Numerical analysis on Distributions of Temperature and Flow Velocity in an Inertance Pulse Tube Cryocooler

JAESOO, KIM and JONGWOOK, CHOI and KYUNGHWAN, LEE and SEONGHYUN, HAN (2014) Numerical analysis on Distributions of Temperature and Flow Velocity in an Inertance Pulse Tube Cryocooler. In: Second International Conference on Advances in Mechanical, Aeronautical and Production Techniques - MAPT 2014, 20 - 21 December, 2014, Kuala Lumpur, Malaysia.

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Abstract

The inertance pulse tube cryocooler (IPTC) is well known as one of the most effective cryocooler for the cooling of infrared imaging detectors and superconducting technologies. The reciprocating flow in an IPTC was modeled with a computational thermal fluid dynamics. Two dimensional modeling consists of the flows in the cylinder of compressor, a regenerator, a pulse tube, heat exchangers, an inertance tube, and a gas reservoir. The user-defined function was applied to the compression and expansion stroke of piston in the compressor. It was confirmed that the temperature at the cold heat exchanger decayed to the lowest temperature with an oscillating convergence due to the compression and expansion of piston in the compressor. The spatial distributions of temperature and flow velocity are also compared for the piston at the top dead center and bottom dead center during compression and expansion strokes.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: inertance, pulse tube, cryocooler, reciprocating flow
Depositing User: Mr. John Steve
Date Deposited: 17 Apr 2019 06:33
Last Modified: 17 Apr 2019 06:33
URI: http://publications.theired.org/id/eprint/1253

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