抄録
A computer simulation has been developed to estimate the transient temperature and pressure distributions in a high-temperature superconducting (HTS) power cable cooled by a forced flow of subcooled LN2. This simulation is critical for assessing the effects of short-circuit accidents in practical HTS power cables. When a fault occurs, an excessive current of 31.5 kA may flow in a cable for 2 s, and it is important to understand the temperature and pressure profiles in a cable cooled by the forced flow of LN2 when these faults occur until the disturbance flows out from a cable. The temperature profile of the LN2 coolant and the cable cores was analyzed by solving heat conduction and heat transfer equations using the finite-difference method. The Cryodata GASPAK software package was used to estimate the fluid properties. The simulation results show a fairly good agreement with the experimental results. By employing a new model of the induction refrigeration system and the circulation pump, a small discrepancy is resolved in pressures between simulation and experiment. The analysis results show that the pressure in the cable significantly changes depending on the initial gas volumes in the terminals and the volume of the LN2 gas that evaporates from the copper former in the cable.
| 元の言語 | English |
|---|---|
| 記事番号 | 7000527 |
| ジャーナル | IEEE Transactions on Applied Superconductivity |
| 巻 | 25 |
| 発行部数 | 3 |
| DOI | |
| 出版物ステータス | Published - 2015 6 1 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
これを引用
Temperature and pressure simulation of a high-temperature superconducting cable cooled by subcooled LN2 with fault current. / Sato, Yusuke; Agatsuma, Koh; Wang, Xudong; Ishiyama, Atsushi.
：: IEEE Transactions on Applied Superconductivity, 巻 25, 番号 3, 7000527, 01.06.2015.研究成果: Article
}
TY - JOUR
T1 - Temperature and pressure simulation of a high-temperature superconducting cable cooled by subcooled LN2 with fault current
AU - Sato, Yusuke
AU - Agatsuma, Koh
AU - Wang, Xudong
AU - Ishiyama, Atsushi
PY - 2015/6/1
Y1 - 2015/6/1
N2 - A computer simulation has been developed to estimate the transient temperature and pressure distributions in a high-temperature superconducting (HTS) power cable cooled by a forced flow of subcooled LN2. This simulation is critical for assessing the effects of short-circuit accidents in practical HTS power cables. When a fault occurs, an excessive current of 31.5 kA may flow in a cable for 2 s, and it is important to understand the temperature and pressure profiles in a cable cooled by the forced flow of LN2 when these faults occur until the disturbance flows out from a cable. The temperature profile of the LN2 coolant and the cable cores was analyzed by solving heat conduction and heat transfer equations using the finite-difference method. The Cryodata GASPAK software package was used to estimate the fluid properties. The simulation results show a fairly good agreement with the experimental results. By employing a new model of the induction refrigeration system and the circulation pump, a small discrepancy is resolved in pressures between simulation and experiment. The analysis results show that the pressure in the cable significantly changes depending on the initial gas volumes in the terminals and the volume of the LN2 gas that evaporates from the copper former in the cable.
AB - A computer simulation has been developed to estimate the transient temperature and pressure distributions in a high-temperature superconducting (HTS) power cable cooled by a forced flow of subcooled LN2. This simulation is critical for assessing the effects of short-circuit accidents in practical HTS power cables. When a fault occurs, an excessive current of 31.5 kA may flow in a cable for 2 s, and it is important to understand the temperature and pressure profiles in a cable cooled by the forced flow of LN2 when these faults occur until the disturbance flows out from a cable. The temperature profile of the LN2 coolant and the cable cores was analyzed by solving heat conduction and heat transfer equations using the finite-difference method. The Cryodata GASPAK software package was used to estimate the fluid properties. The simulation results show a fairly good agreement with the experimental results. By employing a new model of the induction refrigeration system and the circulation pump, a small discrepancy is resolved in pressures between simulation and experiment. The analysis results show that the pressure in the cable significantly changes depending on the initial gas volumes in the terminals and the volume of the LN2 gas that evaporates from the copper former in the cable.
KW - fault currents
KW - heat transfer
KW - heat-conduction equations
KW - High-temperature superconductors
KW - power cables
KW - subcooled LN2
UR - http://www.scopus.com/inward/record.url?scp=84924189800&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84924189800&partnerID=8YFLogxK
U2 - 10.1109/TASC.2014.2387119
DO - 10.1109/TASC.2014.2387119
M3 - Article
AN - SCOPUS:84924189800
VL - 25
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3
M1 - 7000527
ER -