An electrocaloric refrigerator without external regenerator

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

doi:10.1063/1.4898812

An electrocaloric refrigerator without external regenerator

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

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

71 Scopus citations

Abstract

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 T_span of 20 K while the refrigerator still maintains 57% of Carnot efficiency for a cooling device made of an EC polymer.

Original language	English (US)
Article number	162905
Journal	Applied Physics Letters
Volume	105
Issue number	16
DOIs	https://doi.org/10.1063/1.4898812
State	Published - Oct 20 2014

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4898812

Cite this

@article{ec9ac7b2ea484c54a811cb561cea858d,

title = "An electrocaloric refrigerator without external regenerator",

abstract = "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.",

author = "Haiming Gu and Qian, {Xiao Shi} and Ye, {Hui Jian} and Qiming Zhang",

note = "Publisher Copyright: {\textcopyright} 2014 AIP Publishing LLC.",

year = "2014",

month = oct,

day = "20",

doi = "10.1063/1.4898812",

language = "English (US)",

volume = "105",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "16",

}

TY - JOUR

T1 - An electrocaloric refrigerator without external regenerator

AU - Gu, Haiming

AU - Qian, Xiao Shi

AU - Ye, Hui Jian

AU - Zhang, Qiming

PY - 2014/10/20

Y1 - 2014/10/20

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84908199154&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84908199154&partnerID=8YFLogxK

U2 - 10.1063/1.4898812

DO - 10.1063/1.4898812

M3 - Article

AN - SCOPUS:84908199154

SN - 0003-6951

VL - 105

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

M1 - 162905

ER -

An electrocaloric refrigerator without external regenerator

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this