Assessment of three different gadolinium-based regenerators in a rotary-type magnetic refrigerator

Liu, Zhenxing; Shen, Jun; Li, Ke; Gao, Xinqiang; Guo, Xiaojie; Dai, Wei

doi:10.1016/j.applthermaleng.2019.02.100

Cited by 46 publications

(15 citation statements)

References 26 publications

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“…图 19 (网络版彩图)中国科学院理化技术研究所研制的旋转磁体式磁制冷系统 [78] Figure 19 (Color online) The rotary magnet type magnetic refrigeration system developed by the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences [78].…”

Section: 磁制冷技术mentioning

confidence: 99%

Development of magnetic refrigeration materials andtechnology

Shen¹,

Mo²,

Li³

et al. 2021

Sci. Sin.-Phys. Mech. Astron.

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Section: 磁制冷技术mentioning

confidence: 99%

Development of magnetic refrigeration materials andtechnology

Shen¹,

Mo²,

Li³

et al. 2021

Sci. Sin.-Phys. Mech. Astron.

Self Cite

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“…In the community of magnetic refrigeration, curves of cooling capacity (Q c ) vs. temperature span ( T) are usually defined as the cooling curves (Rowe, 2011). In general, the slope of the cooling curves is steeper in higher utilization conditions (Trevizoli et al, 2016;Li et al, 2019). At the end-points of cooling curve are zerospan cooling capacity and no-load temperature span, which are essential metrics in AMR devices (Teyber, 2018).…”

Section: Active Characterizationmentioning

confidence: 99%

“…This aimed at finding the optimal operating parameters. Li et al (2019) tested and compared the performance of AMRs with gadolinium plates, spheres and flakes using a rotary magnetic refrigerator with the result that better cooling performance was obtained in the AMRs filled with flakes/spheres. Trevizoli et al (2017) presented a systematic experimental evaluation of three AMRs with geometries of parallel-plate, pin array and packed sphere beds, based on approximately the same porosity and specific surface area; the AMR with packed spheres obtained the highest cooling capacity.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Freeze-Cast Micro-Channel Monoliths as Active and Passive Regenerators

et al. 2020

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The efficiency of the magnetic refrigeration process strongly depends on the heat transfer performance of the regenerator. As a potential way to improve the heat transfer performance of a regenerator, the design of sub-millimeter hydraulic diameter porous structures is realized by freeze-cast structures. Four freeze-cast regenerators with different pore widths are characterized experimentally and numerically. Empirical parameters are determined for the correlations of heat transfer and flow resistance via a 1D model. Thermal effectiveness and pressure drop are measured for thermal-hydraulic evaluations. Temperature span and specific cooling capacity are obtained to compare the magnetocaloric potential based on the material La0.66Ca0.27Sr0.06Mn1.05O3. The stability of freeze-cast regenerators is validated by comparing the performance during, before and after oscillatory flow and periodic magnetic field tests. Smaller pore design obtain the better heat transfer performance and required mechanical strength, while pore design with significant dendrites provides the worst tradeoff between heat transfer performance and flow resistance.

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“…To present, several new refrigeration technologies with refrigerant-free designs have been developed to potentially lessen the environmental impacts, for instances, magnetocaloric ( Li et al., 2019 ), electrocaloric ( Mischenko et al., 2006 ), elastocaloric ( Qian et al., 2019 ), thermoacoustic ( Backhaus and Swift, 1999 ), and barocaloric refrigerations ( Manosa et al., 2010 ). However, none of these technologies have been fully implemented in daily household cooling usage, which are mainly limited by various technical disadvantages and small cooling/heating capacities ( Ismail et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%