Methane hydrate has been paid considerable attention on how to exploit it by efficient and economical methods. A computer modeling approach was used to obtain more detail information during the process of methane hydrate decomposition. A comprehensive Users’ Defined Subroutine (UDS) was used in the FLUENT code to model the methane hydrate dissociation by depressurization. The kinetic model and equilibrium condition were contained in the UDS. The new UDS can model the heat and mass transfer during the decomposition process of methane hydrate. The behavior of the methane hydrate decomposition process in both laboratory-scale simulation and micro channels simulation was investigated in this paper. The laboratory-scale simulation results were compared with ones of the laboratory-scale system studied by Masuda et al. to verify the UDS. Evolutions of methane gas, water and hydrate in the cross micro channels were obtained. The phenomenon of water freezing was predicted by comparing the water temperature and freezing temperature. The results also showed that the dissociation process of gas hydrates as well as the water freezing phenomenon occur not only in the interface between hydrate layer and production zone, but also deep in the hydrate zone.
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ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum
June 26–30, 2017
Charlotte, North Carolina, USA
Conference Sponsors:
- Power Division
- Advanced Energy Systems Division
- Solar Energy Division
- Nuclear Engineering Division
ISBN:
978-0-7918-5761-8
PROCEEDINGS PAPER
Numerical Simulation of Methane Hydrate Dissociation in Glass Micro Channels by Depressurization
Xin Wang,
Xin Wang
Dalian University of Technology, Dalian, China
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Weizhong Li,
Weizhong Li
Dalian University of Technology, Dalian, China
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Minghao Yu
Minghao Yu
Dalian University of Technology, Dalian, China
Search for other works by this author on:
Xin Wang
Dalian University of Technology, Dalian, China
Weizhong Li
Dalian University of Technology, Dalian, China
Minghao Yu
Dalian University of Technology, Dalian, China
Paper No:
POWER-ICOPE2017-3447, V002T13A010; 10 pages
Published Online:
September 5, 2017
Citation
Wang, X, Li, W, & Yu, M. "Numerical Simulation of Methane Hydrate Dissociation in Glass Micro Channels by Depressurization." Proceedings of the ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. Charlotte, North Carolina, USA. June 26–30, 2017. V002T13A010. ASME. https://doi.org/10.1115/POWER-ICOPE2017-3447
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