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

GIEC OpenIR

	Measurement and modeling of the effective thermal conductivity for porous methane hydrate samples
	Li DongLiang 1; Du JianWei 1; He Song 1; Liang DeQing 1; Zhao XiangYong 1; Yang XiangYang 1
	2012-01-01
发表期刊	SCIENCE CHINA-CHEMISTRY
ISSN	1674-7291
卷号	55 期号:3 页码:373
摘要	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.
关键词	GAS HYDRATE MEDIA gas hydrate thermal conductivity fractal geometry model porosity
语种	英语
资助项目	[National Basic Research Program of China] ; [National Natural Science Foundation of China] ; [Guangdong Province Science and Technology Program]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/31323
作者单位	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
推荐引用方式 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.
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.
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.