Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples

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	Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples
	2012-01-01
Source Publication	SCIENCE CHINA-CHEMISTRY
ISSN	1674-7291
Volume	55 Issue:3 Pages:373
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.
Keyword	GAS HYDRATE MEDIA gas hydrate thermal conductivity fractal geometry model porosity
Language	英语
Funding Project	[National Basic Research Program of China] ; [National Natural Science Foundation of China] ; [Guangdong Province Science and Technology Program]
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/29086
Affiliation	1.中国科学院广州能源研究所 2.中国科学院 3.中国科学院大学
Recommended Citation GB/T 7714	. Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples[J]. SCIENCE CHINA-CHEMISTRY,2012,55(3):373.
APA	(2012).Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples.SCIENCE CHINA-CHEMISTRY,55(3),373.
MLA	"Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples".SCIENCE CHINA-CHEMISTRY 55.3(2012):373.

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