Numerical Simulation of Magnetic Field Effect on Cryocooler Regenerators: Temperature Distribution. (3rd January 2017)

• Record Type: Journal Article
• Authors: Kumar, Rajendra; Shoor, Sumit
• Other Names: Manolakos Dimitrios E. Academic Editor.
• Is Part Of: Modelling and simulation in engineering. Volume 2017(2017)
• Publication Date: 2017-01-03
• Subjects: Engineering -- Simulation methods -- Periodicals; Engineering -- Mathematical models -- Periodicals; 620.004
• DOI: 10.1155/2017/6171303
• Languages: English
• ISSNs: 1687-5591

Abstract

Abstract : Regenerative types of cryogenic refrigerators (or cryocoolers) employ magnetic intermetallic compounds of 3d and 4f elements to work well below 10 K. This paper presents the analysis of temperature distribution in regenerators of such cryocoolers under the influence of magnetic fields of 1 T, 3 T, and 4.3 T. Commercial code of finite element analysis (FEA) package, ANSYS (APDL) 14.5, is used to investigate the temperature distribution under above-mentioned fields. E r 3 N i is selected as regenerator material and the criteria for its selection are discussed in detail. The cold end temperature is varied from 4.2 K to 10 K and hot end temperature is fixed at 20 K. The values obtained from FEA clearly show that the ineffectiveness of E r 3 N i is at 8 K and 10 K at 3 T and 4.3 T.