Plate-fin heat-exchangers for a 10 kW Brayton cryocooler and a 1 km HTS cable
- Authors
- 장호명
- Issue Date
- 1-Sep-2015
- Publisher
- ELSEVIER SCI LTD
- Citation
- Physics Procedia, v.67, no.1, pp.221 - 226
- Journal Title
- Physics Procedia
- Volume
- 67
- Number
- 1
- Start Page
- 221
- End Page
- 226
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/9484
- ISSN
- 1875-3892
- Abstract
- Plate-fin heat exchangers (PFHX) are designed and fabricated for a cryogenic cooling system, serving for a 10 kW Brayton cryocooler and a 1 km HTS transmission cable under development in Korea. To achieve compactness and thermal efficiency at the same time, a recuperative HX for Brayton cycle and a sub-cooling HX of liquid nitrogen for HTS cable are designed as integrated parts. A key design feature is focused on the coldest part of sub-cooling HX, where the streams of liquid nitrogen and refrigerant (helium gas) are arranged as two-pass cross-flow so that the risk of freeze-out of liquid nitrogen can be reduced. Details of hardware PFHX design are presented and discussed towards its immediate application to the HTS cable system.
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Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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