An electrocaloric device demonstrator for solid-state cooling

被引：18

作者：

Chukka, Rami ^{[1
]}

Vandrangi, Suresh ^{[1
]}

Shannigrahi, Santirajan ^{[1
]}

Chen, Lang ^{[1
,2
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[2] South Univ Sci & Technol China, Shenzhen 518055, Peoples R China

来源：

EPL | 2013年 / 103卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

D O I：

10.1209/0295-5075/103/47011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A prototype device was designed to demonstrate electrocaloric cooling of Pb(Mg1/3Nb2/3) O-3-PbTiO3 70/30 single crystals as active cooling elements. The test section was devised to investigate potential bulk cooling effects of the single-crystal materials under repeated electric-field cycles. Despite the low electrocaloric temperature changes measured by indirect method (Delta T-max = 2.7K in 240V), the test materials showed significant cooling rates under optimized device parameters compared to those of natural cooling conditions. It was emphasized that the pulse duration and frequency of the applied electric field play an important role in achieving high cooling rates in electrocaloric cooling devices besides high electrocaloric effects of test materials. Copyright (C) EPLA, 2013

引用

页数：4

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