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http://dx.doi.org/10.9714/psac.2018.20.3.028

Development and performance test of a liquid nitrogen circulation pump for HTS power cable  

Seok, Jihoon (Changwon National University)
Kim, Dongmin (Changwon National University)
Lee, Changhyeong (Changwon National University)
Kim, Manryeol (OZ INDUSTRY)
Choi, Jeongdong (Hi-tech)
Kim, Seokho (Changwon National University)
Publication Information
Progress in Superconductivity and Cryogenics / v.20, no.3, 2018 , pp. 28-33 More about this Journal
Abstract
With the continuous performance improvement and commercialization of HTS wires, there have been many efforts to commercialize HTS power cables recently. Unlike conventional power cables, a cryogenic cooling system is required for a HTS power cable and a cryogenic pump is one of the essential components to circulate subcooled liquid nitrogen and cool the HTS power cable. Especially, the development of a reliable and high-efficiency cryogenic pump is an important issue for the commercialization of HTS power cables of several kilometers or more. In this study, we designed and fabricated a cryogenic pump for subcooled liquid nitrogen with a mass flow rate of 1.2 kg/s, a differential pressure of 5 bar, and evaluated the hydraulic performance of the pump. Impeller design was conducted to meet the target design performance with 1 D analysis model and CFD analysis. The pump performance parameters such as pressure heads, mass flow rates, and efficiencies in accordance with rotating speeds were assessed using a laboratory's performance evaluation system.
Keywords
cryogenic; HTS power cable; subcooled liquid nitrogen; circulation pump; impeller; efficiency;
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Times Cited By KSCI : 3  (Citation Analysis)
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