Performance Characteristics of a Magnetic Ericsson Refrigeration Cycle Using La(Fe_0.88Si_0.12)₁₃H₁ or Gd as the Working Substance

Abstract:

Based on the experimental characteristics of iso-field entropy varying with temperature for the room-temperature magnetic refrigeration material La(Fe_0.88Si_0.12)₁₃H₁ or Gd, the regenerative Ericsson refrigeration cycle using La(Fe_0.88Si_0.12)₁₃H₁ or Gd as the working substance is established and their thermodynamic performances are evaluated and analyzed. By means of numerical calculation, the influence of non-perfect regeneration on the main thermodynamic performances of the cycle is revealed and discussed. Furthermore, the coefficient of performance (COP), non-perfect regenerative heat quantity, and net cooling quantity of the Ericsson refrigeration cycle using La(Fe_0.88Si_0.12)₁₃H₁ or Gd as the working substance are compared. The results obtained show that it is beneficial to the cooling quantity of the cycles using La(Fe_0.88Si_0.12)₁₃H₁ or Gd as the working substance to operate in the region of T_cold >T₀ and, at the condition of a same temperature span, the cooling quantity for La(Fe_0.88Si_0.12)₁₃H₁ is larger than that for Gd.

• Periodical: Advanced Materials Research (Volumes 631-632)
• Pages: 322-325
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.631-632.322
• Online since: January 2013
• Authors: Jun Yi Wang, Gildas Diguet, Guo Xing Lin, Jin Can Chen
• Keywords: Magnetic Material, Magnetocaloric Effect, Room-Temperature Magnetic Refrigeration

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