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Novel design of a high efficiency multi-bed active magnetic regenerator heat pump
ID DallʹOlio, Stefano (Avtor), ID Masche, M. (Avtor), ID Liang, Jierong (Avtor), ID Insinga, A. R. (Avtor), ID Eriksen, Dan (Avtor), ID Bjørk, Rasmus (Avtor), ID Nielsen, Kaspar K. (Avtor), ID Barcza, Alexander (Avtor), ID Vieyra, Hugo (Avtor), ID Beek, Niels V. (Avtor), ID Neves Bez, Henrique (Avtor), ID Engelbrecht, Kurt (Avtor), ID Bahl, Christian Robert Haffenden (Avtor)

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Izvleček
The design of a rotary active magnetic regenerator heat pump device with a multi-bed concept is presented. Important design features are the rotating two-pole magnet assembly, the laminated iron ring, the 13 fixed tapered regenerator beds, and the dynamically adjustable parallel flow circuit. The optimized magnet design was developed with optimally shaped segments and optimum remanence for the desired magnetic field distribution oscillating between 0 and 1.44 T in the air gap. The iron ring was laminated to reduce the eddy currents, allowing the device to run at cycle frequencies up to 3 Hz. The design of the regenerator housing was optimized with respect to parasitic losses and even flow distribution in both directions. Employing 3.4 kg of La(Fe,Mn,Si)13Hy (CALORIVAC HS) refrigerant and at a hot reservoir temperature of 295 K and a cycle frequency of 0.5 Hz, the heat pump achieved a maximum second-law efficiency of 20.6 %, while providing a heating load of 340 W with a heating COP of 6.7 at a 10.3 K span. The COP values presented only consider the magnetic power and ideal pump power delivered to the AMR, neglecting the pump efficiency. At 1.2 Hz, the device produced a maximum heating power of 950 W while maintaining a 5.6 K span, resulting in a heating coefficient of performance and second-law efficiency of 7.0 and 11.6 %, respectively. The performance demonstrated in this paper could be an important milestone in the development of future magnetocaloric devices.

Jezik:Angleški jezik
Ključne besede:magnetic refrigeration, magnetocaloric effect, heat pumps, active magnetic regenerators
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2021
Št. strani:Str. 243-254
Številčenje:Vol. 132
PID:20.500.12556/RUL-134664 Povezava se odpre v novem oknu
UDK:621.57
ISSN pri članku:0140-7007
DOI:10.1016/j.ijrefrig.2021.09.007 Povezava se odpre v novem oknu
COBISS.SI-ID:94222595 Povezava se odpre v novem oknu
Datum objave v RUL:25.01.2022
Število ogledov:477
Število prenosov:109
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:International journal of refrigeration
Skrajšan naslov:Int. j. refrig.
Založnik:Elsevier Science
ISSN:0140-7007
COBISS.SI-ID:9140997 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:11.09.2021
Vezano na:Available online

Sekundarni jezik

Jezik:Slovenski jezik
Naslov:Nouvelle conception d’une pompe à chaleur à régénérateur magnétique actif à lits multiples et à haut rendement
Ključne besede:magnetno hlajenje, magneto-kalorični učinek, toplotne črpalke, aktivni magnetni regeneratorji

Projekti

Financer:EC - European Commission
Program financ.:H2020
Številka projekta:814865
Naslov:Renewables for clean energy buildings in a future power system
Akronim:RES4BUILD

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Innovation Fund Denmark
Številka projekta:12-132673
Akronim:ENOVHEAT

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