Abstract
In this study, a computer program was developed to simulate the temperature and pressure distributions of a liquid nitrogen (LN) coolant in a higherature superconducting (HTS) power cable. This program is important for realizing a practical HTS power cable. According to the Japanese criterion for a 66-kV power-transmission system, in a worst case short-circuit accident, a fault current of 31.5 kA may flow in a 66-kV cable system for 2 s. In addition, when a short-circuit accident occurs, the temperature and pressure of an LN coolant increase rapidly The temperature behaviors of the cable cores and coolant were analyzed by solving the nonlinear partial differential heat-conduction equations in the cable cores by considering the energy balance of the heat flow by using the finite-difference method. Moreover, the pressure behaviors of the coolant in a cooling system were analyzed, considering the density and volume behaviors of the coolant. The simulation results for the 66-kV 40-m model cable qualitatively reproduced the experimental results satisfactorily.
| Original language | English |
|---|---|
| Article number | 5401305 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 29 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2019 Aug 1 |
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Keywords
- Cooling system
- fault current
- higherature superconducting power cable
- LN coolant
- saturation temperature
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Comparison between Simulation and Experimental Results of Liquid Nitrogen Coolant Distribution in a 66-kV 40-m Model HTS Power Cable System Experiencing Short-Circuit Accidents. / Horita, Daichi; Agatsuma, Koh; Ishiyama, Atsushi; Masuda, Takato; Morimura, Toshiya; Mimura, Tomoo.
In: IEEE Transactions on Applied Superconductivity, Vol. 29, No. 5, 5401305, 01.08.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparison between Simulation and Experimental Results of Liquid Nitrogen Coolant Distribution in a 66-kV 40-m Model HTS Power Cable System Experiencing Short-Circuit Accidents
AU - Horita, Daichi
AU - Agatsuma, Koh
AU - Ishiyama, Atsushi
AU - Masuda, Takato
AU - Morimura, Toshiya
AU - Mimura, Tomoo
PY - 2019/8/1
Y1 - 2019/8/1
N2 - In this study, a computer program was developed to simulate the temperature and pressure distributions of a liquid nitrogen (LN) coolant in a higherature superconducting (HTS) power cable. This program is important for realizing a practical HTS power cable. According to the Japanese criterion for a 66-kV power-transmission system, in a worst case short-circuit accident, a fault current of 31.5 kA may flow in a 66-kV cable system for 2 s. In addition, when a short-circuit accident occurs, the temperature and pressure of an LN coolant increase rapidly The temperature behaviors of the cable cores and coolant were analyzed by solving the nonlinear partial differential heat-conduction equations in the cable cores by considering the energy balance of the heat flow by using the finite-difference method. Moreover, the pressure behaviors of the coolant in a cooling system were analyzed, considering the density and volume behaviors of the coolant. The simulation results for the 66-kV 40-m model cable qualitatively reproduced the experimental results satisfactorily.
AB - In this study, a computer program was developed to simulate the temperature and pressure distributions of a liquid nitrogen (LN) coolant in a higherature superconducting (HTS) power cable. This program is important for realizing a practical HTS power cable. According to the Japanese criterion for a 66-kV power-transmission system, in a worst case short-circuit accident, a fault current of 31.5 kA may flow in a 66-kV cable system for 2 s. In addition, when a short-circuit accident occurs, the temperature and pressure of an LN coolant increase rapidly The temperature behaviors of the cable cores and coolant were analyzed by solving the nonlinear partial differential heat-conduction equations in the cable cores by considering the energy balance of the heat flow by using the finite-difference method. Moreover, the pressure behaviors of the coolant in a cooling system were analyzed, considering the density and volume behaviors of the coolant. The simulation results for the 66-kV 40-m model cable qualitatively reproduced the experimental results satisfactorily.
KW - Cooling system
KW - fault current
KW - higherature superconducting power cable
KW - LN coolant
KW - saturation temperature
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UR - http://www.scopus.com/inward/citedby.url?scp=85062881596&partnerID=8YFLogxK
U2 - 10.1109/TASC.2019.2895676
DO - 10.1109/TASC.2019.2895676
M3 - Article
VL - 29
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 5
M1 - 5401305
ER -