Magnetocaloric Material

Environmental Friendly Refrigeration with CALORIVAC

CALORIVAC® is a magnetocaloric alloy enaBLIng solid state energy conversion such as magnetic refrigeration. It enables engineers to build gas-free magnetic refrigeration using magnetocaloric alloys as active materials

Benefits:

  • Non-toxic, cost-efficient magnetocaloric alloy for magnetic refrigeration
  • Enables the design of environmentally friendly, gas-free refrigeration and air-conditioning devices
  • Future proof technology with no legislative pressure on the end-user
  • Alternative areas of use are direct conversion of low-grade waste-heat in to electricity
  • Active area of R & D with sample quantities available upon request

Details

Three different machines are possible

  • Refrigeration and air conditioning devices
    • Mechanical energy required to turn a magnet is used to pump heat from a lower temperature level to a higher temperature level
  • Low grade waste heat conversion
    • Switching the magnetic state of the magnetocaloric material using hot and cold fluids electrical or mechanical energy can be generated
  • Adiabatic temperature change of 2 to 4 K @ 1.5 T magnetic field change 
  • Entropy change of 5 to 20 J/kgK @ 1.5 T magnetic field change
  • Magnetocaloric alloys covering a temperature range from 100 to 350 K enaBLIng their use in a multitude of applications
  • Thermal conductivity of about 8 W/mK

To satisfy the new F-gas regulation the refrigeration and air conditioning industry is suffering from the phase-down of hydrofluorocarbons. Magnetic refrigeration can offer a more energy efficient, completely gas-free and future proof alternative. By magnetizing and demagnetizing magnetocaloric alloys heat can be moved from a colder temperature level to a higher temperature level – the classical principle of a heat pump or refrigerator.

VAC has been active in the development of magnetocaloric alloys for several years. They have been tested in several prototypes

Three different machines are possible

  • Refrigeration and air conditioning devices
    • Mechanical energy required to turn a magnet is used to pump heat from a lower temperature level to a higher temperature level
  • Low grade waste heat conversion
    • Switching the magnetic state of the magnetocaloric material using hot and cold fluids electrical or mechanical energy can be generated
  • Adiabatic temperature change of 2 to 4 K @ 1.5 T magnetic field change 
  • Entropy change of 5 to 20 J/kgK @ 1.5 T magnetic field change
  • Magnetocaloric alloys covering a temperature range from 100 to 350 K enaBLIng their use in a multitude of applications
  • Thermal conductivity of about 8 W/mK

To satisfy the new F-gas regulation the refrigeration and air conditioning industry is suffering from the phase-down of hydrofluorocarbons. Magnetic refrigeration can offer a more energy efficient, completely gas-free and future proof alternative. By magnetizing and demagnetizing magnetocaloric alloys heat can be moved from a colder temperature level to a higher temperature level – the classical principle of a heat pump or refrigerator.

VAC has been active in the development of magnetocaloric alloys for several years. They have been tested in several prototypes

Magnetocaloric Materials CALORIVAC

Product Information

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