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High frequency magnetocaloric cooling.

Number: 0022

Author(s) : TOMC U., NOSAN S., KLINAR K., PETELIN N., VELKAVRH B., VOZEL K., PERNE J., BOGIĆ S., KITANOVSKI A.

Summary

Magnetocaloric cooling represents one of the most promising alternatives to vapour-compression. Despite that this technology has made substantial progress over last two decades, there are still unsolved challenges regarding the use of rare-earth materials, energy efficiency, and the competitive cost of potential future devices. State-of-the-art devices are based on the so-called Active Magnetic Regeneration, which is moderately efficient at low operating frequencies (up to 5 Hz). To achieve considerable cooling power and magnetic fields at such low frequencies, significant amounts of magnetocaloric and permanent magnet materials are required. A new research direction has emerged in recent years where researchers are trying to develop devices that operate efficiently at much higher frequencies (up to 50 Hz or more). We present a high-energy efficiency electro-permanent magnetic field source, which is able to oscillate relatively high magnetic fields without moving parts and at operating frequencies up to 50 Hz with energy efficiency above 80%. 

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Pages: 10

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Details

  • Original title: High frequency magnetocaloric cooling.
  • Record ID : 30032630
  • Languages: English
  • Subject: Technology
  • Source: 10th IIR Conference on Caloric Cooling and Applications of Caloric Materials
  • Publication date: 2024/08/24
  • DOI: http://dx.doi.org/10.18462/iir.thermag.2024.0022

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