A high-performance solid-state electrocaloric cooling system

被引：179

作者：

Wang, Yunda ^{[1
]}

Zhang, Ziyang ^{[1
]}

Usui, Tomoyasu ^{[2
]}

Benedict, Michael ^{[1
]}

Hirose, Sakyo ^{[2
]}

Lee, Joseph ^{[1
]}

Kalb, Jamie ^{[1
]}

Schwartz, David ^{[1
]}

机构：

[1] PARC, 3333 Coyote Hill Rd, Palo Alto, CA 94304 USA

[2] Murata Mfg Co Ltd, 1-10-1 Higashikotari, Nagaokakyo, Kyoto 6178555, Japan

来源：

SCIENCE | 2020年 / 370卷 / 6512期

关键词：

D O I：

10.1126/science.aba2648

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Electrocaloric (EC) cooling is an emerging technology that has broad potential to disrupt conventional air conditioning and refrigeration as well as electronics cooling applications. EC coolers can be highly efficient, solid state, and compact; have few moving parts; and contain no environmentally harmful or combustible refrigerants. We report a scalable, high-performance system architecture, demonstrated in a device that uses PbSc0.5Ta0.5O3 EC multilayer ceramic capacitors fabricated in a manufacturingcompatible process. We obtained a system temperature span of 5.2 degrees C and a maximum heat flux of 135 milliwatts per square centimeter. This measured heat flux is more than four times higher than other EC cooling demonstrations, and the temperature lift is among the highest for EC systems that use ceramic multilayer capacitors.

引用

页码：129 / +

页数：25

共 50 条

[1]

Annapragada S.R., 2018, High-efficiency solid state heat pump module

[2]

[Anonymous], 2018, The Montreal Protocol on Substances That Deplete the Ozone Layer

[3] Experimental determination of thermal conductivity of printed wiring boards [J].