CFD Convective Flow Simulation of the Varying Properties of CO2-H2O Mixtures in Geothermal Systems

Yousefi, S. and Atrens, A.D. and Sauret, E. and Dahari, M. and Hooman, K. (2015) CFD Convective Flow Simulation of the Varying Properties of CO2-H2O Mixtures in Geothermal Systems. Scientific World Journal, 2015. pp. 1-8. ISSN 2356-6140, DOI

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Numerical simulation of a geothermal reservoir, modelled as a bottom-heated square box, filled with water-CO2 mixture is presented in this work. Furthermore, results for two limiting cases of a reservoir filled with either pure water or CO2 are presented. Effects of different parameters including CO2 concentration as well as reservoir pressure and temperature on the overall performance of the system are investigated. It has been noted that, with a fixed reservoir pressure and temperature, any increase in CO2 concentration leads to better performance, that is, stronger convection and higher heat transfer rates. With a fixed CO2 concentration, however, the reservoir pressure and temperature can significantly affect the overall heat transfer and flow rate from the reservoir. Details of such variations are documented and discussed in the present paper.

Item Type: Article
Funders: High Impact Research Grant UM.C/HIR/MOHE/ENG/23 and the University of Malaya, Malaysia
Uncontrolled Keywords: Article; Flow rate; Fluid flow; Geothermal energy; Heat transfer; Power supply; Productivity; Simulation; Thermodynamics
Subjects: Q Science > Q Science (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 21 Sep 2018 01:07
Last Modified: 21 Sep 2018 01:07

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