Development and experimental investigation of Stirling-type pulse tube refrigerator (PTR) below 20 K; cold compressor and colder expander

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This research paper focuses on the experimental investigation of the Stirling-type pulse tube refrigerator with cold compression concept. Due to this innovative feature, the pulse tube refrigerator can reach lower temperature effectively other typical single-stage Stirlingtype pulse tube refrigerators. The experiment as a proof of concept is carried out to demonstrate the capability of the pulse tube refrigerator operating between 80 K and 20 K. The cold linear compressor, which is submerged in a liquid nitrogen bath, produces cold mass flow with the efficiency of 85% for all the frequencies. At the lowest temperature part of the pulse tube refrigerator, the no-load temperature of 18.7 K is recorded and the cooling power of 0.4 W is measured at 20 K. The experimental results are analyzed in dynamic and thermal aspects by using the numerical model. The model can well explain how much losses are distributed in the system. (C) 2017 Elsevier Ltd and IIR. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

BASE TEMPERATURE; CRYOCOOLER; DESIGN

Citation

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, v.75, pp.64 - 76

ISSN
0140-7007
DOI
10.1016/j.ijrefrig.2017.01.017
URI
http://hdl.handle.net/10203/223520
Appears in Collection
ME-Journal Papers(저널논문)
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