胡海龙

特聘副教授 硕士生导师

入职时间:2019-03-15

所在单位:航空航天技术研究院

职务:Assoicate Professor

学历:博士研究生毕业

办公地点:中南大学校本部升华后楼602

联系方式:邮箱:hailonghu@csu.edu.cn

学位:博士学位

在职信息:在职

毕业院校:澳大利亚新南威尔士大学 (The University of New South Wales)

学科:材料科学与工程
航空宇航科学与技术

曾获荣誉:

2020-2021年《中南大学学报(英文版)》优秀审稿专家

2014-2018年 澳大利亚新南威尔士大学博士学位攻读留学全额奖学金

2014年 中科院上硅所 严东生优秀奖学金

2013年 中科院上硅所 国家奖学金

2011年 中南大学 优秀毕业生

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Electrocaloric Effect of Structural Configurated Ferroelectric Polymer Nanocomposites for Solid-State Refrigeration

发布时间:2022-01-03

点击次数:

影响因子:9.229

DOI码:10.1021/acsami.1c13614

发表刊物:ACS Applied Materials & Interfaces

关键字:nanocomposites, finite element analysis (FEA), COMSOL Multiphysics, electrocaloric effect, solid-state refrigeration

摘要:To successfully complete the design of high-performance electrocaloric devices for advanced flexible cooling systems, it is necessary to comprehensively consider the optimization of composite materials, structural design of nanocomposites, and device integration. The cooling power density and energy storage density of various structural configurated poly(vinylidene fluoride) (PVDF)-based polymer nanocomposites are investigated using a phase-field model through the general formulation of a partial differential equation of COMSOL Multiphysics and finite element analysis through Maxwell’s equation of conservation of charge. It is revealed that ferroelectric polymer nanocomposites composed of boron nitrate fibers (BNf) + BCZT@BaTiO3(f) + PVDF possess the optimal result regarding their cooling power as well as the energy storage density. The cooling power density of the core−shellstructured BNf + BCZT@BaTiO3(f) + PVDF nanocomposites is evaluated as a function of the volume content, frequency, and electric field, where a remarkable cooling power density of 162.2 W/cm3 is achieved at 4 Hz with energy storage density of 33.4 J/cm3 under a 500 MV/m field. Therefore, by performing the systematic study of the electrocaloric effect in structural configurated ferroelectric polymer nanocomposites for solid-state refrigeration, this opens an avenue for developing remarkably improved power density with reduced weight in aerospace energy storage technology.

论文类型:期刊论文

学科门类:工学

文献类型:J

卷号:13

期号:1

页面范围:46681-46693

是否译文:

发表时间:2021-09-21

收录刊物:SCI

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