Experiment Study on Temperature Distribution in Water-Saturated Porous Media

被引：0

作者：

Jiang, Lanlan ^{[1
]}

Zhou, Xinhuan ^{[1
]}

Song, Yongchen ^{[1
]}

Liu, Yu ^{[1
]}

Yu, Minghao ^{[1
]}

Yang, Mingjun ^{[1
]}

Xue, Ziqiu ^{[2
]}

Zhao, Yuechao ^{[1
]}

Wu, Bohao ^{[1
]}

Abudula, Abuliti ^{[3
]}

机构：

[1] Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Liaoning, Peoples R China

[2] Res Inst Innovat Technol Earth, Kizugawa City, Kyoto 6190292, Japan

[3] Hirosaki Univ, North Japan New Energy Res Ctr, Aomori 0300831, Japan

来源：

APPLIED MAGNETIC RESONANCE | 2015年 / 46卷 / 07期

基金：

中国国家自然科学基金;

关键词：

APPARENT DIFFUSION-COEFFICIENT; CHEMICAL-SHIFT; IN-VIVO; BRAIN; TIME; T-1; MRI;

D O I：

10.1007/s00723-015-0694-z

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

An attractive approach for magnetic resonance imaging (MRI) thermograph has been used to investigate temperature distribution in water-saturated porous media (silica gel). Linear relationships between several temperature-sensitive MRI parameters (longitudinal relaxation time T (1), self-diffusion coefficient D) and temperature (T) are dependent on water saturation in pore-throat structure of the porous media. Based on the linear relationships, the parameters including T (1) and D were evaluated using T (1)-weighted spin echo (SE) sequences and diffusion-weighted SE sequences, respectively, to measure temperature distribution by two-point method. In this work, we conducted calibration experiments to get the T (1)-T relationship and D-T relationship, which were then validated by cooling experiments. In the calibration experiment, the determination coefficients for the sample using T (1) and self-diffusion coefficient methods are close to 1 in the temperature range from 0 to 60 A degrees C, although T (1) method is difficult for the nonlinear relationship between signal intensity (SI) and T (1).

引用

页码：793 / 808

页数：16

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