Phase-Change Characteristic Analysis of Partially Melted Sodium Acetate Trihydrate Using DSC

被引：49

作者：

Jin, Xing ^{[1
]}

Medina, Mario A. ^{[2
]}

Zhang, Xiaosong ^{[3
]}

Zhang, Shuanglong ^{[3
]}

机构：

[1] Southeast Univ, Key Lab Urban & Architectural Heritage Conservat, Minist Educ, Sch Architecture, Nanjing 210096, Jiangsu, Peoples R China

[2] Univ Kansas, Civil Environm & Architectural Engn Dept, Lawrence, KS 66045 USA

[3] Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2014年 / 35卷 / 01期

基金：

中国博士后科学基金;

关键词：

Sodium acetate trihydrate; Phase-change material; Partially melted; DSC; THERMAL-ENERGY STORAGE; BEHAVIOR;

D O I：

10.1007/s10765-014-1560-1

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

Sodium acetate trihydrate (SAT), which is a kind of phase-change material, offers high potential for application in thermal energy storage. However, SAT has a natural tendency to supercool during its solidification process. Adding nucleating agents has been suggested as a possible solution. In this paper, the phase-change characteristics of the partially melted SAT were analyzed using a differential scanning calorimeter (DSC). A phenomenon related to SAT undergoing phase change was discovered and analyzed. The results showed that if SAT were cooled when it was partially melted, it would release heat and quickly solidify without adding any nucleating agents. Therefore, if the temperature range of SAT was controlled properly, supercooling could be significantly prevented.

引用

页码：45 / 52

页数：8

共 18 条

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