Elastocalorics

Elastocaloric energy conversion

State of the art

  • New solid-state cooling and heat-pumping technology
  • It promises higher efficiencies and uses harmless solid-state refrigerants

What do we do?

  • Development of elastocaloric porous structures for application in elastocaloric devices
  • Development of 1kW elastocaloric preindustrial prototype device

Mechanical loading of elastocaloric material captured with IR camera (material heats up)

Unloading (releasing) of elastocaloric material captured with IR camera (material cools down)

The elastocaloric cooling is emerging as a new cooling and heat-pumping technology and is being considered in the recent years as one of the most promising alternatives to vapour compression cooling technology. The elastocaloric effect is closely related to the superelasticity of shape-memory alloys and their latent heat during the stress-induced martensitic transformation. When an elastocaloric material is uniaxially strained it heats up, and when it is released it cools down (below the initial temperature). To date around 10 proof-of-the-concept elastocaloric devices have been designed and tested. The best of them (based on active regenerative principle) can already generate commercially interesting cooling and heat-pumping characteristics with temperature spans of up to 20 K, specific heating power of up to 1 kW per kilogram of the elastocaloric material and an exergy efficiency of up to 20 %.

Elastocalorics

Experts in the field

doc. dr. Jaka Tušek
doc. dr. Jaka Tušek
dr. Parham Kabirifar
dr. Parham Kabirifar
Žiga Ahčin
Žiga Ahčin
Luka Porenta
Luka Porenta
Jan Cerar
Jan Cerar

Recent publications

Recent news

Questions?

Do not hesitate to contact us via e-mail or by telephone. You can also visit us at the Faculty of Mechanical Engineering in Ljubljana

003861-4771-167
jaka.tusek@fs.uni-lj.si

Aškerceva ul. 6
1000 Ljubljana
Slovenia