Elastocaloric Effect

Elastocaloric materials are solids capable of stress-induced reversible phase transformations during which latent heat is released or absorbed. The elastocaloric effect occurs when stress is applied or removed, and a phase transformation is induced. As a result of the entropy difference between the two co-existing phases, the material heats up or cools down. A good elastocaloric material must exhibit a large latent heat, a large adiabatic temperature change, good thermal conductivity, long fatigue life, and low cost. Shape memory polymers can also exhibit elastocaloric effect.

Elastocaloric Materials

  • Alloys
  • Ceramics
  • Salts
  • Polymers

Advantages of Elastocaloric Refrigeration

  • More efficient than vapor-compression refrigeration
  • No gases or volatile liquids involved
  • Non-hazardous
  • Re-usable and recyclable parts and components