Numerical simulation of a two-stage pulse tube refrigerator based on adiabatic model

Thejaswini, MN and Chandan, V and Kasthurirengan, S and Vasudevan, K (2018) Numerical simulation of a two-stage pulse tube refrigerator based on adiabatic model. In: Heat Transfer - Asian Research, 47 (5). pp. 705-717.

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Abstract

Cryocoolers are devices that are capable of achieving and maintaining cryogenic temperatures for a number of applications such as high-energy physics, cooling of superconducting magnets, sensors, high-vacuum production, cryotronics, cryonics, and so on. All the above applications need coolers with high reliability, efficiency, low maintenance, and low cost. The absence of moving parts at the cryogenic temperatures makes the pulse tube (PT) coolers quite suitable for the above applications. In spite of considerable developments in the area of PT cryocoolers, many of the fundamental processes responsible for the cold production are not fully understood. In this work, we present the results of numerical simulations of two-stage pulse tube refrigerators (PTR) using adiabatic flow of gas through the pulse tube system. A two-stage PTR is the improved version of single-stage system to achieve temperature close to 4Â K. Assuming adiabatic gas flow through PTs, the algebraic equations for pressure, mass flow, and volumes at different locations have been derived and solved by a MATLAB based program. Using the above, the performance of PTR has been optimized for different operational parameters. The cooling powers predicted by the model have been compared with the experimental data, and they are in good agreement with each other.

Item Type:	Journal Article
Publication:	Heat Transfer - Asian Research
Publisher:	John Wiley and Sons Inc.
Additional Information:	The copyright for this article belongs to the John Wiley and Sons Inc.
Keywords:	Cooling; Cooling systems; Cryogenic equipment; Flow of gases; High energy physics; MATLAB; Numerical analysis; Numerical models; Refrigerators; Regenerators; Superconducting magnets, Adiabatic models; Algebraic equations; Cryocoolers; Cryogenic temperatures; Operational parameters; Pulse tube refrigerators; Pulse tubes; Single stage system, Tubes (components)
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited:	10 Aug 2022 06:41
Last Modified:	10 Aug 2022 06:41
URI:	https://eprints.iisc.ac.in/id/eprint/75494

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