Zobrazeno 1 - 10
of 90
pro vyhledávání: '"K.D. Sim"'
Publikováno v:
IEEE Transactions on Applied Superconductivity. 26:1-4
Preheating for nonferrous metals in industry is realized through induction furnaces with a large capacity at commercial frequency. The energy efficiency of this process is about 50%-60% due to enormous energy loss through the copper coils. An ac indu
Autor:
Byeong-Soo Go, Jongho Choi, Mi Young Park, Heui-Joo Park, K.D. Sim, H. J. Moon, Sang-Yong Kim, Sang-Ho Cho, In-Keun Yu
Publikováno v:
IEEE Transactions on Applied Superconductivity. 26:1-4
Conventional induction furnaces have been in operation in nonferrous metal and related industries with poor energy efficiencies of only 50-60%. Moreover, the efficiency of atmosphere furnace, one of the various heating facilities for metal billets, i
Autor:
Sang-Yong Kim, K.D. Sim, Myung-Hwan Sohn, Hong-Soo Ha, In-Keun Yu, Kwangmin Kim, Hunju Lee, Minwon Park
Publikováno v:
IEEE Transactions on Applied Superconductivity. 26:1-5
A dc reactor is operated under a dc current to reduce the current's ripple or harmonics in the power system. General dc reactors in high-voltage dc systems use a metal conductor. This has some disadvantages such as large reactor size, leakage flux, w
Autor:
Dong-Woo Ha, K.D. Sim, H.M. Kim, Seog-Whan Kim, B.Y. Eom, Joon-Han Bae, Myung-Hwan Sohn, Soon-Mok Choi, H.Y. Park
Publikováno v:
Physica C: Superconductivity and its Applications. 471:1449-1453
A conduction-cooled high temperature superconducting (HTS) magnet for the SPMS was fabricated and tested. To achieve an adequate uniformity of background magnetic field, a split-pair winding configuration is used. Room temperature bore of this magnet
Autor:
K.W. Jeong, K. Watanabe, Sangjin Lee, Gyeong-Hun Kim, Jeonwook Cho, Youngjin Won, J.G. Kim, In-Keun Yu, M. Park, A-Rong Kim, K.D. Sim
Publikováno v:
Physica C: Superconductivity and its Applications. 471:1290-1294
Jeju island is located approximately 100 km south from the mainland of Korea, and had a peak load of about 553 MW in 2008. The demand increases 7.2% a year over the last 5 years. Since the wind profiles of Jeju island are more favorable than mainland
Autor:
Minwon Park, A-Rong Kim, Kwangmin Kim, Gyeong-Hun Kim, K.D. Sim, In-Keun Yu, Seokho Kim, Myung-Hwan Sohn, Dae-Won Kim, Ki-Chul Seong
Publikováno v:
Physica C: Superconductivity and its Applications. 470:1695-1702
This paper analyzes the operational characteristics of conduction cooling Superconducting Magnetic Energy Storage (SMES) through a real hardware based simulation. To analyze the operational characteristics, the authors manufactured a small-scale toro
Autor:
J.G. Kim, Minwon Park, Kwangmin Kim, H.J. Bae, H.J. Kim, In-Keun Yu, M.H. Shon, B.Y. Eom, Dae-Won Kim, Ki-Chul Seong, Seokho Kim, K.D. Sim, A-Rong Kim
Publikováno v:
Physica C: Superconductivity and its Applications. 470:1711-1716
This paper analyzed the heat characteristics of a conduction cooling toroidal-type SMES magnet. The authors designed and manufactured a conduction cooling toroidal-type SMES magnet which consists of 30 double pancake coils. One (a single pancake coil
Autor:
Dae-Won Kim, K.D. Sim, J.G. Kim, In-Keun Yu, A-Rong Kim, Jeonwook Cho, Seokho Kim, Minwon Park
Publikováno v:
Physica C: Superconductivity and its Applications. 470:1592-1596
High temperature superconducting (HTS) power cables offer an innovative transmission line that differs from conventional technologies because HTS power cables can send bulk power with extremely low loss. This paper investigates the loss characteristi
Autor:
Minwon Park, Jeonwook Cho, A-Rong Kim, Dae-Won Kim, Youngjin Won, S.J. Lee, Seokho Kim, K.D. Sim, J.G. Kim, In-Keun Yu
Publikováno v:
Physica C: Superconductivity and its Applications. 470:1601-1605
The authors calculated the loss of the High Temperature Superconducting (HTS) model cable using Norris ellipse formula, and measured the loss of the model cable experimentally. Two kinds of measuring method are used. One is the electrical method, and
Autor:
J.G. Kim, In-Keun Yu, Ki-Chul Seong, A-Rong Kim, Seokho Kim, Myung-Hwan Sohn, Kwangmin Kim, K.D. Sim, Minwon Park
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 24:1007-1014
Output power of the wind power generation system (WPGS) fluctuates due to wind speed variation and affects the frequency and voltage fluctuations of the utility. Superconducting Magnetic Energy Storage (SMES) can overcome these fluctuations because o