The design and testing of a cooling system using mixed solid cryogen for a portable superconducting magnetic energy storage system

K. L. Kim, J. B. Song, J. H. Choi, S. H. Kim, D. Y. Koh, K. C. Seong, H. M. Chang, Haigun Lee

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A cooling system that uses solid nitrogen (SN2) as an effective heat capacity enhancer was recently introduced to enhance the thermal stability of the HTS SMES. Since SN2 has a large enthalpy with minimal weight, it enables a portable system by increasing the recooling to recooling time period (RRTP). However, contact between the SN2 and HTS SMES magnet can be broken by repeated thermal disturbances (thermal 'dry-out' phenomena). Therefore, it is essential to improve thermal contact to allow full use of the heat capacity of SN2. This study evaluated the effect of using a mixture containing SN2 and a small amount of a liquid cryogen as a cooling system in the HTS SMES system. The performance of the cooling system was evaluated using the mixed cryogen and compared with that of SN2 alone. In addition, the role of liquid neon (Ne) as a heat exchanger between SN2 and the HTS SMES magnet is discussed.

Original languageEnglish
Article number125006
JournalSuperconductor Science and Technology
Volume23
Issue number12
DOIs
Publication statusPublished - 2010 Dec 1

Fingerprint

solid cryogens
magnetic energy storage
cooling systems
Cooling systems
Energy storage
Specific heat
Magnets
Testing
magnets
liquid neon
specific heat
Neon
solid nitrogen
Liquids
heat exchangers
Heat exchangers
electric contacts
Enthalpy
Thermodynamic stability
thermal stability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Ceramics and Composites
  • Materials Chemistry
  • Metals and Alloys

Cite this

The design and testing of a cooling system using mixed solid cryogen for a portable superconducting magnetic energy storage system. / Kim, K. L.; Song, J. B.; Choi, J. H.; Kim, S. H.; Koh, D. Y.; Seong, K. C.; Chang, H. M.; Lee, Haigun.

In: Superconductor Science and Technology, Vol. 23, No. 12, 125006, 01.12.2010.

Research output: Contribution to journalArticle

Kim, K. L. ; Song, J. B. ; Choi, J. H. ; Kim, S. H. ; Koh, D. Y. ; Seong, K. C. ; Chang, H. M. ; Lee, Haigun. / The design and testing of a cooling system using mixed solid cryogen for a portable superconducting magnetic energy storage system. In: Superconductor Science and Technology. 2010 ; Vol. 23, No. 12.
@article{808e32720bcb456cbca3f3e17a6338ce,
title = "The design and testing of a cooling system using mixed solid cryogen for a portable superconducting magnetic energy storage system",
abstract = "A cooling system that uses solid nitrogen (SN2) as an effective heat capacity enhancer was recently introduced to enhance the thermal stability of the HTS SMES. Since SN2 has a large enthalpy with minimal weight, it enables a portable system by increasing the recooling to recooling time period (RRTP). However, contact between the SN2 and HTS SMES magnet can be broken by repeated thermal disturbances (thermal 'dry-out' phenomena). Therefore, it is essential to improve thermal contact to allow full use of the heat capacity of SN2. This study evaluated the effect of using a mixture containing SN2 and a small amount of a liquid cryogen as a cooling system in the HTS SMES system. The performance of the cooling system was evaluated using the mixed cryogen and compared with that of SN2 alone. In addition, the role of liquid neon (Ne) as a heat exchanger between SN2 and the HTS SMES magnet is discussed.",
author = "Kim, {K. L.} and Song, {J. B.} and Choi, {J. H.} and Kim, {S. H.} and Koh, {D. Y.} and Seong, {K. C.} and Chang, {H. M.} and Haigun Lee",
year = "2010",
month = "12",
day = "1",
doi = "10.1088/0953-2048/23/12/125006",
language = "English",
volume = "23",
journal = "Superconductor Science and Technology",
issn = "0953-2048",
publisher = "IOP Publishing Ltd.",
number = "12",

}

TY - JOUR

T1 - The design and testing of a cooling system using mixed solid cryogen for a portable superconducting magnetic energy storage system

AU - Kim, K. L.

AU - Song, J. B.

AU - Choi, J. H.

AU - Kim, S. H.

AU - Koh, D. Y.

AU - Seong, K. C.

AU - Chang, H. M.

AU - Lee, Haigun

PY - 2010/12/1

Y1 - 2010/12/1

N2 - A cooling system that uses solid nitrogen (SN2) as an effective heat capacity enhancer was recently introduced to enhance the thermal stability of the HTS SMES. Since SN2 has a large enthalpy with minimal weight, it enables a portable system by increasing the recooling to recooling time period (RRTP). However, contact between the SN2 and HTS SMES magnet can be broken by repeated thermal disturbances (thermal 'dry-out' phenomena). Therefore, it is essential to improve thermal contact to allow full use of the heat capacity of SN2. This study evaluated the effect of using a mixture containing SN2 and a small amount of a liquid cryogen as a cooling system in the HTS SMES system. The performance of the cooling system was evaluated using the mixed cryogen and compared with that of SN2 alone. In addition, the role of liquid neon (Ne) as a heat exchanger between SN2 and the HTS SMES magnet is discussed.

AB - A cooling system that uses solid nitrogen (SN2) as an effective heat capacity enhancer was recently introduced to enhance the thermal stability of the HTS SMES. Since SN2 has a large enthalpy with minimal weight, it enables a portable system by increasing the recooling to recooling time period (RRTP). However, contact between the SN2 and HTS SMES magnet can be broken by repeated thermal disturbances (thermal 'dry-out' phenomena). Therefore, it is essential to improve thermal contact to allow full use of the heat capacity of SN2. This study evaluated the effect of using a mixture containing SN2 and a small amount of a liquid cryogen as a cooling system in the HTS SMES system. The performance of the cooling system was evaluated using the mixed cryogen and compared with that of SN2 alone. In addition, the role of liquid neon (Ne) as a heat exchanger between SN2 and the HTS SMES magnet is discussed.

UR - http://www.scopus.com/inward/record.url?scp=78649928371&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649928371&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/23/12/125006

DO - 10.1088/0953-2048/23/12/125006

M3 - Article

VL - 23

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 12

M1 - 125006

ER -