New frontiers in magnetic refrigeration with high oscillation energy-efficient electromagnets

Klinar, Katja; Tomc, Urban; Jelenc, Blaž; Nosan, Simon; Kitanovski, Andrej

doi:10.1016/j.apenergy.2018.12.055

Cited by 32 publications

(22 citation statements)

References 63 publications

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“…The work covered a large number of interdisciplinary domains that contribute to thermal control in magnetocalorics. However, the most comprehensive review of research on thermal control elements in caloric technologies can be found in the following reference . The work includes the targeted features of thermal control elements used for caloric energy conversion.…”

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

“…Electromagnets have been used specifically for the purpose of testing magnetocaloric regenerators. They were only recently applied to magnetic refrigeration and heat pumping . The on–off operation of a conventional electromagnet is rather slow, implying a low operation frequency.…”

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

“…To the best knowledge of the author, the use of energy efficiency as a figure of merit for comparing different magnetic field sources has not been extensively evaluated using different magnetic field sources and different configurations. However, there has been a publication of an attempt to compare a static electromagnetic field source and a rotary permanent magnet assembly . The second figure of merit is related to the economics of the device.…”

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

“…(Top) Schematic diagram of the operating principle with an electromagnetic field source with magnetic energy recovery and its characteristic magnetization/demagnetization process; (bottom) schematic diagram of the static operating principle with a conventional electromagnetic field source used in experiments with magnetocaloric materials and the characteristic magnetization/demagnetization process. Adapted with permission . Copyright 2019, Elsevier.…”

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

“…They were only recently applied to magnetic refrigeration and heat pumping. [315] The on-off operation of a conventional electromagnet is rather slow, implying a low operation frequency. Operations at higher frequencies would require the use of a permanently activated electromagnet with movement of the magnetocaloric regenerator.…”

Section: Electromagnetsmentioning

confidence: 99%

See 4 more Smart Citations

Energy Applications of Magnetocaloric Materials

Kitanovski

2020

Advanced Energy Materials

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The need for energy‐efficient and environmentally friendly refrigeration, heat pumping, air conditioning, and thermal energy harvesting systems is currently more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives for achieving these technological goals and has been the subject of substantial basic and applied research over the last two decades. The subject is strongly interdisciplinary, requiring proper understanding and efficient integration of knowledge in different specialized fields. This review article presents a historical and up‐to‐date account of the energy‐related applications of magnetocaloric materials and information about their processing and magnetic fields, thermodynamics, heat transfer, and other relevant characteristics. The article also discusses the conceptual design of magnetocaloric refrigeration and power generation systems and some guidelines for future research in the field.

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Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

Section: Magnetocaloric Refrigeration and Heat Pumpingmentioning

confidence: 99%

Section: Electromagnetsmentioning

confidence: 99%

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Energy Applications of Magnetocaloric Materials

Kitanovski

2020

Advanced Energy Materials

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377

156

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Fluidic and Mechanical Thermal Control Devices

Klinar

Swoboda

Rojo

et al. 2020

Adv Elect Materials

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In recent years, intensive studies on thermal control devices have been conducted for the thermal management of electronics and computers as well as for applications in energy conversion, chemistry, sensors, buildings, and outer space. Conventional cooling or heating techniques realized using traditional thermal resistors and capacitors cannot meet the thermal requirements of advanced systems. Therefore, new thermal control devices are being investigated to satisfy these requirements. These devices include thermal diodes, thermal switches, thermal regulators, and thermal transistors, all of which manage heat in a manner analogous to how electronic devices and circuits control electricity. To design or apply these novel devices as well as thermal control principles, this paper presents a systematic and comprehensive review of the state‐of‐the‐art of fluidic and mechanical thermal control devices that have already been implemented in various applications for different size scales and temperature ranges. Operation principles, working parameters, and limitations are discussed and the most important features for a particular device are identified.

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Caloric devices: A review on numerical modeling and optimization strategies

2021

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Summary The discovery of giant caloric effects and further investigation on device systems that can compete with current heat management technologies in terms of efficiency have led to a major increase in modeling investigations. These models have been crucial in designing the most efficient, cheap, and robust setups with reliable performances. One example is the modeling of magnetic refrigerators and heat pumps that has been used in the optimization of critical geometrical parameters of magnetocaloric regenerators. In this paper, we review the model components of caloric heat pump and refrigerator systems, including field generation, heat transfer, caloric effects, fluid dynamics, and loss mechanisms. We also review the optimization strategies used so far, which are based on sensitive analysis, brute force approaches, statistical learning, and genetic algorithms. The analysis is applied to magnetocaloric, electrocaloric, elastocaloric, and barocaloric systems.

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New frontiers in magnetic refrigeration with high oscillation energy-efficient electromagnets

Cited by 32 publications

References 63 publications

Energy Applications of Magnetocaloric Materials

Energy Applications of Magnetocaloric Materials

Fluidic and Mechanical Thermal Control Devices

Caloric devices: A review on numerical modeling and optimization strategies

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