化工学报2016，Vol.67Issue(10)：4169-4175,7.DOI:10.11949/j.issn.0438-1157.20160384
二氧化碳水合物导热和热扩散特性
Characteristics of thermal conductivity and thermal diffusivity of carbon dioxide hydrate
摘要
Abstract
Thermal conductivity and thermal diffusivity are two key basic factors of thermal property data that determine gas hydrate resource extraction. In this study, carbon dioxide hydrate sample was formed from a supersaturated carbon dioxide gas solution and layer by layer formed with the equal thickness in the reactor cell lined with fluorine plastics. The thermal conductivity and thermal diffusivity of carbon dioxide hydrate were in-situ measured by means of transient plane source technique. The measurements were performed at 264.68—282.04 K and 1.5—3 MPa. The measurements were also performed during self-preservation effect process at 268.05 K and 0.6 MPa. The characteristics of thermal conductivity and thermal diffusivity of carbon dioxide hydrate were obtained on crystalline state and during self-preservation effect process. The results of this paper can provide basic data and theoretical basis for the development and utilization of natural gas hydrate resources.关键词
水合物/热力学性质/热传导/热扩散率/平面热源法/自保护效应Key words
hydrate/thermodynamic properties/heat conduction/thermal diffusivity/transient plane source technique/self-preservation effect分类
化学化工引用本文复制引用
万丽华,梁德青,李栋梁,关进安..二氧化碳水合物导热和热扩散特性[J].化工学报,2016,67(10):4169-4175,7.基金项目
国家自然科学基金项目（51576197，51106163）；中国科学院知识创新工程（KGZD-EW-301）。 of China (51576197,51106163) and the Knowledge Innovation Program in Chinese Academy of Sciences (KGZD-EW-301) （51576197,51106163）
