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IIR document
Simulations and design of a refrigerating device based on a rotating magnetocaloric disc.
Number: pap. 0034
Author(s) : FARINA A., RIABOVA K., BENNATI C.
Summary
The possibility of utilizing a Gd disc as an active magnetic regenerator (AMR) is investigated. We have designed a demonstration device based on a rotating disc with a fixed magnetic circuit covering one quarter of its area. The device implies zero thermal load with the operation fluid flowing through. Simulations are based on discretization of the heat transfer equations for the disc and the fluid domains using the finite difference method. The magnetocaloric effect (MCE) is included in the model as an instantaneous adiabatic temperature change of each element entering the magnetic field. Regenerative effect is obtained as at each radius of the disc the magnetocaloric material (MCM) operates switching its temperature around a different average, which decreases from periphery to centre. This allows the total temperature drop of the operational fluid to be several times larger than the adiabatic temperature change.
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Details
- Original title: Simulations and design of a refrigerating device based on a rotating magnetocaloric disc.
- Record ID : 30025037
- Languages: English
- Source: 8th International Conference on Caloric Cooling (Thermag VIII). Proceedings: Darmstadt, Germany, September 16-20, 2018.
- Publication date: 2018/09/16
- DOI: http://dx.doi.org/10.18462/iir.thermag.2018.0034
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