月桂酸—火山石定型相变材料制备及特性分析

楚雄师范学院学报 ›› 2020, Vol. 35 ›› Issue (6): 31-34.

月桂酸—火山石定型相变材料制备及特性分析

何永泰, 张俊星

楚雄师范学院物理与电子科学学院, 云南楚雄 675000

收稿日期:2020-05-10 出版日期:2020-11-20 发布日期:2021-03-29
作者简介:何永泰（1970–）,男,博士,楚雄师范学院物理与电子科学学院教授,主要研究方向为太阳能光电/热综合应用。E-Mail：hyt@cxtc.edu.cn
基金资助:
国家自然科学基金（NO.51566001）

Preparation and Characteristic Analysis of Shape-stabilized Phase Change Material (PCM) for Lauric Acid-volcanic Rock

HE Yongtai, ZHANG Junxing

School of Physics &Electronic Science, Chuxiong Normal University, Chuxiong, Yunnan Province 675000

Received:2020-05-10 Online:2020-11-20 Published:2021-03-29

摘要/Abstract

摘要： 根据火山石内部蜂窝状结构,采用真空加温熔融吸附方法制备了月桂酸（LA）–火山石（VR）定型相变材料。并通过综合热分析、扩散–渗出圈法、步冷实验等对定型相变材料的热物参数、渗漏、热稳定性、储热特性等性能进行表征分析。结果表明,当复合PCM中火山石质量分数在45%–55%之间具有较好的结构稳定性,火山石质量分数为50% 时,其相变材料渗出第一圈的时间与纯LA相比延长超过20倍。但随火山石比重增加,其热焓会降低。

关键词: 火山石, 月桂酸, 定型相变材料, 热物特性

Abstract: According to the honeycomb structure of volcanic rocks, lauric acid (LA)-volcanic rocks (VR) shape-stabilized phase change materials were prepared using vacuum heating melt adsorption method. The thermal physical parameters, leakage, thermal stability and thermal storage characteristics of the phase change materials were characterized and analyzed by comprehensive thermal analysis, diffusion exudation circle method and step cooling experiment. The results show that PCM has good structural stability when the mass fraction of volcanic rock is between 45% and 55%. When the mass fraction of volcanic rock is 50%, the time of first cycle exudation of PCM is more than 20 times longer than that of pure La. However, with the increase of the specific gravity of volcanic rocks, the enthalpy will decrease.

Key words: volcanic rock, lauric acid, shape-stabilized phase change material (PCM), thermophysical property

中图分类号:

TU521.21

何永泰, 张俊星. 月桂酸—火山石定型相变材料制备及特性分析[J]. 楚雄师范学院学报, 2020, 35(6): 31-34.

HE Yongtai, ZHANG Junxing. Preparation and Characteristic Analysis of Shape-stabilized Phase Change Material (PCM) for Lauric Acid-volcanic Rock[J]. Journal of Chuxiong Normal University, 2020, 35(6): 31-34.

参考文献

[1] Goeke J,Henne A,Andreas H.Time-temperature charge function of a high dynamic thermal heat storage with phase change material[J].Energy and Power Engineering,2015,(2):41–54.
[2] Hamdan M A,Shehadeh M,Aboushi A A, et al.Photovoltaic cooling using phase change material[J].Jordan Journal of Mechanical and Industrial Engineering:2019,12(3):167–170.
[3] Zhang Y,Wang Q.Impact of phase change material's thermal properties on the thermal performance of phase change material hollow block wall[J].Heat Transfer Engineering,2019,40(19):1619–1632.
[4] 吴梓敏,黄雪,崔英德,等.多孔基定型相变材料的研究进展[J].仲恺农业工程学院学报[J],2015,28(2):66–70.
Wu Z M,Huang X,Cui Y D,et al.Review of porous materials as supporting materials for phase change materials[J].Journal of Zhongkai University of Agriculture and Engineering,2015,28(2):66–70.
[5] Yang G J,Yim Y J,Lee J W,et al.Carbon-filled organic phase change materials for thermal energy storage[J].A Review.Molecules,2019,24(11):2055.
[6] Wu W X,Wu W,Wang S F.Thermal management optimization of a prismatic battery with shape-stabilized phase change material[J].International Journal of Heat and Mass Transfer,2018,121:967–977.
[7] Zhou L,Wu X W,Wu N,et al.Shape stabilized thermochromic phase-change materials[J].Journal of Thermophysics and Heat Transfer,2018,32(1):269–272.
[8] Fan X M,Guan Y,Li Y Z,et al.Shape-stabilized cellulose Nanocrystal-based phase-change materials for energy storage[J].ACS Applied Nano Materials,2020,3(2):1741–1748.
[9] 叶志林,魏婷,易红玲,等.癸酸-棕榈酸/膨胀珍珠岩定型相变材料的制备与热性能[J].华东理工大学学报(自然科学版),2017,43(4):495–500.
Ye Z L,Wei T,Yi H L,et al.Preparation and thermal properties of capric-palmitic acid/expanded perlite shape-stabilized phase change materials[J].Journal of East China University of Science and Technology (Natural Science Edition)2017,43(4):495–500.
[10] 张正国,王学泽,方晓明.石蜡/膨胀石墨复合相变材料的结构与热性能[J].华南理工大学学报:自然科学版,2006,34(3):1–5.
Zhang Z G,Wang X Z,Fang X M.Structure and thermal properties of composite paraffin/expanded graphite phase-change material[J].Journal of South China University of Technology (Natural Science Edition),2006,34(3):1–5.
[11] 黄雪,崔英德,尹国强,等.月桂酸–膨胀复合相变材料的制备及性能[J].化工学报,2015,66(S1):370–374.
Huang X,Cui Y D,Yin G Q,et al.Preparation and performance of lauric acid-expanded graphite composite phase change materials[J].Journal of Chemical Industry and Engineering,2015,66(S1):370–374.