Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model
Abstract
The heat transfer and fluid transport of supercritical CO2 in enhanced geothermal system (EGS) is studied numerically with local thermal non-equilibrium model, which accounts for the temperature difference between solid matrix and fluid components in porous media and uses two energy equations to describe heat transfer in the solid matrix and in the fluid, respectively. As compared with the previous results of our research group, the effect of local thermal non-equilibrium mainly depends on the volumetric heat transfer coefficient ah, which has a significant effect on the production temperature at reservoir outlet and thermal breakthrough time. The uniformity of volumetric heat transfer coefficient ah has little influence on the thermal breakthrough time, but the temperature difference become more obvious with time after thermal breakthrough with this simulation model. The thermal breakthrough time reduces and the effect of local thermal non-equilibrium becomes significant with decreasing ah.
- Authors:
-
- Tsinghua Univ., Beijing (China)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE; International Science and Technology Cooperation Program of China, Los Angeles, CA (United States); Ministry of Science and Technology of China, Beijing (China); Research Project of Chinese Ministry of Education, Beijing (China)
- OSTI Identifier:
- 1207902
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Energy Procedia (Online)
- Additional Journal Information:
- Journal Name: Energy Procedia (Online); Journal Volume: 63; Journal Issue: C; Journal ID: ISSN 1876-6102
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; enhanced geothermal system; CO2; local thermal non-equlibrium
Citation Formats
Zhang, Le, Luo, Feng, Xu, Ruina, Jiang, Peixue, and Liu, Huihai. Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model. United States: N. p., 2014.
Web. doi:10.1016/j.egypro.2014.11.798.
Zhang, Le, Luo, Feng, Xu, Ruina, Jiang, Peixue, & Liu, Huihai. Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model. United States. https://doi.org/10.1016/j.egypro.2014.11.798
Zhang, Le, Luo, Feng, Xu, Ruina, Jiang, Peixue, and Liu, Huihai. Wed .
"Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model". United States. https://doi.org/10.1016/j.egypro.2014.11.798. https://www.osti.gov/servlets/purl/1207902.
@article{osti_1207902,
title = {Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model},
author = {Zhang, Le and Luo, Feng and Xu, Ruina and Jiang, Peixue and Liu, Huihai},
abstractNote = {The heat transfer and fluid transport of supercritical CO2 in enhanced geothermal system (EGS) is studied numerically with local thermal non-equilibrium model, which accounts for the temperature difference between solid matrix and fluid components in porous media and uses two energy equations to describe heat transfer in the solid matrix and in the fluid, respectively. As compared with the previous results of our research group, the effect of local thermal non-equilibrium mainly depends on the volumetric heat transfer coefficient ah, which has a significant effect on the production temperature at reservoir outlet and thermal breakthrough time. The uniformity of volumetric heat transfer coefficient ah has little influence on the thermal breakthrough time, but the temperature difference become more obvious with time after thermal breakthrough with this simulation model. The thermal breakthrough time reduces and the effect of local thermal non-equilibrium becomes significant with decreasing ah.},
doi = {10.1016/j.egypro.2014.11.798},
journal = {Energy Procedia (Online)},
number = C,
volume = 63,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 2014},
month = {Wed Dec 31 00:00:00 EST 2014}
}
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Works referencing / citing this record:
A review on heat transfer and energy conversion in the enhanced geothermal systems with water/CO 2 as working fluid: A review on heat transfer and energy conversion in EGS using water/CO 2
journal, July 2015
- Xu, Ruina; Zhang, Le; Zhang, Fuzhen
- International Journal of Energy Research, Vol. 39, Issue 13
Geothermal power generation in China: Status and prospects
journal, May 2019
- Zhang, Lei; Chen, Shuai; Zhang, Cun
- Energy Science & Engineering, Vol. 7, Issue 5
Potential of $$\hbox {CO}_{2}$$CO2 based geothermal energy extraction from hot sedimentary and dry rock reservoirs, and enabling carbon geo-sequestration
journal, January 2020
- Singh, Mrityunjay; Tangirala, Sri Kalyan; Chaudhuri, Abhijit
- Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol. 6, Issue 1