INERTANCE TUBE MODELING AND THE EFFECTS OF TEMPERATURE
Author(s) -
C. Dodson,
A. Razani,
T. Roberts,
J. G. Weisend
Publication year - 2010
Publication title -
aip conference proceedings
Language(s) - English
Resource type - Conference proceedings
eISSN - 1551-7616
pISSN - 0094-243X
DOI - 10.1063/1.3422288
Subject(s) - inertance , cryocooler , pulse tube refrigerator , tube (container) , mechanics , computational fluid dynamics , computer science , materials science , control theory (sociology) , mechanical engineering , regenerative heat exchanger , physics , engineering , control (management) , heat exchanger , artificial intelligence
Pulse tube refrigerators (PTRs) have made dramatic improvements in reliability, efficiency and usage. Inertance tube PTRs have been one of the keys to these improvements. The inertance tube is the component in the PTR that most easily affects the control of the PTR fluid dynamics. In one application in multistage cryocoolers, the performance of inertance tubes at the cryogenic temperatures is of interest. One purpose of this paper is to understand how temperature and the size of the reservoir influence the phase shift between mass flow rate and pressure at the inlet of the inertance tube. Various models including a two dimensional Computational Fluid Dynamics (CFD) will be compared to understand how these models can predict the phase shift and the acoustic power.
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