Experimental and Numerical Investigations of Underground Coal Gasification (UCG) Using Half-teardrop Shape Cavity

Authors

  • Whacharapat Wattanasrirote Department of Mechanical and Mechatronics Engineering, Faculty of Engineering, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand
  • Mohd Faizal Mohideen Batcha Center for Energy and Industrial Environment Studies, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia
  • Arkom Palamanit Energy Technology Program, Department of Specialized Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
  • Maizirwan Mel Department of Chemical Engineering and Sustainability, Kulliyah of Engineering, IIUM, Gombak 53100 Kuala Lumpur, Malaysia
  • Makatar Wae-hayee Energy Technology Research Center, Faculty of Engineering, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand

DOI:

https://doi.org/10.37934/arfmts.101.2.172183

Keywords:

Underground coal gasification (UCG), coal, syngas, gas compositions

Abstract

In this work, the process of Underground Coal Gasification (UCG) was studied experimentally and numerically. The typical cavity of UCG was a half-teardrop shape. The coal samples were collected from Mae Moh coal mine, Thailand. The coal type is mainly lignite. To generate the gasification process, the coal sample was heated in the half-teardrop cavity by injecting partial oxidant, which is air, according to the Equivalent Ratio (ER) of 0.1, 0.2, 0.3, 0.5, and 0.7. The properties of the product gas were measured using a syngas analyser. CFD technique, ANSYS (Fluent), was used to simulate flow characteristics and gasification process in the cavity. The experimental results show that the low heating value (LHV) of syngas peaks at 0.92 MJ/m3 when ER = 0.1, and LHV decreases monotonically as ER increases. The CFD results show that the area of high temperature in the UCG cavity is larger when the ER was greater.

Author Biographies

Whacharapat Wattanasrirote, Department of Mechanical and Mechatronics Engineering, Faculty of Engineering, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand

whacharapat.wattanasrirote@gmail.com

Mohd Faizal Mohideen Batcha, Center for Energy and Industrial Environment Studies, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia

mfaizal@uthm.edu.my

Arkom Palamanit, Energy Technology Program, Department of Specialized Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand

arkom.p@psu.ac.th

Maizirwan Mel, Department of Chemical Engineering and Sustainability, Kulliyah of Engineering, IIUM, Gombak 53100 Kuala Lumpur, Malaysia

maizirwan@iium.edu.my

Makatar Wae-hayee, Energy Technology Research Center, Faculty of Engineering, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand

wmakatar@eng.psu.ac.th

Downloads

Published

2023-01-30

How to Cite

Whacharapat Wattanasrirote, Mohd Faizal Mohideen Batcha, Arkom Palamanit, Maizirwan Mel, & Makatar Wae-hayee. (2023). Experimental and Numerical Investigations of Underground Coal Gasification (UCG) Using Half-teardrop Shape Cavity. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 101(2), 172–183. https://doi.org/10.37934/arfmts.101.2.172183

Issue

Section

Articles

Most read articles by the same author(s)

1 2 3 > >>