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沉积物中水合物导热系数原位测量研究

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Indexed by:会议论文

Date of Publication:2013-05-01

Page Number:13

Key Words:导热系数;四氢呋喃水合物;热敏电阻;点热源法

Abstract:基于热敏电阻法对多孔介质中水合物的导热系数进行测量。采用热敏电阻同时作为测温元件和点热源,利用三种标准物质进行了对热敏电阻的温度和导热测量进行了校正,并对多孔介质中四氢呋喃水合物导热系数进行了原位测量,得出一种适用于测量稳态下水合物导热系数方法。实验结果证明,基于热敏电阻法探头体积小,对待测物样温度干扰较小,便于布置,可实现多点测量,适用于-10℃—4℃温度范围四氢呋喃水合物导热系数测量,测量误差小于5%。

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