COMPOSITES WITH ENHANCED THERMAL CONDUNCTIVITY AND ELECTROCALORIC STRENGTH FOR HIGH-POWER REFRIGERATION APPLICATIONS

被引：0

作者：

Li, Qiang ^{[1
]}

Du, Feihong ^{[1
]}

Feng, Jiawang ^{[1
]}

Shi, Junye ^{[1
]}

Chen, Jiangping ^{[1
]}

Qian, Xiaoshi ^{[1
,2
]}

机构：

[1] State Key Laboratory of Mechanical System and Vibration, Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai,200240, China

[2] ZhongGuanCun Research Institute, Shanghai Jiao Tong University, Liyang,213300, China

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 07期

关键词：

Barium zirconate - Refrigeration - Thermoelectric power;

D O I：

10.19912/j.0254-0096.tynxb.2023-0384

中图分类号：

学科分类号：

摘要：

Here the electrocaloric effect（ECE）and thermal conductivity of polymer-based electrocaloric（EC）materials are improved by means of the preparation of BaZr0.2Ti0.8O3-P（VDF-TrFE-CFE）nanocomposites. In addition，high-power refrigeration devices based on fluid-solid conjugated heat transfer were designed and numerical simulations were carried out to evaluate the cooling capacity and efficiency. The results show that T-BZT-10%（with a BZT mass fraction of 10%）has significantly ECE and heat transfer performance than that of the base terpolymer. Simulation results about the devices show that at a temperature span of 10 K，a system with T-BZT-10% as the core refrigeration element can achieve a cooling power density of 31.0 W/cm3 and total cooling power of 1060.4 W（more than a 10-fold cooling power improvement than that of the base EC device）with a COP of 5.2. © 2024 Science Press. All rights reserved.

引用

页码：420 / 426

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