Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Measuring and modeling thermal conductivity of gas hydrate-bearing sand | |
Huang, DZ; Fan, SS | |
2005-01-25 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH |
卷号 | 110期号:B1 |
摘要 | Effective thermal conductivity (ETC) of both tetrahydrofuran (THF) and methane hydrate-bearing sandy porous media was measured by the Hot Disk Thermal Constant Analyser. Thermal conductivity of methane hydrate is 0.575 W m(-1) K-1 at 0degreesC and 6.6 MPa (methane gas pressure), which is close to THF hydrate's 0.51 W m(-1) K-1 at 0degreesC and 0.1 MPa (atmosphere pressure). However, the measured 1 W m(-1) K-1 ETC of methane hydrate-bearing sand is significantly lower than that of THF hydrate-bearing sand at similar to2 W m(-1) K-1. This is because the methane hydrate formed with a sodium dodecyl sulfate (SDS) solution in sand at our laboratory has a "wall creeping'' growth characteristic and consequently a large part of the pores were filled with methane free gas. ETCs of sand containing gas hydrates were also calculated using a renormalization method. The process involves sample partitioning, labeling, initial value assignments, and renormalization calculations. A Monte Carlo analysis was applied to sample laboratory-scale gas hydrate-bearing sand assemblies. We found that the renormalization modeling results agreed well with measured ETCs when each photo of a 1.3 mm x 1.3 mm subsample was divided into 16 or more blocks. |
文章类型 | Article |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.1029/2004JB003314 |
研究领域[WOS] | Geochemistry & Geophysics |
关键词[WOS] | METHANE HYDRATE ; THERMOELECTRIC-MATERIALS ; ENERGY RESOURCE ; HEAT-CAPACITY ; CLATHRATE ; SEDIMENTS ; DIFFUSIVITY ; MIXTURES |
收录类别 | SCI |
语种 | 英语 |
WOS类目 | Geochemistry & Geophysics |
WOS记录号 | WOS:000226686500004 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/10221 |
专题 | 中国科学院广州能源研究所 |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Anhua 230026, Peoples R China |
推荐引用方式 GB/T 7714 | Huang, DZ,Fan, SS. Measuring and modeling thermal conductivity of gas hydrate-bearing sand[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2005,110(B1). |
APA | Huang, DZ,&Fan, SS.(2005).Measuring and modeling thermal conductivity of gas hydrate-bearing sand.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,110(B1). |
MLA | Huang, DZ,et al."Measuring and modeling thermal conductivity of gas hydrate-bearing sand".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 110.B1(2005). |
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