Electrocaloric cooling with electrostatic actuation
Abstract
A solid-state heat transporting device including a heat transporting element whose uniformity of contact with one or multiple surfaces is controllable so that various amounts of heat may be transported to and from the one or multiple surfaces. The heat transporting element uses the electrocaloric effect to absorb and release the heat and the uniformity of contact is controlled using an electrostatic effect which may change the shape of the heat transporting element. In one embodiment, the heat transporting element is an electrostatically actuated P(VDF-TrFE-CFE) polymer stack achieving a high specific cooling power of 2.8 W/g and a COP of 13 (the highest reported coefficient of performance to date) when used as a cooling device.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California, Oakland, CA (United States); SRI International, Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E); US Air Force Office of Scientific Research (AFOSR)
- OSTI Identifier:
- 1924926
- Patent Number(s):
- 11397031
- Application Number:
- 16/610,838
- Assignee:
- The Regents of the University of California (Oakland, CA); SRI International (Menlo Park, CA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- AR0000532; FA9550-12-1-0074
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/07/2018
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Pei, Qibing, Ma, Rujun, Zhang, Ziyang, Kornbluh, Roy, and Huber, David. Electrocaloric cooling with electrostatic actuation. United States: N. p., 2022.
Web.
Pei, Qibing, Ma, Rujun, Zhang, Ziyang, Kornbluh, Roy, & Huber, David. Electrocaloric cooling with electrostatic actuation. United States.
Pei, Qibing, Ma, Rujun, Zhang, Ziyang, Kornbluh, Roy, and Huber, David. Tue .
"Electrocaloric cooling with electrostatic actuation". United States. https://www.osti.gov/servlets/purl/1924926.
@article{osti_1924926,
title = {Electrocaloric cooling with electrostatic actuation},
author = {Pei, Qibing and Ma, Rujun and Zhang, Ziyang and Kornbluh, Roy and Huber, David},
abstractNote = {A solid-state heat transporting device including a heat transporting element whose uniformity of contact with one or multiple surfaces is controllable so that various amounts of heat may be transported to and from the one or multiple surfaces. The heat transporting element uses the electrocaloric effect to absorb and release the heat and the uniformity of contact is controlled using an electrostatic effect which may change the shape of the heat transporting element. In one embodiment, the heat transporting element is an electrostatically actuated P(VDF-TrFE-CFE) polymer stack achieving a high specific cooling power of 2.8 W/g and a COP of 13 (the highest reported coefficient of performance to date) when used as a cooling device.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 26 00:00:00 EDT 2022},
month = {Tue Jul 26 00:00:00 EDT 2022}
}
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