dynamics (CFD), incorporating the commercial COMSOL software. According to the simulation, the amount of oxidant necessary to convert a certain amount of coal (in the heterogeneous phase) is calculated. The model results indicated that the shape and volume of cavity could be predicted at the onset of the gasification process. The numerical results agreed well with the field data. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：756 / 765

页数：10

共 50 条

[41] CFD simulation of particle size change during the coal char gasification process using the population balance model with FCMOM [J].

Ghadirian, Emad ;

Abbasian, Javad ;

Arastoopour, Hamid .

POWDER TECHNOLOGY, 2018, 323 :128-138

[42] Numerical Simulation of Temperature Field Evolution and Distribution Range During Movement of Underground Coal Gasification Working Face [J].

Li, Wei ;

Liu, Jian ;

Xin, Lin ;

Li, Wei ;

Fan, Jianguo ;

Wang, Xianmin ;

Ma, Yan ;

Cheng, Weimin ;

Sui, Jiancai ;

Niu, Maofei .

ENERGIES, 2025, 18 (04)

[43] Effect of Fixed and Removable Gas-Injection Patterns on the Expansion of Reaction Zones during Underground Coal Gasification [J].

Wang, Zhangqing ;

Xu, Xiyan ;

Cui, Yong .

ENERGY & FUELS, 2019, 33 (06) :4740-4747

[44] Galerkin Finite Element Based Modeling of One Dimensional Packed Bed Reactor for Underground Coal Gasification (UCG) Process [J].

Irum, Qudsiya ;

Khan, Shahid A. ;

Uppal, Ali Arshad ;

Krivodonova, Lilia .

IEEE ACCESS, 2020, 8 :223130-223139

[45] A comprehensive mathematical model of a serial composite process for biomass and coal Co-gasification [J].

Xiang, Xianan ;

Gong, Guangcai ;

Shen, Yuhang ;

Wang, Chenhua ;

Shi, Ying .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (05) :2603-2619

[46] Simulation of Water Influx and Gasified Gas Transport during Underground Coal Gasification with Controlled Retracting Injection Point Technology [J].

Chen, Yanpeng ;

Wang, Tianduoyi ;

Zhang, Jinhua ;

Zhang, Mengyuan ;

Xue, Junjie ;

Shi, Juntai ;

Kang, Yongshang ;

Li, Shengjie .

ENERGIES, 2022, 15 (11)

[47] Integrated Vacuum Pressure Swing Adsorption and Rectisol process for CO2 capture from Underground Coal Gasification syngas [J].

Wang, Jian ;

Shen, Yuanhui ;

Zhang, Donghui ;

Tang, Zhongli ;

Li, Wenbin .

CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2023, 57 :265-279

[48] A Finite Volume SOFC Model for Coal-Based Integrated Gasification Fuel Cell Systems Analysis [J].

Li, Mu ;

Powers, James D. ;

Brouwer, Jacob .

JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY, 2010, 7 (04) :0410171-04101712

[49] A FINITE VOLUME SOFC MODEL FOR COAL-BASED INTEGRATED GASIFICATION FUEL CELL SYSTEM ANALYSIS [J].

Li, Mu ;

Brouwer, Jacob ;

Powers, James D. ;

Samuelsen, G. Scott .

PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON FUEL CELL SCIENCE, ENGINEERING, AND TECHNOLOGY, 2009, :677-686

[50] Heat-affected zone analysis of high ash coals during ex situ experimental simulation of underground coal gasification [J].

Prabu, V. ;

Jayanti, S. .

FUEL, 2014, 123 :167-174

← 1 2 3 4 5 →