Heat transfer analysis of methane hydrate dissociation by depressurization and thermal stimulation
文献类型：期刊论文
| 作者 | Wan, Qing-Cui1,2; Si, Hu1,2; Li, Bo1,2; Li, Gang3
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| 刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
 |
| 出版日期 | 2018-12-01 |
| 卷号 | 127页码:206-217 |
| 关键词 | Gas hydrate Heat transfer Depressurization Thermal stimulation Energy efficiency |
| ISSN号 | 0017-9310 |
| DOI | 10.1016/j.ijheatmasstransfer.2018.07.016 |
| 通讯作者 | Si, Hu(sihu@cqu.edu.cn) |
| 英文摘要 | The dissociation of natural gas hydrate is an endothermic reaction closely related with the heat transfer characteristics in porous media. This study mainly focuses on the three-dimensional heat transfer behaviors during hydrate dissociation by depressurization and thermal stimulation based on the experiments in a Cuboid Pressure Vessel (CPV). The evolution of various heat flows (including the heat transferred from the boundaries Q(B), the injected heat from the well Q(inj), the heat consumed by the hydrate dissociation Q(H), and the sensible heat change of the deposit Q(S)) and their relationships during hydrate dissociation are obtained through numerical simulation. The heat loss Q(L) during gas production is calculated and analyzed for the first time. It is found that the hydrate dissociation is mainly promoted by the driving forces of depressurization (F-dep) and thermal stimulation (F-ths), which are dependent on the heat flows of Q(B) and Q(inj), respectively. The effect of F-dep, will be weakened under higher F-ths. Part of Q(inj) and Q(B) are absorbed and stored as Q(S) by the porous media and the fluids of the deposit. Once Q(B) becomes negative, it starts to make contribution to the heat loss instead of the hydrate dissociation, resulting in a sharp increase of Q(L). In addition, a proper thermal stimulation rate q and production pressure P-W, should be selected so that the hydrate dissociation rate could be significantly enhanced while the thermal efficiency and energy efficiency are still favorable when compared with using single depressurization. (C) 2018 Elsevier Ltd. All rights reserved. |
| WOS关键词 | INDUCED GAS-PRODUCTION ; PILOT-SCALE ; NATURAL-GAS ; INJECTION ; ENERGY ; CO2 ; DECOMPOSITION ; SIMULATION ; SEPARATION ; DEPOSITS |
| 资助项目 | National Natural Science Foundation of China[51506016] ; Chongqing Foundation and Advanced Research Project[cstc2016jcyjA0034] |
| WOS研究方向 | Thermodynamics ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000451366000021 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Chongqing Foundation and Advanced Research Project |
| 源URL | [http://ir.giec.ac.cn/handle/344007/24271]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Si, Hu |
| 作者单位 | 1.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400094, Peoples R China 2.Chongqing Univ, Coll Resources & Environm Sci, Chongqing 400094, Peoples R China 3.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Qing-Cui,Si, Hu,Li, Bo,et al. Heat transfer analysis of methane hydrate dissociation by depressurization and thermal stimulation[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2018,127:206-217. |
| APA | Wan, Qing-Cui,Si, Hu,Li, Bo,&Li, Gang.(2018).Heat transfer analysis of methane hydrate dissociation by depressurization and thermal stimulation.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,127,206-217. |
| MLA | Wan, Qing-Cui,et al."Heat transfer analysis of methane hydrate dissociation by depressurization and thermal stimulation".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 127(2018):206-217. |
入库方式： OAI收割
来源：广州能源研究所
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