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Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples
Li DongLiang1,2,3; Du JianWei1,2,3; He Song1,2,3; Liang DeQing1,2; Zhao XiangYong1,2; Yang XiangYang1,2
2012-03-01
Source PublicationSCIENCE CHINA-CHEMISTRY
Volume55Issue:3Pages:373-379
Abstract

The effective thermal conductivities of gas-saturated porous methane hydrates were measured by a single-sided transient plane source (TPS) technique and simulated by a generalized fractal model of porous media that based on self-similarity. The density of porous hydrate, measured by the volume of the sample in the experimental system, was used to evaluate the porosity of methane hydrate samples. The fractal model was based on Sierpinski carpet, a thermal-electrical analogy technique and one-dimensional heat flow assumption. Both the experimental and computational results show the effective thermal conductivity of methane hydrate decreases with the porosity increase. The porosity of 0.3 can reduce the thermal conductivity of the methane hydrate by 25%. By analysis of the experimental data and the simulative result, the optimized thermal conductivity of the zero-porosity methane hydrate is about 0.7 W m(-1) K-1.

SubtypeArticle
KeywordGas Hydrate Thermal Conductivity Fractal Geometry Model Porosity
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11426-011-4459-8
WOS Subject ExtendedChemistry
WOS KeywordGAS HYDRATE ; MEDIA
Indexed BySCI
Language英语
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000302891400008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10186
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Li DongLiang,Du JianWei,He Song,et al. Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples[J]. SCIENCE CHINA-CHEMISTRY,2012,55(3):373-379.
APA Li DongLiang,Du JianWei,He Song,Liang DeQing,Zhao XiangYong,&Yang XiangYang.(2012).Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples.SCIENCE CHINA-CHEMISTRY,55(3),373-379.
MLA Li DongLiang,et al."Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples".SCIENCE CHINA-CHEMISTRY 55.3(2012):373-379.
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