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http://dx.doi.org/10.7316/KHNES.2020.31.5.429

Performance Test of 2 kW Class Reverse Brayton Refrigeration System  

KO, JUNSEOK (Energy Systems Research Division, Korea Institute of Machinery & Materials)
LEE, KEUN-TAE (Energy Systems Research Division, Korea Institute of Machinery & Materials)
PARK, SEONG-JE (Energy Systems Research Division, Korea Institute of Machinery & Materials)
KIM, JONGWOO (Energy Systems Research Division, Korea Institute of Machinery & Materials)
CHOO, SANGYOON (Energy Systems Research Division, Korea Institute of Machinery & Materials)
HONG, YONG-JU (Energy Systems Research Division, Korea Institute of Machinery & Materials)
IN, SEHWAN (Energy Systems Research Division, Korea Institute of Machinery & Materials)
PARK, JIHO (Energy Systems Research Division, Korea Institute of Machinery & Materials)
KIM, HYOBONG (Energy Systems Research Division, Korea Institute of Machinery & Materials)
YEOM, HANKIL (Energy Systems Research Division, Korea Institute of Machinery & Materials)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.31, no.5, 2020 , pp. 429-435 More about this Journal
Abstract
This paper describes the experimental study of reverse-Brayton refrigeration system for application to high temperature superconductivity electric devices and LNG re-liquefaction. The reverse-Brayton refrigeration cycle is designed with operating pressure of 0.5 and 1.0 MPa, cooling capacity of 2 kW at 77 K, and neon as a working fluid. The refrigeration system is developed with multi scroll compressor, turbo expander and plate heat exchanger. From experiments, the performance characteristics of used components is measured and discussed for 77-120 K of operating temperature. The developed refrigeration system shows the cooling capacity of 1.23 kW at 77 K and 1.64 kW at 110 K.
Keywords
Reverse-Brayton cycle; High temperature superconducting device; LNG re-liquefaction; Scroll compressor; Turbo expander; Cryogenic heat exchanger;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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