Journal article
Numerical analysis of an OPTR: Optimization for space applications
Cryogenics (Guildford), v 52(4-6)
01 Apr 2012
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A numerical study is reported here for the investigation of the flow and heat transfer processes in a co-axial type single stage orifice type pulse tube refrigerator (OPTR). The OPTR is driven by a cyclically moving piston at one end of the system with helium as the working fluid. The regenerator and the various heat exchangers are modeled as porous media and a thermal non-equilibrium model is applied in these regions. The simulations reveal interesting steady-periodic flow patterns that develop in the pulse tube due to the fluctuations caused by the piston and the presence of the inertance tube. When the secondary flow patterns are well-developed, they help isolate the cold and hot ends of the pulse tube and create a thermal buffer zone at the center of the pulse tube, enhancing the performance of the OPTR. (c) 2012 Elsevier Ltd. All rights reserved.
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Details
- Title
- Numerical analysis of an OPTR: Optimization for space applications
- Creators
- Bakhtier Farouk - Drexel UniversityDion Savio Antao - Drexel University
- Publication Details
- Cryogenics (Guildford), v 52(4-6)
- Publisher
- Elsevier
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000305496100013
- Scopus ID
- 2-s2.0-84861343640
- Other Identifier
- 991019169535304721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Physics, Applied
- Thermodynamics