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- Title
Multidimensional numerical simulation of thermodynamic and oscillating gas flow processes of a Gifford-McMahon cryocooler.
- Authors
Panda, Debashis; Satapathy, Ashok Kumar; Sarangi, Sunil Kr.; Behera, Upendra
- Abstract
The Gifford-McMahon cryocoolers are considered to be prominent candidates for the cooling of high-temperature superconducting magnets, liquefaction of permanent gases, helium recondensation in magnetic resonance imaging machines, cooling of superconducting quantum interference device, etc. In this paper, multi-dimensional numerical simulation is performed to visualize the oscillating heat and fluid flow processes that happen in a mechanically driven GM cryocooler. Influence of the ideal gas equation and real gas equation of states on the cooling behaviour is explained. The minimum achievable refrigeration temperature of a uniform mesh regenerator is compared with a multi-mesh regenerator. It is noticed that a multi-mesh regenerator produces a lower refrigeration temperature as compared to a uniform mesh regenerator. In addition to this, a one-dimensional simulation is conducted and results are compared with multi-dimensional numerical simulation. The no-load temperature value calculated by the one-dimensional model and multi-dimensional model with ideal gas is lower than that of real gas equations. Additionally, the refrigerating capacity calculated by the one-dimensional model and multi-dimensional model with the ideal gas equation is higher than those of the real gas equation of state.
- Subjects
SUPERCONDUCTING quantum interference devices; GAS flow; REAL gases; HIGH temperature superconductors; COMPUTER simulation; IDEAL gases
- Publication
Journal of Non-Equilibrium Thermodynamics, 2024, Vol 49, Issue 1, p27
- ISSN
0340-0204
- Publication type
Article
- DOI
10.1515/jnet-2023-0026