ElKaWe – Electrocaloric heat pumps

Title picture for the Fraunhofer lead project electrocaloric heat pump
© Fraunhofer IPM
Fraunhofer starts development of refrigerant-free, energy-efficient electrocaloric heat pumps.

In the lighthouse project »ElKaWe«, six Fraunhofer Institutes under the direction of Fraunhofer IPM are working on the development of electrocaloric heat pumps for heating and cooling. Today, heat pumps work almost exclusively based on compressor technology. Electric caloric heat pumps promise significantly higher efficiency and do not require harmful refrigerants. As part of the project, the scientists are developing ceramic and polymer-based electrocaloric materials and are working on an innovative system concept that enables particularly efficient heat dissipation.

PROJECT TITLE

ElKaWe – Electrocaloric heat pumps

 

PROJECT DURATION

2019 − 2024

FUNDING SOURCE

Fraunhofer-Gesellschaft

COORDINATOR

Fraunhofer IPM

OBJECTIVES

  • Experimental proof that electrocaloric materials and systems are an alternative technology to existing compressor heat pumps
  • Construction of a demonstrator system for an electrocaloric heat pump with an achievable heat output of 100 W and a temperature swing of 30 K
  • Development of the electrical control for the heat pumps