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Coupled hydro-thermal analysis of underground coal gasification reactor cool down for subsequent CO₂ storage

Lookup NU author(s): Dr Vasilis SarhosisORCiD

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Abstract

The present study investigates the time dependency of a UCG (Underground Coal Gasification) reactor cool down process by comparing natural cool down with forced cooling driven by water flushing. The convective heat transport out of the UCG reactor was calculated using an analytical approach coupled to a numerical heat flow model of the geology surrounding the UCG reactor. Our results show that forced cooling by water flushing at flow velocities of 1 m/s can decrease the required time to retain initial in-situ temperature conditions by a factor of more than 300.

Publication metadata

Author(s): Sarhosis V, Yang D, Sheng Y, Kempka T

Publication type: Article

Publication status: Published

Journal: Energy Procedia

Year: 2013

Volume: 40

Pages: 428–436

Print publication date: 01/01/2013

Online publication date: 06/09/2013

Date deposited: 17/02/2016

ISSN (electronic): 1876-6102

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.egypro.2013.08.049

DOI: 10.1016/j.egypro.2013.08.049

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