Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands | |
He, Juan1,2,4; Li, Xiaosen1,2,3,5 ; Chen, Zhaoyang1,2,3,5; You, Changyu1,2,4; Yan, Kefeng1,2,3; Xia, Zhiming1,2,3; Li, Qingping5
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| 2021-08-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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| ISSN | 0017-9310 |
| Volume | 174Pages:12 |
| Corresponding Author | Chen, Zhaoyang(chenzy@ms.giec.ac.cn) |
| Abstract | The effect of hydrate distribution on the effective thermal conductivity changes of the actual hydrate-bearing sediments is uncertain. To define this effect, in the hydrate-bearing quartz sands, the effective thermal conductivity was measured by the transient hot-wire method, and hydrate distribution was analyzed by the electrical resistance changes. At first, the effective thermal conductivity changes were investigated from gas saturation, gas pressure, water saturation, water pressure, and temperature. Afterward, in three kinds of hydrate formation processes, compared with hydrate distribution, the changing trends of the effective thermal conductivity at five measuring points were analyzed. The results showed that the effective thermal conductivity was increased with decreasing gas saturation and increasing water saturation or water pressure, and impacted slightly by gas pressure and temperature. Moreover, at five measuring points, the non-uniform hydrate distribution caused different changing trends of the effective thermal conductivity during hydrate formation. In the excess-water setting, an increasing trend was only observed at some local measuring point. The decreasing trends at the most of the measuring points were governed by the reduced water distribution. But in the excess-gas setting, at the most of the measuring points, this increasing trend was observed and controlled by the enlarged hydrate distribution. Besides, for some actual sediments in the excess-water setting, hydrate distribution may be not the key factor of the effective thermal conductivity changes, and further studies were required. This research could offer some valuable reference to the thermal properties in the actual sediments. (C) 2021 Elsevier Ltd. All rights reserved. |
| Keyword | Hydrate distribution Water saturation Gas saturation Hydrate formation Electrical resistance Effective thermal conductivity |
| DOI | 10.1016/j.ijheatmasstransfer.2021.121289 |
| WOS Keyword | GAS-PRODUCTION ; METHANE HYDRATE ; HEAT ; DEPRESSURIZATION ; DISSOCIATION ; STIMULATION ; CONVECTION ; SEDIMENTS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51576202] ; National Natural Science Foundation of China[51736009] ; National Key R&D Program of China[2016YFC0304002] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Guangdong Special Support Program[2019BT02L278] |
| WOS Research Area | Thermodynamics ; Engineering ; Mechanics |
| Funding Organization | National Natural Science Foundation of China ; National Key R&D Program of China ; Special Project for Marine Economy Development of Guangdong Province ; Guangdong Special Support Program |
| WOS Subject | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| WOS ID | WOS:000647617700006 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/33105 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Chen, Zhaoyang |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.CNOOC Res Inst, State Key Lab Nat Gas Hydrates, Beijing 100028, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | He, Juan,Li, Xiaosen,Chen, Zhaoyang,et al. Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2021,174:12. |
| APA | He, Juan.,Li, Xiaosen.,Chen, Zhaoyang.,You, Changyu.,Yan, Kefeng.,...&Li, Qingping.(2021).Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,174,12. |
| MLA | He, Juan,et al."Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 174(2021):12. |
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