DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Proceedings papers >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1380

Title: Laboratory studies on combustion cavity growth in lignite coal blocks in the context of underground coal gasification
Authors: DAGGUPATI, S
MANDAPATI, RN
MAHAJANI, SM
GANESH, A
MATHUR, DK
SHARMA, RK
AGHALAYAM, P
Keywords: numerical-simulation
model
ucg
Issue Date: 2010
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: ENERGY,35(6)2374-2386
Abstract: Cavity formation is an important phenomenon in the underground coal gasification (UCG) process. In the early stages of cavity formation, only the combustion reaction is performed in order to stabilize the temperature field. In the present work, we study the formation of the combustion cavity and the effect of various design and operating parameters such as the distance between the wells, feed flow rate and operation time, on its evolution. This paper presents details of laboratory-scale experiments that demonstrate the shape and size of the combustion cavity, and their dependence on various parameters. Empirical correlations for the cavity volume and dimensions in various directions are developed, which indicate the strong effects of mass transport. Results from computational fluid dynamics (CFD), which map the velocity profiles in the cavity, support the experimental observations. (C) 2010 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.energy.2010.02.015
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14557
http://hdl.handle.net/100/1380
ISSN: 0360-5442
Appears in Collections:Proceedings papers

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback