文献类型：期刊文献

英文题名：An electrocaloric refrigerator with direct solid to solid regeneration

作者：Zhang, Tian;Qian, Xiao-Shi[2];Gu, Haiming[3];Hou, Ying[4];Zhang, Q. M.[1]

机构：[1]Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA; Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA;[2]Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90024 USA;[3]Oracle Lnc, 4110 Network Circle,RM 3216, Santa Clara, CA 95054 USA;[4]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2017

卷号：110

期号：24

外文期刊名：APPLIED PHYSICS LETTERS

收录：;EI(收录号：20172503801877);WOS:【SCI-EXPANDED(收录号:WOS:000403678300030)】；

基金：The works reported here were supported partially by the ENGINE fund of College of Engineering of Penn State University. The ceramic multilayer capacitors were fabricated by Yageo Corporation, Taiwan.

语种：英文

外文关键词：Electric fields - Refrigerators - Cooling - Ceramic materials - Capacitors

摘要：Regenerative cooling has been used to improve the efficiency of refrigerators. Recently, exploiting the easy controlling of the electric fields, a regenerative electrocaloric (EC) cooling device with direct solid to solid regeneration has been proposed. Here, we report an experimental study of such an EC cooling device. For the EC device to be operated at a household voltage, the EC multilayer ceramic elements were first developed employing the multilayer ceramic capacitor fabrication technique. Under a voltage of 200 V, the EC multilayers with the commercial Y5V ceramic composition exhibit an electric field induced temperature change DT of 0.86 K. Testing results of a prototype EC device based on these EC multilayer elements show that even with only two EC rings, which is the minimum unit required to demonstrate the operation, such an EC device can generate a temperature span between hot and cold ends about three times of DT of the EC multilayers. Published by AIP Publishing.