Magnetics Business & Technology - November/December 2024 - 19

RESEARCH & DEVELOPMENT
Introducing the Future of Cooling Technology
As the demand for efficient and environmentally-friendly
cooling solutions continues to
grow, magnetically-based cooling systems
have emerged as a cutting-edge technology.
Bakker Magnetics, now offers innovative
cooling solutions that utilize the power of
magnets, providing the most advanced and
effective cooling options available.
A great example of these cooling solutions is the magnetocaloric
effect, which refers to the thermal response of certain materials
to variations in a magnetic field. Researchers at the Federal
University of Santa Catarina are using this effect to develop an
energy-efficient magnetocaloric wine cooler that has the potential
to revolutionize the (wine) cooling industry.
Hallbach magnets are a crucial part of this technology. This is
where Bakker's knowledge and experience comes into play. Configuring
Hallbach magnet arrays can be a challenging process
due to their exceptionally strong magnetic forces. However, the
team of experts at Bakker Magnetics has the knowledge and experience
needed to tackle even the most complex Hallbach magnet
configurations.
Researchers at POLO are currently developing an energy-efficient
magnetocaloric wine cooler that relies on the magnetocaloric effect.
This is the thermal response of certain materials to changes
in a magnetic field. The cooler utilizes Active Magnetic Regenerators
(AMRs) that work together with the magnet to create a refrigeration
effect similar to that of a compressor in a traditional fridge.
Innovation
This innovation - basically a heat pump - could potentially contribute
to the goal of a CO2-neutral Europe. In addition to sustainable
cooling, this versatile system can also provide space heating and
hot water. Conceivable applications include refrigerators, wine
coolers and air conditioners. But this energy-efficient technology
also has very interesting implications when it comes to cooling
processes on a larger industrial scale.
Expertise
Bakker draws on its expertise to assemble the magnetic part of
this pump and the magnetic forces involved, using highly complex
Halbach arrays in the process. A precise and accurate approach
is key. This is one of the most complex systems that Bakker has
ever built; one of our employees spent six months assembling the
magnetic component of this innovation. The project makes use
of a so-called magnetocaloric heat pump, in which the magnetocaloric
properties of certain metals are crucial. These properties
operate in a limited critical temperature range.
Collaboration
Bakker Magnetics' collaboration with the university stems from a
long-standing relationship based on our years of experience and
knowledge of magnetism, materials, adhesive properties, coatings
and the dangers involved in working with magnetism. Bakker
Magnetics also cooperates with other universities in the field of
applied magnetism. In addition to the Federal University of Santa
Catarina in Brazil, we also work with the University of Salerno, the
University of Ljubljana and the University of Denmark .
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November/December 2024 * Magnetics Business & Technology 19
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Magnetics Business & Technology - November/December 2024

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