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Performance optimization of a miniature Joule-Thomson cryocooler using numerical model

DSpace at IIT Bombay

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Title Performance optimization of a miniature Joule-Thomson cryocooler using numerical model
 
Creator ARDHAPURKAR, PM
ATREY, MD
 
Subject Joule-Thomson cryocooler
Heat exchanger
Optimization
Cooling capacity
Performance
TRANSIENT CHARACTERISTICS
COOLER
 
Description The performance of a miniature Joule-Thomson cryocooler depends on the effectiveness of the heat exchanger. The heat exchanger used in such cryocooler is Hampson-type recuperative heat exchanger. The design of the efficient heat exchanger is crucial for the optimum performance of the cryocooler. In the present work, the heat exchanger is numerically simulated for the steady state conditions and the results are validated against the experimental data available from the literature. The area correction factor is identified for the calculation of effective heat transfer area which takes into account the effect of helical geometry. In order to get an optimum performance of the cryocoolers, operating parameters like mass flow rate, pressure and design parameters like heat exchanger length, helical diameter of coil, fin dimensions, fin density have to be identified. The present work systematically addresses this aspect of design for miniature J-T cryocooler. (C) 2014 Elsevier Ltd. All rights reserved.
 
Publisher ELSEVIER SCI LTD
 
Date 2014-12-28T17:54:29Z
2014-12-28T17:54:29Z
2014
 
Type Article
 
Identifier CRYOGENICS, 6394-101
0011-2275
1879-2235
http://dx.doi.org/10.1016/j.cryogenics.2014.07.006
http://dspace.library.iitb.ac.in/jspui/handle/100/17041
 
Language English