An electrocaloric refrigerator without external regenerator

Haiming Gu, Xiao Shi Qian, Hui Jian Ye, Qiming Zhang

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


Regeneration processes are commonly used in cooling devices to improve the device performance. However, irreversible heat loss within the regenerators in many earlier designs of magnetocaloric and electrocaloric (EC) based cooling devices reduces the device performance. In this paper, an electrocaloric based refrigerator without external regenerators is proposed and studied. The regeneration process in this device is realized by direct heat exchange between contacting EC elements which are moving in opposite directions with different applied fields. Simulation results show that a 37 W/cm3 cooling power density is obtained for a Tspan of 20 K while the refrigerator still maintains 57% of Carnot efficiency for a cooling device made of an EC polymer.

Original languageEnglish (US)
Article number162905
JournalApplied Physics Letters
Issue number16
StatePublished - Oct 20 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'An electrocaloric refrigerator without external regenerator'. Together they form a unique fingerprint.

Cite this