Recommended by the IIR / IIR document

Thermodynamic assessment of a large-scale magnetic air conditioning prototype.


This study presents an experimental analysis of the thermodynamic performance of a large-scale magnetic air-conditioning system prototype that uses a combination of La(Fe,Mn,Si)H and Gd in a sixteen-bed active magnetic regenerator (AMR) assembly. The performance of the system is compared with a previous version which operated in part load with eight regenerator beds and lower flow rates. The experiments were carried out in a relevant environment, characterizing a Technology Readiness Level (TRL) of 6, emulated by a calibrated calorimeter focusing on key performance metrics such as cooling capacity, coefficient of performance, and second-law efficiency. The experimental results demonstrate a maximum cooling capacity of 680 W, along with a temperature span of 8.7 K. Particularly noteworthy is the significant enhancement observed in the performance of the system when accounting for previously disregarded irreversibilities external to the active magnetic regenerators. From an AMR standpoint, the maximum values of the coefficient of performance and second law efficiency are 4.2 and 10.8%, respectively, but from the system perspective, these values are reduced to 0.41 and 0.84%, respectively.

Available documents

Format PDF

Pages: 40-53


  • Public price

    20 €

  • Member price*


* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).


  • Original title: Thermodynamic assessment of a large-scale magnetic air conditioning prototype.
  • Record ID : 30032244
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 160
  • Publication date: 2024/04
  • DOI:


See other articles in this issue (33)
See the source